Intermetallics最新文献_第7页

Overcoming strength-ductility trade-off of Mg2Si via Al and O doping: First-principles and experimental investigations 通过Al和O掺杂克服Mg2Si的强度-延性权衡：第一原理和实验研究

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-17 DOI: 10.1016/j.intermet.2025.108739

Jinchuan Wen , Zhangxi Wu , Ming Li , Dahong Zhao , Yuanchun Huang , Yu Liu

{"title":"Overcoming strength-ductility trade-off of Mg2Si via Al and O doping: First-principles and experimental investigations","authors":"Jinchuan Wen , Zhangxi Wu , Ming Li , Dahong Zhao , Yuanchun Huang , Yu Liu","doi":"10.1016/j.intermet.2025.108739","DOIUrl":"10.1016/j.intermet.2025.108739","url":null,"abstract":"<div><div>The intrinsic brittleness of Mg<sub>2</sub>Si severely deteriorates the mechanical properties of composites and limits their potential application as reinforcing particles. This work puts forward a cost-efficient approach to address this challenge by doping Al/O into Mg<sub>2</sub>Si to improve the deformation coordination of Al-Mg<sub>2</sub>Si composites. First-principles calculations revealed that Al doping alone reduced the modulus and hardness of Mg<sub>2</sub>Si and increased its Poisson's ratio, but Al-doped Mg<sub>2</sub>Si still exhibited brittle characteristics. O doping alone or Al/O co-doping further reduced the modulus and hardness of compounds, and realized the transformation of Mg<sub>2</sub>Si from brittle to plastic. Additionally, the anisotropy of doped Mg<sub>2</sub>Si was slightly increased, but Al/O co-doping suppressed the anisotropy to a certain extent compared to doping alone. The underlying mechanism is that Al doping enhanced the metallicity of the compounds, and Al/O co-doping significantly weakened the strength of Mg-Si and Si-Si covalent bonds, and formed new O-Mg and O-Si ionic bonds. Subsequently, nano-indentation experiments were carried out to test the Young's modulus and hardness of samples with different doping elements. The results, in descending order, were as follows: Al<sub>8</sub>Si<sub>4</sub>, Al<sub>8</sub>Si<sub>4</sub>Al, Al<sub>8</sub>Si<sub>4</sub>O, Al<sub>8</sub>Si<sub>4</sub>AlO, which aligned consistently with the theoretical calculations. The Young's modulus and hardness of Mg<sub>8</sub>Si<sub>4</sub>AlO were 72.9 GPa and 198 HV, respectively, which were approximately 48.4 % and 32.4 % lower than those of undoped Mg<sub>2</sub>Si. This work provides valuable insights and guidance for designing novel high-strength and high-toughness composites by doping modified reinforced particles.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108739"},"PeriodicalIF":4.3,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative investigation on microstructural and magnetic properties of Ce- and LaCe-based magnets by grain boundary diffusion with PrGaCu alloy PrGaCu合金晶界扩散对Ce基和lace基磁体组织和磁性能的比较研究

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-16 DOI: 10.1016/j.intermet.2025.108733

Q.W. Zhu, Y.H. Hou, F.T. Ni, Y.Q. Xu, X.W. Liu, W. Li, J.M. Luo, Y.L. Huang

{"title":"Comparative investigation on microstructural and magnetic properties of Ce- and LaCe-based magnets by grain boundary diffusion with PrGaCu alloy","authors":"Q.W. Zhu, Y.H. Hou, F.T. Ni, Y.Q. Xu, X.W. Liu, W. Li, J.M. Luo, Y.L. Huang","doi":"10.1016/j.intermet.2025.108733","DOIUrl":"10.1016/j.intermet.2025.108733","url":null,"abstract":"<div><div>Grain boundary diffusion (GBD) has been proven to be an effective method for improving the coercivity of sintered Nd-Fe-B magnets, however, the matrix composition is also an important factor influencing the improvement of coercivity, which has not been thoroughly investigated. In this work, a comparative investigation is conducted on different dual main phase (DMP) sintered magnets by grain boundary diffusion with Pr<sub>70</sub>Ga<sub>15</sub>Cu<sub>15</sub> alloy. After GBD, the coercivity of La14 magnet increases from 3.9 kOe to 12.0 kOe, much higher than that of La0 magnet and more than three times that of initial magnet, with the same decrease in remanence. The SEM and EPMA results show that a Pr-rich shell around main phase grain and smooth intergranular phase has formed in both magnets, thereby contributing to the improvement of coercivity. However, for La0 magnet, a large number of diffusion sources accumulate on the surface of the magnet, accompanied by abnormal grain growth, which prevents the diffusion source from entering the magnet, resulting in lower coercivity. The different effects of diffusion source on microstructure and magnetic properties of two types of magnets in this study can provide practical guidance for future research.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108733"},"PeriodicalIF":4.3,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing strength and minimizing anisotropy in Fe-Cr-Al-Nb alloys via Fe2Nb particles 通过 Fe2Nb 粒子优化 Fe-Cr-Al-Nb 合金的强度并最小化各向异性

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-15 DOI: 10.1016/j.intermet.2025.108741

Mingyu Fan , Ye Cui , Xue Cao , Wenqing Jiang , Naimeng Liu , Yang Zhang , Yanzhuo Xue , Xun-Li Wang , Zhongwu Zhang

{"title":"Optimizing strength and minimizing anisotropy in Fe-Cr-Al-Nb alloys via Fe2Nb particles","authors":"Mingyu Fan , Ye Cui , Xue Cao , Wenqing Jiang , Naimeng Liu , Yang Zhang , Yanzhuo Xue , Xun-Li Wang , Zhongwu Zhang","doi":"10.1016/j.intermet.2025.108741","DOIUrl":"10.1016/j.intermet.2025.108741","url":null,"abstract":"<div><div>Controlling the texture and grain size of Fe-Cr-Al alloys is essential for enhancing mechanical properties. Here, the effect of Nb on the texture evolution and the anisotropy of mechanical properties in Fe-Cr-Al alloys were investigated. Compared to the annealed Fe-Cr-Al alloy, the yield strength of the annealed Fe-Cr-Al-Nb alloy increased from 430 MPa to 540 MPa with nearly identical rolling and transverse tensile yield strengths. Transmission electron microscope results indicate that the Nb could form Fe<sub>2</sub>Nb particles with an average radius of 50 nm in matrix of the annealed Fe-Cr-Al-Nb alloy. The electron backscatter diffraction results indicate that the grains of the Fe-Cr-Al-Nb alloy are significantly refined by Fe<sub>2</sub>Nb particles, and the α-fiber and γ-fiber textures are weakened, promoting texture randomization. The strengthening calculations indicate that compared to annealed Fe-Cr-Al alloys, the increase in the yield strength of the annealed Fe-Cr-Al-Nb alloy is attributed, in sequence, to dislocation strengthening, Orowan strengthening by particles and grain boundary strengthening. As a result, the annealed Fe-Cr-Al-Nb alloy achieves an increase in yield strength while reducing anisotropy. This finding provides insights for the development of Fe-Cr-Al alloys.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108741"},"PeriodicalIF":4.3,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of the Ti:Al:Cr proportion on the structure and oxidation resistance of ternary intermetallic coatings produced by non-vacuum electron beam cladding Ti:Al:Cr比例对非真空电子束熔覆三元金属间膜结构和抗氧化性能的影响

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-15 DOI: 10.1016/j.intermet.2025.108745

D.V. Lazurenko , A.A. Ruktuev , Yu N. Malyutina , G.D. Dovzhenko , L. Song , N.S. Aleksandrova , E.A. Lozhkina , E.V. Domarov , A.V. Ukhina

{"title":"Influence of the Ti:Al:Cr proportion on the structure and oxidation resistance of ternary intermetallic coatings produced by non-vacuum electron beam cladding","authors":"D.V. Lazurenko , A.A. Ruktuev , Yu N. Malyutina , G.D. Dovzhenko , L. Song , N.S. Aleksandrova , E.A. Lozhkina , E.V. Domarov , A.V. Ukhina","doi":"10.1016/j.intermet.2025.108745","DOIUrl":"10.1016/j.intermet.2025.108745","url":null,"abstract":"<div><div>Titanium is known to be a material with poor oxidation resistance. When heated, it reacts with atmospheric gases, leading to the formation of the TiO<sub>2</sub> oxide film on its surface. This film does not protect the material against further oxidation. To solve this problem, heat-resistant coatings, including TiAl-based ones, are applied to titanium. This study investigates ternary Ti-Al-Cr surface layers with different concentrations of components. The protective layers were fabricated on titanium substrates by non-vacuum electron beam cladding. This method provides the formation of thick coatings (up to 2 mm in a single pass of the electron beam); however, the structure of the cladding layers can be significantly inhomogeneous. To reveal the influence of microstructural features of the coatings and the uneven elemental distribution on their oxidation behavior, detailed structural studies combined with the CALPHAD method were performed both before and after oxidation testing. It was found that an Al-rich alloy consisting primarily of the γ-phase provided the best protection against oxidation. The introduction of high concentrations of both Al and Cr yielded contradictory results. Although the L1<sub>2</sub>-and C14-phases formed in the coating are predicted to contribute to the development of a protective Al<sub>2</sub>O<sub>3</sub> film, the oxidation resistance of this cladding layer was comparable to that of titanium. This result can be attributed to the inhomogeneity of the coating and the appearance of the B2-phase in local areas of the coating at oxidation temperature and the decomposition of the Cr-depleted C14-phase. Furthermore, the Cr-rich B2-phase provides better oxidation resistance than the α<sub>2</sub>-phase of Al-lean cladding layers.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108745"},"PeriodicalIF":4.3,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Annealing-induced softening and metamagnetictransition control in MnFePSi microwires MnFePSi微丝的退火诱导软化和超磁过渡控制

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-14 DOI: 10.1016/j.intermet.2025.108742

Mohamed Salaheldeen , Valentina Zhukova , James Rosero , Daniel Salazar , Arcady Zhukov

{"title":"Annealing-induced softening and metamagnetictransition control in MnFePSi microwires","authors":"Mohamed Salaheldeen , Valentina Zhukova , James Rosero , Daniel Salazar , Arcady Zhukov","doi":"10.1016/j.intermet.2025.108742","DOIUrl":"10.1016/j.intermet.2025.108742","url":null,"abstract":"<div><div>The effect of high-temperature annealing on the magnetic, morphological, and microstructural properties of MnFePSi glass-coated microwires (GCMWs) and bulk sample is studied. A comparative analysis is conducted to elucidate the direct influence of annealing at 1373 K on their physical characteristics. Notably, significant differences in magneto-structural behavior are observed between as-prepared GCMWs and the bulk alloy. For the bulk sample, annealing promotes homogenization and a decrease in the average grain size from 24 μm to 2 μm, as confirmed by SEM and XRD analyses. In contrast, a broader grain size distribution in MnFePSi GCMWs, ranging from 0.8 μm to 40 nm compared to the as-prepared sample's with relatively uniform size of 36 nm is induced by annealing. Additionally, annealing enhances the Fe<sub>2</sub>P phase content in both samples. The annealing process significantly affects magnetic properties of MnFePSi GCMWs. A notable reduction in coercivity (<em>H</em><sub><em>c</em></sub>) is observed, with a decrease in <em>H</em><sub><em>c</em></sub> from 761 Oe (as-prepared) to <em>H</em><sub><em>c</em></sub> = 46 Oe (annealed), as evaluated from the hysteresis (M − H) loop measured at <em>T</em> = 5 K. The as-prepared MnFePSi-GCMWs exhibit a unique metamagnetic phase transition in M − H loops measured at various temperatures (200 K–5 K). Conversely, the annealed GCMWs display a more uniform metamagnetic transition in M − H loops measured at <em>T</em> = 20 K and 5 K. Furthermore, as-prepared GCMWs exhibit multistep magnetic M − H loops below 100 K, which is absent in the annealed samples. This study underlines the substantial effect of the annealing on MnFePSi-GCMWs, enabling the tailoring of magnetic phenomena, such as metamagnetic phase transition, multistep magnetic behavior, and the control of magnetic response (hardening/softening). These tailored properties can be exploited in a wide range of applications based on glass-coated microwires.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108742"},"PeriodicalIF":4.3,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and characterization of CoCrFeNi high entropy alloy composites reinforced by B4C ceramic particles B4C陶瓷颗粒增强CoCrFeNi高熵合金复合材料的研制与表征

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-14 DOI: 10.1016/j.intermet.2025.108740

Aoxiang Li, Kaiwen Kang, Borui Zhang, Jinshan Zhang, Di Huang, Mingkun Xu, Saike Liu, Yiteng Jiang, Gong Li

{"title":"Development and characterization of CoCrFeNi high entropy alloy composites reinforced by B4C ceramic particles","authors":"Aoxiang Li, Kaiwen Kang, Borui Zhang, Jinshan Zhang, Di Huang, Mingkun Xu, Saike Liu, Yiteng Jiang, Gong Li","doi":"10.1016/j.intermet.2025.108740","DOIUrl":"10.1016/j.intermet.2025.108740","url":null,"abstract":"<div><div>To address the challenge of the low yield strength of single-phase FCC high-entropy alloys (HEAs), developing high-performance HEA composites has emerged as a promising strategy for enhancing the mechanical properties of HEAs. In this study, we propose a novel CoCrFeNi-based HEA composites incorporating a small amount of B<sub>4</sub>C ceramic particles. The influence of varying B<sub>4</sub>C ceramic particle content on the microstructure evolution and mechanical properties of CoCrFeNi(B<sub>4</sub>C)<sub>x</sub> HEAs was systematically investigated. Microstructure analysis reveals that increasing the B<sub>4</sub>C ceramic particles promoted the precipitation of M<sub>7</sub>C<sub>3</sub> carbides at grain boundaries, resulting in a dendritic microstructure. Mechanical testing demonstrated a significant improvement in yield strength and Vickers hardness, attributed to the synergistic strengthening of solution and precipitation strengthening. Furthermore, the microhardness of the M<sub>7</sub>C<sub>3</sub> carbides increased from 12.1 GPa to 15.5 GPa with higher B<sub>4</sub>C ceramic particle content, highlighting the contribution of these carbides to the overall hardness of the composite. This design strategy exploits the synergy between the metal matrix and ceramic reinforcements, improving mechanical performance and offering new possibilities for the development of advanced materials for demanding industrial applications.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108740"},"PeriodicalIF":4.3,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hot deformation induced microstructural evolution in Fe14Cr ODS alloy manufactured by selective laser melting 选择性激光熔化制备Fe14Cr ODS合金的热变形诱导组织演变

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-13 DOI: 10.1016/j.intermet.2025.108736

An Li , Qingchun Chen , Changqing Teng , Jianjun Mao , Xiaoyong Wu , Zhongqiang Fang , Xianggang Kong , Lu Wu , Jun Tang

{"title":"Hot deformation induced microstructural evolution in Fe14Cr ODS alloy manufactured by selective laser melting","authors":"An Li , Qingchun Chen , Changqing Teng , Jianjun Mao , Xiaoyong Wu , Zhongqiang Fang , Xianggang Kong , Lu Wu , Jun Tang","doi":"10.1016/j.intermet.2025.108736","DOIUrl":"10.1016/j.intermet.2025.108736","url":null,"abstract":"<div><div>Hot working, as an important post-treatment process in additive manufacturing (AM), can be used to reduce solidification defects, property anisotropy, grain refinement, and improve the applicability of AM technology. In this work, hot deformation tests were conducted on the preformed Fe14Cr oxide dispersion strengthened (ODS) parts, fabricated by selective laser melting (SLM), on the Gleeble-3800 simulator at temperatures ranging from 850 °C to 1150 °C. The microstructure evolution before and after deformation, the effects of deformation temperature on microstructure, and the stability of nanoparticles were analyzed. The results indicate that friction-induced stress distribution during hot compressive deformation leads to microstructural heterogeneity. The increase of deformation temperature promotes dynamic recrystallization (DRX) and reduces the nonuniform deformation. The relative position of oxide nanoparticles with respect to grain boundaries is primarily determined by grain migration and dissolution precipitation during hot deformation. The pinning effect of solute elements on crystal defects can inhibit dynamic recovery during high-temperature plastic deformation, thereby promoting recrystallization.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108736"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanosynthesis formation study and electrical resistivity of short milled Fe50Mn35Sn15 Heusler intermetallic compound 短磨Fe50Mn35Sn15 Heusler金属间化合物的力学合成、形成及电阻率研究

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-13 DOI: 10.1016/j.intermet.2025.108738

Florin Popa , Traian Florin Marinca , Niculina Argentina Sechel , Horea Florin Chicinaș , Dan Ioan Frunză , Ionel Chicinaș

{"title":"Mechanosynthesis formation study and electrical resistivity of short milled Fe50Mn35Sn15 Heusler intermetallic compound","authors":"Florin Popa , Traian Florin Marinca , Niculina Argentina Sechel , Horea Florin Chicinaș , Dan Ioan Frunză , Ionel Chicinaș","doi":"10.1016/j.intermet.2025.108738","DOIUrl":"10.1016/j.intermet.2025.108738","url":null,"abstract":"<div><div>Although the Heusler alloys are usually obtained by arc melting, in this study we choose to investigate the formation of the off stoichiometric Fe<sub>50</sub>Mn<sub>35</sub>Sn<sub>15</sub> (at. %) Heusler alloy by mechanical alloying using elemental powders as raw materials. The mechanical alloying was conducted in high-purity argon gas up to 30 h, using a planetary ball mill. The formation by mechanical alloying can be described as complex one, with the formation of the A<sub>2</sub> disordered Heusler phase as the majority phase after 15 h of milling. Milling the alloy up to 30 h, led to Heusler phase decomposition. The phase formation and obtained quantities were analysed using the Rietveld method applied to the recorded X-ray diffraction patterns. Evolution of the mean crystalline size and lattice strain versus milling time were computed. After 30 h of milling, the mean crystallite size of the milled alloy reached a value of 50 nm. The morphology and element distribution were analysed by scanning electron microscopy and energy dispersive X-ray spectroscopy. Particle size distribution showed important changes upon elements reaction, as the elements react, the median particle size (D50) decreases up to 3.5 μm and further increases at 5 μm as the main phase is the A<sub>2</sub> Heusler phase. The electrical resistivity was investigated, and an evolution with phase formation was found, as the electrical resistivity increased up 5.83mΩm at 10 h where an equilibrium between initial elements and Ni2MnSn Heusler phase is found, followed by a sharp decrease up to 2.8 mΩm for 30 h of milling as the Heusler phase is the main phase.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108738"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical properties of novel 3D printing 316L stainless steel honeycomb structure reinforced aluminum matrix composites 新型3D打印316L不锈钢蜂窝结构增强铝基复合材料的力学性能

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-13 DOI: 10.1016/j.intermet.2025.108743

Chengjian Wang , Cheng Wang , Zhenhua Li , Yuanhuai He , Zhijun Zhang , Yingying Zhang

{"title":"Mechanical properties of novel 3D printing 316L stainless steel honeycomb structure reinforced aluminum matrix composites","authors":"Chengjian Wang , Cheng Wang , Zhenhua Li , Yuanhuai He , Zhijun Zhang , Yingying Zhang","doi":"10.1016/j.intermet.2025.108743","DOIUrl":"10.1016/j.intermet.2025.108743","url":null,"abstract":"<div><div>The investigation of engineering materials has consistently focused on developing lightweight structures that can bear loads and absorb energy efficiently. This study involved the creation of a novel aluminum (Al) matrix composite by merging selective laser melting technology with infiltration casting. The mechanical properties of the composite material were manipulated by altering the parameters of the reinforced body cells. The results show that a strong metallurgical bond is formed between the honeycomb structure and the matrix, which greatly improves the overall performance of the composite. The hexagonal tubular intermetallic compounds (IMC) layer and the honeycomb-filled tube strengthen the honeycomb-filled tube/Al matrix composites (HFT/AMC). The new composite material's compressive strength was found to be positively related to the percentage of the IMC layer. The analysis of data from HFT/AMCs made from honeycomb-filled tubes with structurally different parameters demonstrated this relationship. The introduction of honeycomb-filled tube reinforcements and the distribution regulation of IMCs provide new methods and ideas for the design and development of Al matrix composites.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108743"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser-beam powder bed fusion and post-build annealing of polycrystalline Fe81Ga19 alloys: Microstructure manipulation and magnetostrictive properties 多晶Fe81Ga19合金的激光粉末床熔合和后期退火：显微组织操纵和磁致伸缩性能

IF 4.3 2区材料科学

Intermetallics Pub Date : 2025-03-13 DOI: 10.1016/j.intermet.2025.108734

Chengde Gao , Xiong Yao , Qi Zeng , Wei Tan , Shuaishuai Zhu , Ping Wu , Cijun Shuai

{"title":"Laser-beam powder bed fusion and post-build annealing of polycrystalline Fe81Ga19 alloys: Microstructure manipulation and magnetostrictive properties","authors":"Chengde Gao , Xiong Yao , Qi Zeng , Wei Tan , Shuaishuai Zhu , Ping Wu , Cijun Shuai","doi":"10.1016/j.intermet.2025.108734","DOIUrl":"10.1016/j.intermet.2025.108734","url":null,"abstract":"<div><div>Magnetostrictive polycrystalline Fe-Ga alloys are gaining increasing attention for boarder practicalities, unfortunately, always facing limitations in magnetostrictive properties hindered by random grain structure and complex phase composition. In this work, an innovative method was established to fabricate massive polycrystalline Fe<sub>81</sub>Ga<sub>19</sub> alloys via laser-beam powder bed fusion (LPBF) followed by post-build annealing treatment, and the magnetostrictive performances of the LPBF-fabricated Fe-Ga alloys annealed at various temperatures (800, 1000, and 1200 °C) were systematically investigated. Microstructural analyses revealed that <001> grain orientation and disordered A2 structure were obtained within the LPBF-fabricated (LPBFed) Fe<sub>81</sub>Ga<sub>19</sub> alloys as a result of the steep temperature gradient and rapid solidification. Furthermore, the post-LPBF annealing treatment promoted the grain growth and release of residual stresses, simultaneously accompanied by intensified oriented texture within the annealed alloys. As a result, the Fe<sub>81</sub>Ga<sub>19</sub> alloy annealed at 1200 °C showed optimal magnetostrictive performances with a magnetostrictive strain of ∼70 ppm and especially a 64 % reduction in saturation field relative to the LPBFed alloy. Moreover, the prepared Fe-Ga alloys also manifested good magnetostrictive dynamic response and desirable soft magnetic properties. In addition, electrochemical tests also indicated accelerated corrosion for the annealed alloys owing to the increased grain sizes. This work may pave a processing base to fabricate structure-tailored polycrystalline magnetostrictive Fe-Ga alloys for diverse applications.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"181 ","pages":"Article 108734"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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