Materials Science and Engineering: A最新文献_第2页

Additive manufacturing of nickel-microalloyed titanium alloy: The significant impact of precipitation of Ti2Ni on mechanical properties

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-25 DOI: 10.1016/j.msea.2025.148116

Ziqi Wang , Yu Pei , Hao Yu , Shilong Liu , Zhihui Xiong , Xuejun Jin , R.D.K. Misra

{"title":"Additive manufacturing of nickel-microalloyed titanium alloy: The significant impact of precipitation of Ti2Ni on mechanical properties","authors":"Ziqi Wang , Yu Pei , Hao Yu , Shilong Liu , Zhihui Xiong , Xuejun Jin , R.D.K. Misra","doi":"10.1016/j.msea.2025.148116","DOIUrl":"10.1016/j.msea.2025.148116","url":null,"abstract":"<div><div>Nickel (Ni) is rarely utilized as an alloying element in conventional titanium (Ti) alloys since the active eutectoid reaction can induce severe elemental segregation and microstructural inhomogeneity, resulting in undesirable mechanical properties. In this work, we adopted selective laser melting (SLM) method to fabricate Ni-microalloyed titanium alloys (Ti-0.4 wt%Ni) effectively addressing the above issues. Nano-scale α′-laths with Ni supersaturation, rather than eutectoid lamellae, were obtained in the as-printed samples since the ultra-fast cooling rate (10<sup>5</sup>–10<sup>8</sup> K/s) can effectively suppress Ni diffusion. Therefore, the microstructural inhomogeneity was improved and the grain size was refined, resulting in an exceptional strength enhancement. Furthermore, we investigated the precipitation behavior of Ti<sub>2</sub>Ni precipitates from α-matrix during aging. Ni tended to segregate near the boundaries of α′-laths, facilitating the formation of Ti<sub>2</sub>Ni precipitates at lath boundaries. Ti<sub>2</sub>Ni precipitates can produce a significant precipitation strengthening effect, but their size and distribution need to be reasonably controlled to avoid the deterioration of mechanical properties. The study developed a novel Ti-Ni binary alloy with homogeneous microstructure and excellent mechanical properties, and demonstrates that only trace additions of Ni can significantly enhance the strength of Ti alloys, providing a useful approach and insights to improve the performance of Ti alloys.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148116"},"PeriodicalIF":6.1,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510419","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

Effect of pre- and post-weld heat treatments on the microstructure and mechanical properties of the rotatory friction welded martensitic steel-soft magnetic alloy joints

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-24 DOI: 10.1016/j.msea.2025.148121

Ashok G.S Nawalkar , Yogesh Singh , Manojkumar S , CH. V. Satyanarayana Raju , Anil Kumar Sundara , Devarapalli Lakshmi Priya , Kumud Kant Mehta

{"title":"Effect of pre- and post-weld heat treatments on the microstructure and mechanical properties of the rotatory friction welded martensitic steel-soft magnetic alloy joints","authors":"Ashok G.S Nawalkar , Yogesh Singh , Manojkumar S , CH. V. Satyanarayana Raju , Anil Kumar Sundara , Devarapalli Lakshmi Priya , Kumud Kant Mehta","doi":"10.1016/j.msea.2025.148121","DOIUrl":"10.1016/j.msea.2025.148121","url":null,"abstract":"<div><div>The current study investigates the microstructural and mechanical property characterization of rotatory friction welded (RFW) joints between martensitic steel (Grade Custom 465) and soft magnetic alloy (Grade Softcomag 49AA) used for actuator application. The alloy Custom 465 has been used in three heat treatment conditions (H950-aging, H1050-aging, and ST-solution-treated) to join the annealed alloy Softcomag 49AA-A. Various welds joined made are (i) Custom 465-H950 vs Softcomag 49AA-A, (ii) Custom 465-H1050 vs Softcomag 49AA-A, and (iii) Custom 465-ST vs Softcomag 49AA-A which have been termed as pre-heat treated samples C1, C2, and C3, respectively. Two other sets of weld joints C4 and C5 are similar to sample C3 but have been subjected to post-weld heat treatments of H950 and H1050, respectively. The hardness of the central weld zone of the samples C1 to C5 is observed to be intermediate between the harnesses of the parent alloys. An abrupt change in hardness is observed near the central weld zones of samples C4 and C5 making the weld joint inferior as compared to samples C1 and C2. Accordingly, the tensile properties of samples C4 and C5 are inferior to samples C1 and C2. The sample C3 displays lowest values of tensile strength and ductility. The significant coarsening of the grains in the HAZ of alloy Softcomag 49AA and the re-precipitation of Ni<sub>3</sub>Ti particles in Custom 465 alloy during the post-weld heat treatment results in sudden hardness variation and inferior tensile properties of samples C4 and C5 across the weld interface. This study proposes joining the Softcomag 49AA with alloy Custom 465 using the RFW technique; however, the post-weld heat treatment is not recommended as it adversely affects the overall mechanical properties of the weld joint.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148121"},"PeriodicalIF":6.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510422","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

An approach to enhance the bending property of quenching and partitioning steel by processing multilayered steel sheet 通过加工多层钢板提高淬火和隔热钢弯曲性能的方法

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-24 DOI: 10.1016/j.msea.2025.148123

Ziqi Wang , Peng Xue , Jieru Yu , Junjie Tang , Bin Hu , Yishuang Yu , Xiaorong Cai , Li Wang , Shilong Liu , Xuejun Jin

引用次数: 0

Improving yield strength and plasticity of high-Mn austenitic steel through texture induced twinning and HDI strengthening

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-24 DOI: 10.1016/j.msea.2025.148106

Zhi Zhao , Pengjie Wang , Xiang Ji , Jimou Zhang , Zhenyu Liu

{"title":"Improving yield strength and plasticity of high-Mn austenitic steel through texture induced twinning and HDI strengthening","authors":"Zhi Zhao , Pengjie Wang , Xiang Ji , Jimou Zhang , Zhenyu Liu","doi":"10.1016/j.msea.2025.148106","DOIUrl":"10.1016/j.msea.2025.148106","url":null,"abstract":"<div><div>In the present paper, four high-Mn austenitic steels with different heterostructures and textures are designed through asynchronous rolling followed by different annealing temperature, the HDI strengthening and contribution of texture evolution on plasticity have been investigated. The yield strength of the specimens without annealing treatment (AR) is measured to be as high as 1123 MPa, with an improvement of over 200 % compared to high-Mn austenitic steels prepared by conventional hot rolling process, and it gradually decreases with the increase in annealing temperature. Unexpectedly, the total elongation of the AR specimen reaches 28.4 %.</div><div>The enhanced yield strength of the AR specimen can be due to the dislocation strengthening and strengthening induced by grain refinement. The density of initial dislocations would be reduced, and grains would gradually coarse during the annealing heat treatment, as a result, the YS and UTS gradually decrease with the increase in annealing temperature. While it is the coupling effect of the enhanced deformation twining in those <100>//RD oriented grains and continuous plastic deformation capacity enhanced by the alternating distribution of Schmidt factor that contribute greatly to the TEL of the AR specimen.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148106"},"PeriodicalIF":6.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529253","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

Tailoring precipitate orientation in an rolled AZ80 plate to promote strength-ductility synergy

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-24 DOI: 10.1016/j.msea.2025.148122

Fan Wu , Ya-nan Chen , Bo Song , Tingting Liu , Risheng Qiu , Ning Guo , Shengfeng Guo

引用次数: 0

Break through the strength-ductility trade-off dilemma in titanium matrix composites via precipitation assisted interface tailoring and solid solution

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-24 DOI: 10.1016/j.msea.2025.148110

Qiong Lu , Ping Liu , Zunyan Xu , Xiaofeng Chen , Peizhong Feng , Caiju Li , Jianhong Yi

{"title":"Break through the strength-ductility trade-off dilemma in titanium matrix composites via precipitation assisted interface tailoring and solid solution","authors":"Qiong Lu , Ping Liu , Zunyan Xu , Xiaofeng Chen , Peizhong Feng , Caiju Li , Jianhong Yi","doi":"10.1016/j.msea.2025.148110","DOIUrl":"10.1016/j.msea.2025.148110","url":null,"abstract":"<div><div>TiC reinforced Ti matrix composites containing C and Si solid solution elements were successfully synthesized via spark plasma sintering (SPS) using the Ti and SiC as the raw materials. It is found that the C and Si solid solution elements can facilitate the dislocation slip by significant change in their respective critical resolved shear stresses and width of α-Ti and β-Ti. When the SiC addition is up to 0.5 wt% and 1 wt%, the TiC reinforcements were in-situ formed. The microstructure characterizations reveal the orientation relationship between TiC and α-Ti in TiC/Ti composite, which has the robust interfacial bonding. Combined with the effective strengthening mechanisms of C, Si solid solution and TiC with well bonded TiC/Ti interface, the highest ultimate tensile strength (1309 MPa) together with high ductility (5.1 %) can be achieved for 1SiC composite. The improved yield strength of the composites was calculated on the basis of several well-known strengthening mechanisms, such as grain refinement, solid solution, load transfer, thermal mismatch, dislocation strengthening. This strategy not only sheds light on the understanding of the strength-ductility synergy of titanium matrix composites, but also offers an available pathway to design ultra-strong and ductile composites.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148110"},"PeriodicalIF":6.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510407","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

Microstructure, mechanical properties, and wear behavior of Al5083/GNPs nanocomposites prepared by powder metallurgy method

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-24 DOI: 10.1016/j.msea.2025.148120

Saeed Keshavarz , Hamed Asgharzadeh , Mohammad Farvizi

{"title":"Microstructure, mechanical properties, and wear behavior of Al5083/GNPs nanocomposites prepared by powder metallurgy method","authors":"Saeed Keshavarz , Hamed Asgharzadeh , Mohammad Farvizi","doi":"10.1016/j.msea.2025.148120","DOIUrl":"10.1016/j.msea.2025.148120","url":null,"abstract":"<div><div>This study focuses on the developing of Al5083 aluminum alloy matrix nanocomposites reinforced with graphene nanoplatelets (GNPs) to achieve a controlled microstructure, enhanced mechanical properties, and superior wear resistance. Nanocomposites with varying GNP concentrations (0.25, 0.5, 0.75, and 1 wt%) were fabricated using high-energy mechanical alloying (HEMA) followed by spark plasma sintering (SPS). The microstructure, morphology, chemical composition, and phase analysis were characterized using XRD, SEM, TEM/HRTEM, EDS, and Raman spectroscopy. Mechanical properties were evaluated through microhardness and compression tests, while wear resistance was assessed using the pin-on-disk method. The results indicate that HEMA and SPS processing leads to nearly complete alloying and uniform dispersion of GNPs. Adding of GNPs significantly improves the microhardness, compressive strength, and wear resistance of Al5083 due to strong Al/GNPs interfacial bonding and the absence of detrimental phases like Al<sub>4</sub>C<sub>3</sub>. The nanocomposite with 0.5 wt% GNPs exhibits the most uniform graphene distribution, resulting in optimal mechanical and wear performance. Compared to the unreinforced Al5083 alloy, this composite demonstrates a 36 % increase in microhardness, a 52 % improvement in compressive strength, and an 80 % reduction in wear rate. However, higher GNP concentrations results in the agglomeration, which negatively impacts the mechanical and tribological properties. The role of GNPs on the strengthening and wear mechanisms is discussed.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148120"},"PeriodicalIF":6.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519895","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

Dynamic response in high strain rate deformation of stainless steel 316L fabricated by selective laser melting

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-23 DOI: 10.1016/j.msea.2025.148105

Yun Yang , Zhongpeng Zheng , Yuchao Bai , Wen Feng Lu , Hao Wang

{"title":"Dynamic response in high strain rate deformation of stainless steel 316L fabricated by selective laser melting","authors":"Yun Yang , Zhongpeng Zheng , Yuchao Bai , Wen Feng Lu , Hao Wang","doi":"10.1016/j.msea.2025.148105","DOIUrl":"10.1016/j.msea.2025.148105","url":null,"abstract":"<div><div>This paper investigates the dynamic mechanical response of stainless steel 316L fabricated via selective laser melting under high strain rate deformation. The analysis focuses on the compressive deformation behaviour with respect to different printing strategies with scanning rotation angles of 0°, 90°, and 67°, under three heat treatment conditions. The study focuses on microstructural evolution and compressive deformation mechanisms at high strain rates. Selective laser melted SS316L exhibits sensitivity to both high strain rate and elevated temperature, comparable to that of wrought SS316L in high strain rate deformation. At a fixed strain, the observed rise in stress with an increasing strain rate suggests the strain hardening phenomena in high-strain rate deformation. The flow stress decreases significantly with rise in temperature due to the thermal-softening effect. With the increase in temperature, more recrystallized grains are formed and the viscosity of the material decreases. The samples with a 0° rotation display deformation in the direction of the laser scanning due to the presence of a pronounced local texture morphology on the top surface, leading to anisotropic deformation in the samples with uni-directional scanning, and the elliptical shape of samples are formed after high strain rate compression. Systematic experiments yielded a complete set of material constants for the Johnson-Cook material constitutive model, which describes the connection between flow stress and plastic strain in the presence of severe deformation, large strain rates and high temperatures.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148105"},"PeriodicalIF":6.1,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510408","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

Tungsten particle-reinforced 316L steel fabricated by laser melting deposition: Microstructure and mechanical properties

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-22 DOI: 10.1016/j.msea.2025.148102

Yiping Sun , Bin Wang , Yongpeng Ren , Chunlei Li , Jianbo Lei , Songpeng Zhang

{"title":"Tungsten particle-reinforced 316L steel fabricated by laser melting deposition: Microstructure and mechanical properties","authors":"Yiping Sun , Bin Wang , Yongpeng Ren , Chunlei Li , Jianbo Lei , Songpeng Zhang","doi":"10.1016/j.msea.2025.148102","DOIUrl":"10.1016/j.msea.2025.148102","url":null,"abstract":"<div><div>316L steel manufactured by laser melting deposition (LMD) has extensive uses in industry. Nevertheless, relatively low wear resistance and tensile strength limit its engineering applications. In this study, tungsten (W) because of high hardness and strength properties is used as a reinforcing phase to improve these weaknesses of 316L steel. To assess comprehensively the impact of W content on 316L steel, 316L/W composite coatings with different W contents (8 wt%, 16 wt% and 24 wt%) were prepared by LMD. The microstructure and phase composition were characterized utilizing scanning electron microscope (SEM), transmission electron microscope (TEM) and X-ray diffractometry (XRD), respectively. The addition of W particles accelerates the cooling and solidification rate of the molten pool and hinders the growth of dendrites, thereby refining the grains. In addition, the microhardness, wear and mechanical tensile properties were also studied. The findings show that the microhardness gradually increases as the addition of W content. Meanwhile, the yield strength (YS) and ultimate tensile strength (UTS) are also improved, but this is accompanied by the sacrifice of elongation. When the W content is 16 wt%, the composite coating has the optimal wear resistance, and the wear rate is reduced to 6.11 % of the 316L alloy coating.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148102"},"PeriodicalIF":6.1,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488744","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

Microstructure, stored energy, and stability of H/He-filled nanocavities in low temperature irradiated Inconel 718

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-22 DOI: 10.1016/j.msea.2025.148111

Timothy G. Lach , Kinga A. Unocic , Maxim N. Gussev , Amy J. Godfrey , Weicheng Zhong , Hsin Wang , Wei Lu , Elvis E. Dominguez-Ontiveros , David A. McClintock

{"title":"Microstructure, stored energy, and stability of H/He-filled nanocavities in low temperature irradiated Inconel 718","authors":"Timothy G. Lach , Kinga A. Unocic , Maxim N. Gussev , Amy J. Godfrey , Weicheng Zhong , Hsin Wang , Wei Lu , Elvis E. Dominguez-Ontiveros , David A. McClintock","doi":"10.1016/j.msea.2025.148111","DOIUrl":"10.1016/j.msea.2025.148111","url":null,"abstract":"<div><div>The microstructure, trapped transmutation gases, stored energy, and mechanical behavior of samples from an irradiated Inconel 718 proton beam window were characterized using transmission electron microcopy, thermal desorption spectrometry (TDS), differential scanning calorimetry (DSC), and tensile testing. In the as-irradiated condition the microstructure contained a high number density of 1–3 nm gas-filled nanocavities. Emissions of trapped gases, H and He, during TDS correlated with peaks of the energy release curves from DSC examinations, which suggest these gases were likely stored in highly stable defect traps. The stored energy from radiation damage saturated at doses of a few dpa and did not increase with increasing radiation dose, but the amount of stored H and He increased with increasing dose. Effects of post-irradiation annealing were studied as well. After exposure to 700 °C, the nanocavities grew only slightly to 2–4 nm in diameter, but after exposure to 900 °C, the cavities grew to 10–20 nm in diameter and electron energy-loss spectroscopy showed these cavities contained a core of He surrounded by a shell of H. This study demonstrated that the irradiation defect structures containing H and He were remarkably stable during irradiation and after exposure up to 700 °C. The effect of the irradiation temperature, defect mobility, and interaction of H, He, and irradiation defects on mechanical behavior provides insight into the processes responsible for the unusual recovery in ductility with increasing radiation dose observed in Inconel 718 after high energy proton and spallation neutron irradiation.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148111"},"PeriodicalIF":6.1,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519892","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