Acta Metallurgica Sinica-English Letters最新文献_第9页

Macroscopic and Microscopic Residual Stresses in Nickel-Aluminum Bronze Matrix Composite Surface Deposits Manufactured via Laser Melt Injection 激光熔融注射制备镍铝青铜基复合材料表面镀层的宏观和微观残余应力

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-25 DOI: 10.1007/s40195-025-01829-x

X. X. Zhang, E. Walz, A. Langebeck, J. Rebelo Kornmeier, A. Kriele, V. Luzin, M. Adveev, A. Bohlen, M. Hofmann

{"title":"Macroscopic and Microscopic Residual Stresses in Nickel-Aluminum Bronze Matrix Composite Surface Deposits Manufactured via Laser Melt Injection","authors":"X. X. Zhang, E. Walz, A. Langebeck, J. Rebelo Kornmeier, A. Kriele, V. Luzin, M. Adveev, A. Bohlen, M. Hofmann","doi":"10.1007/s40195-025-01829-x","DOIUrl":"10.1007/s40195-025-01829-x","url":null,"abstract":"<div><p>Wear is a prevalent issue across various industries. Spherical fused tungsten carbide (sFTC) reinforced nickel-aluminum bronze (NAB) matrix composite surface deposits have shown remarkable potential in mitigating wear by approximately 80%. However, the performance of these sFTC/NAB composite surface deposits is determined by their residual stress state, and the precise macroscopic and microscopic residual stresses within these composites have yet to be clearly established. To address this gap, we employed neutron diffraction to measure the residual stresses in the sFTC/NAB composite surface deposits and re-melted NAB samples produced via laser melt injection. Significant residual stresses were determined. The maximum tensile macro residual stress appears approximately 1–1.5 mm below the composite layer. Residual stresses accumulate with an increasing number of laser process tracks. The maximum tensile macro residual stress in the three-track samples reaches about 350 MPa. Preheating the base plate significantly reduces the levels of macroscopic residual stress. The WC phase displayed significant compressive thermal misfit residual stress magnitude, while the Cu matrix exhibited tensile thermal misfit residual stress. Preheating the base plate does not reduce microscopic thermal misfit residual stress levels. In addition, a finite element model was built to investigate temperature and residual stresses in the re-melted NAB samples. The predicted temperature history and residual stress agree with the experimental results.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 4","pages":"570 - 586"},"PeriodicalIF":2.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830775","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

Complexions-Dominated Plastic Transmission and Mechanical Response in Cu-Based Nanolayered Composites 配位主导的cu基纳米层复合材料的塑性传输和力学响应

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-23 DOI: 10.1007/s40195-025-01822-4

Zhe Yan, Qi An, Lichen Bai, Ruifeng Zhang, Mingyu Gong, Shijian Zheng

{"title":"Complexions-Dominated Plastic Transmission and Mechanical Response in Cu-Based Nanolayered Composites","authors":"Zhe Yan, Qi An, Lichen Bai, Ruifeng Zhang, Mingyu Gong, Shijian Zheng","doi":"10.1007/s40195-025-01822-4","DOIUrl":"10.1007/s40195-025-01822-4","url":null,"abstract":"<div><p>Thermodynamically stable and ultra-thin “phase” at the interface, known as complexions, can significantly improve the mechanical properties of nanolayered composites. However, the effect of complexions features (e.g., crystalline orientation, crystalline structure and amorphous composition) on the plastic deformation remains inadequately investigated, and the correlation with the plastic transmission and mechanical response has not been fully established. Here, using atomistic simulations, we elucidate the different complexions-dominated plastic transmission and mechanical response. Complexions can alter the preferred slip system of dislocation nucleation, depending on the Schmid factor and interface structure. After nucleation, the dislocation density exhibits an inverse correlation with the stress magnitude, because the number of dislocations influences the initiation of plastic deformation and determines the stress release. For crystalline complexions with different structures and orientations, the ability of dislocation transmission is mainly dependent on the continuity of the slip system. The plastic transmission can easily proceed and exhibits relatively low flow stress when the slip system is well-aligned. In the case of amorphous complexions with different compositions, compositional variations impact the atomic percentage of shear transformation zones after loading, resulting in different magnitudes of plastic deformation. When smaller plastic deformation is produced, less stress can be released contributing to higher flow stress. These findings reveal the role of the complexions on plasticity behavior and provide valuable insights for the design of nanolayered composites.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 4","pages":"597 - 613"},"PeriodicalIF":2.9,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830762","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

Improved Coercivity in Cu-Doped SmCo5 Nanocomposite Powders Obtained by Low Temperature Annealing 低温退火提高cu掺杂SmCo5纳米复合粉末矫顽力

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-21 DOI: 10.1007/s40195-025-01827-z

Longfei Ma, Yingzhengsheng Huang, Wei Quan, Qiang Zheng, Juan Du

{"title":"Improved Coercivity in Cu-Doped SmCo5 Nanocomposite Powders Obtained by Low Temperature Annealing","authors":"Longfei Ma, Yingzhengsheng Huang, Wei Quan, Qiang Zheng, Juan Du","doi":"10.1007/s40195-025-01827-z","DOIUrl":"10.1007/s40195-025-01827-z","url":null,"abstract":"<div><p>In this work, nanocrystalline SmCo<sub>5</sub>–Cu nanocomposite powders were fabricated from the ball-milled amorphous matrix by crystallization annealing which is lower than the traditional sintering temperature ~ 1000 °C for bulk SmCo<sub>5</sub> bulk magnets. Annealed Cu-doped SmCo<sub>5</sub> powders have a higher coercivity compared to that of Cu-free SmCo<sub>5</sub> one due to the combined effects of refinement effect of grain size and the pinning effect induced by Cu doping. The peak of coercivity (<i>H</i><sub>c</sub>) is located at 600 °C for annealed Cu-doped SmCo<sub>5</sub>, which is ascribed to the improved pinning field. The pinning effect became reduced when the annealing was done at even higher temperatures. More importantly, the best comprehensive magnetic properties, including a maximum magnetic energy product (<i>BH</i>)<sub>max</sub> of 12.2 MGOe together with a coercivity of 31.8 kOe and a remanence of 64.3 emu/g, could be achieved for SmCo<sub>5</sub>-3 wt% Cu by low temperature annealing. These results demonstrate that isotropic Cu-doped SmCo<sub>5</sub> nanocrystalline powders are promising precursors for the fabrication of high-performance bulk magnets.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 4","pages":"587 - 596"},"PeriodicalIF":2.9,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830934","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

First Principles Study of CoSb3/Ni Interface Structure and Mechanical Properties CoSb3/Ni界面结构及力学性能第一性原理研究

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-21 DOI: 10.1007/s40195-025-01830-4

Cuicui Shu, Pengcheng Zhai, Xiege Huang, Sergey I. Morozov, Guodong Li, Zhiyuan Pan

{"title":"First Principles Study of CoSb3/Ni Interface Structure and Mechanical Properties","authors":"Cuicui Shu, Pengcheng Zhai, Xiege Huang, Sergey I. Morozov, Guodong Li, Zhiyuan Pan","doi":"10.1007/s40195-025-01830-4","DOIUrl":"10.1007/s40195-025-01830-4","url":null,"abstract":"<div><p>Mechanical stability is critically essential in the design of thermoelectric devices. In this study, we employed first-principles calculations based on density functional theory to investigate the failure mechanisms at the CoSb<sub>3</sub>/Ni interface. Our findings reveal that the CoSb<sub>3</sub>(100)/Ni(100) and CoSb<sub>3</sub>(100)/Ni(111)_1 configurations are favorable interface structures. The ideal tensile strength of the CoSb<sub>3</sub>/Ni interface is markedly lower than that of bulk CoSb<sub>3</sub>, which can be attributed to structural rearrangements near the interface that weaken the strength of the Co–Sb bonds. Interface failure occurs in CoSb<sub>3</sub>, where covalent Sb–Sb bonds exhibit a tendency to soften prior to the ionic Co–Sb bonds due to their comparatively lower rigidity. Consequently, the breakage of the Co–Sb bonds leads to interface failure. Structural failure at both single-layer Sb_CoSb<sub>3</sub>(100)/Ni(100) and single-layer Sb_CoSb<sub>3</sub>(100)/Ni(111)_1 interfaces results from ruptures in intermediate Co–Sb bonds in CoSb<sub>3</sub>, whereas failures at double-layer Sb_CoSb<sub>3</sub>(100)/Ni(100) and double-layer Sb_CoSb<sub>3</sub>(100)/Ni(111)_1 interfaces stem from fractures in the uppermost Co–Sb bonds. This behavior is primarily driven by atomic rearrangements near the single-layer Sb_CoSb<sub>3</sub> interface, which promote bond formation between Sb–Ni and Co–Ni, thereby enhancing stability within the superstructure of CoSb<sub>3</sub>. This study will provide a theoretical basis for the interface design of thermoelectric devices.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 5","pages":"793 - 802"},"PeriodicalIF":2.9,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892621","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

A High-Strength TiB2-Modified Al–Si–Mg–Zr Alloy Fabricated by Laser Powder-Bed Fusion 激光粉末床熔合制备高强度tib2改性Al-Si-Mg-Zr合金

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-18 DOI: 10.1007/s40195-025-01825-1

Yaoxiang Geng, Keying Lv, Chunfeng Zai, Zhijie Zhang, Anil Kunwar

{"title":"A High-Strength TiB2-Modified Al–Si–Mg–Zr Alloy Fabricated by Laser Powder-Bed Fusion","authors":"Yaoxiang Geng, Keying Lv, Chunfeng Zai, Zhijie Zhang, Anil Kunwar","doi":"10.1007/s40195-025-01825-1","DOIUrl":"10.1007/s40195-025-01825-1","url":null,"abstract":"<div><p>To increase the strength of the laser powder-bed fusion (LPBF) Al–Si-based aluminum alloy, TiB<sub>2</sub> ceramic particles were selected to be mixed with high-Mg content Al–Si–Mg–Zr powder, and then a novel TiB<sub>2</sub>/Al–Si–Mg–Zr composite was fabricated using LPBF. The results indicated that a dense sample with a maximum relative density of 99.85% could be obtained by adjusting the LPBF process parameters. Incorporating TiB<sub>2</sub> nanoparticles enhanced the powder's laser absorption rate, thereby raising the alloy's intrinsic heat treatment temperature and consequently facilitating the precipitation of Si and <i>β</i>ʺ nanoparticles in the <i>α</i>-Al cells. Moreover, the rapid cooling process during LPBF resulted in numerous alloying elements with low-stacking fault energy dissolving in the <i>α</i>-Al matrix, thus promoting the formation of the 9R phase. After a 48 h direct aging treatment at 150 °C, the strength of the alloy slightly increased due to the increase of nanoprecipitates. Both yield strength and ultimate tensile strength of the LPBF TiB<sub>2</sub>/Al–Si–Mg–Zr alloy were significantly higher than that of other LPBF TiB<sub>2</sub>-modified aluminum alloys with external addition.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 4","pages":"542 - 554"},"PeriodicalIF":2.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830907","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

Anisotropy Evolution of Tensile Properties in Laser Powder Bed Fusion-Fabricated Inconel 625 Alloy at High Temperature 激光粉末床熔融法制备Inconel 625合金高温拉伸性能的各向异性演化

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-18 DOI: 10.1007/s40195-025-01828-y

Jiaqing Liu, Libo Zhou, Zeai Peng, Boyi Chen, Yijie Tan, Jian Chen, Weiying Huang, Cong Li

{"title":"Anisotropy Evolution of Tensile Properties in Laser Powder Bed Fusion-Fabricated Inconel 625 Alloy at High Temperature","authors":"Jiaqing Liu, Libo Zhou, Zeai Peng, Boyi Chen, Yijie Tan, Jian Chen, Weiying Huang, Cong Li","doi":"10.1007/s40195-025-01828-y","DOIUrl":"10.1007/s40195-025-01828-y","url":null,"abstract":"<div><p>This work investigated the anisotropy tensile properties of Inconel 625 alloy fabricated by laser powder bed fusion (LPBF) under various tests temperature, focusing the anisotropy evolution during the high temperature. The microstructure contained columnar grains with (111) texture in the vertical plane (90° sample), while a large equiaxed grain with (100) texture was produced in the horizontal plane (0° sample). As for 45° sample, a large number of equiaxed grains and a few columnar grains with (111) texture can be observed. The sample produced at a 0° orientation demonstrates the highest tensile strength, whereas the 90° sample exhibits the greatest elongation. Conversely, the 45° sample displays the least favorable overall performance. As the tests temperature increased from room temperature to 600 °C, the anisotropy rate of ultimate tensile strength, yield strength and ductility between 0° and 45° samples, decreased from 8.98 to 6.96%, 2.36 to 1.28%, 19.93 to 12.23%, as well as between 0° and 90° samples decreased from 4.87 to 4.03%, 11.88 to 7.21% and 14.11 to 6.89%, respectively, because of the recovery of oriented columnar grains.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 4","pages":"555 - 569"},"PeriodicalIF":2.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830856","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 CeO2 on the H2O/NaCl-Induced Corrosion Behavior of Ni-Co Coating at 650 °C CeO2对650℃Ni-Co涂层H2O/ nacl腐蚀行为的影响

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-18 DOI: 10.1007/s40195-025-01818-0

Yifei Gao, Peng Zhang, Pan Ren, Yingfei Yang, Guofeng Han, Wenbo Du, Wei Li, Qiwei Wang

引用次数: 0

Simultaneously Enhanced Strength and Fracture Resistance in HfNbTaTiZr Refractory High-Entropy Alloy at Higher Strain Rate 同时提高高应变速率下HfNbTaTiZr难熔高熵合金的强度和抗断裂性能

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-14 DOI: 10.1007/s40195-025-01826-0

Hong Chen, Ruitao Qu, Haotian Ma, Kexing Song, Feng Liu

{"title":"Simultaneously Enhanced Strength and Fracture Resistance in HfNbTaTiZr Refractory High-Entropy Alloy at Higher Strain Rate","authors":"Hong Chen, Ruitao Qu, Haotian Ma, Kexing Song, Feng Liu","doi":"10.1007/s40195-025-01826-0","DOIUrl":"10.1007/s40195-025-01826-0","url":null,"abstract":"<div><p>The effects of strain rate on tensile properties and fracture behavior of HfNbTaTiZr refractory high-entropy alloy (RHEA) were investigated. With the increase of strain rate in the range from 0.0001 to 0.1 s<sup>−1</sup>, the yield strength increases from 740 to 825 MPa, demonstrating a strain rate sensitivity coefficient of 0.0173. Notably, while the uniform elongation diminished with rising strain rates, the fracture elongation of the RHEA remained constant at ~ 43%, suggesting an enhanced non-uniform elongation and an improved resistance to tensile fracture. Single-edge notch tension test further proves that the notch toughness increases at elevated loading rates. The complete work-hardening rate curves were plotted, and the work-hardening ability of the RHEA was found not decreasing significantly after necking, especially at high strain rate. The fracture of tensile samples across all the strain rates was dominated by void growth and coalesce, with dimples on the fracture surface being smaller at higher strain rates. This work reveals an unconventional increase in fracture resistance at higher strain rates, further indicating that ductile RHEAs may possess superior potential for use in structural applications subjected to high strain rate loading.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 4","pages":"529 - 541"},"PeriodicalIF":2.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830848","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

Low Thermal Conductivity Contributes to High Thermoelectric Performance: A Review 低导热系数有助于高热电性能：综述

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-08 DOI: 10.1007/s40195-025-01817-1

Haolin Ye, Chongjian Zhou

{"title":"Low Thermal Conductivity Contributes to High Thermoelectric Performance: A Review","authors":"Haolin Ye, Chongjian Zhou","doi":"10.1007/s40195-025-01817-1","DOIUrl":"10.1007/s40195-025-01817-1","url":null,"abstract":"<div><p>Thermoelectric materials directly convert thermal energy into electrical energy, demonstrating significant potential for energy and environmental applications. Ideally, high-performance thermoelectric materials should exhibit ultra-low lattice thermal conductivity and high charge carrier mobility akin to a phonon-glass electron-crystal. However, the strong coupling between electronic transport and phonon transport presents considerable challenges in enhancing thermoelectric performance, with the independence of lattice thermal conductivity being the key to decoupling these processes. This review emphasizes the critical role of low lattice thermal conductivity in enhancing the performance of thermoelectric materials. It begins by exploring the low thermal conductivity features arising from the intrinsic structures of these materials, including anharmonic structures and super-nanostructures. We then propose innovative strategies for tuning thermal conductivity through phase engineering. Additionally, we review recent advancements in defect engineering aimed at reducing lattice thermal conductivity in the thermoelectric field. Finally, we discuss emerging developments, applications, and challenges in the field of thermoelectric materials.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 5","pages":"720 - 732"},"PeriodicalIF":2.9,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892654","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

Experimental and Molecular Dynamics Simulation Study of Chemical Short-Range Order in CrCoNi Medium-Entropy Alloy Fabricated Using Laser Powder Bed Fusion 激光粉末床熔合法制备CrCoNi中熵合金化学近程序的实验与分子动力学模拟研究

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-01-28 DOI: 10.1007/s40195-024-01812-y

Bolun Han, Kai Feng, Zhuguo Li, Pan Liu, Yakai Zhao, Junnan Jiang, Yiwei Yu, Zhiyuan Wang, Kaifeng Ji

{"title":"Experimental and Molecular Dynamics Simulation Study of Chemical Short-Range Order in CrCoNi Medium-Entropy Alloy Fabricated Using Laser Powder Bed Fusion","authors":"Bolun Han, Kai Feng, Zhuguo Li, Pan Liu, Yakai Zhao, Junnan Jiang, Yiwei Yu, Zhiyuan Wang, Kaifeng Ji","doi":"10.1007/s40195-024-01812-y","DOIUrl":"10.1007/s40195-024-01812-y","url":null,"abstract":"<div><p>CrCoNi medium entropy alloy (MEA) fabricated by laser powder bed fusion (LPBF) benefits from its distinctive hierarchical microstructure and has great potential as a structural material. However, while the intriguing chemical short-range order (CSRO) widely exists in high/medium entropy alloys, its formation in the LPBF-built samples still lacks enough understanding. In this study, we verified its existence by fine transmission electron microscopy characterizations and utilized hybrid Monte Carlo/molecular dynamics simulations to investigate the features and effects of CSRO in LPBF-built CrCoNi MEA (AM model). Results showed that the CSRO fraction and the stacking fault energy of the AM model lie between those of the well-annealed and random solid solution counterparts. Among these models, the AM model exhibited the best strain hardening ability due to its highest capability to generate and store sessile dislocations. The results agreed well with existing data and provide guidance to the future development of LPBF-built CrCoNi MEA.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 6","pages":"961 - 968"},"PeriodicalIF":3.9,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170968","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