Acta Metallurgica Sinica-English Letters最新文献_第10页

Thermo-Kinetic Understanding of the Correlation Between Austenite Reverse Transformation and Mechanical Properties for Medium Manganese Steel 中锰钢奥氏体相变与力学性能相关性的热力学研究

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-04-05 DOI: 10.1007/s40195-025-01849-7

Yong Hou, Haiyu Liu, Yao Wang, Yu Zhang, Yayun Zhang, Feng Liu

{"title":"Thermo-Kinetic Understanding of the Correlation Between Austenite Reverse Transformation and Mechanical Properties for Medium Manganese Steel","authors":"Yong Hou, Haiyu Liu, Yao Wang, Yu Zhang, Yayun Zhang, Feng Liu","doi":"10.1007/s40195-025-01849-7","DOIUrl":"10.1007/s40195-025-01849-7","url":null,"abstract":"<div>How to describe the austenite reverse transformation (ART) has always been considered as a key problem of controlling microstructures and mechanical properties in high-strength steels. So far, numerous studies have been conducted, unfortunately, without fully considering diffusion of elements, interface migration, and interaction between trans-interface diffusion and interface migration, as well as synergy of thermodynamic and kinetic for interfacial migration. A more flexible modeling for the ART is herein developed using thermodynamic extremal principle, where the concept of trans-interface diffusion in two steps, i.e., from the parent phase to the interface and from the interface to the product phase, as well as the Gibbs energy balance approach, was introduced to predict the behavior of interface migration and element trans-interface diffusion within the migrating interface. Subsequently, the thermodynamic driving force ΔG and the effective kinetic energy barrier Qeff for the ART were also analytically performed, as well as a unified expression for so-called generalized stability (GS). It is demonstrated that the higher driving force in the ART generally results in the increased yield strength, while the larger GS tends to yield improved uniform elongation, thus forming a correspondence between the thermo-kinetics trade-off and the strength-ductility trade-off. Applying a proposed criterion of high ΔG-high GS, the present model can be adopted to design the ART, which will produce the austenite microstructure with high strength and high plasticity, as evidenced by the current experiments.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 7","pages":"1195 - 1206"},"PeriodicalIF":3.9,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161844","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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Effect of Post Weld Heat Treatment on Residual Stress and Mechanical Properties of 106 mm Thick TC4 Titanium Alloy Electron Beam Welded Joints 焊后热处理对106 mm厚TC4钛合金电子束焊接接头残余应力和力学性能的影响

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-04-03 DOI: 10.1007/s40195-025-01851-z

Yunlu Jiang, Lihui Wu, Dingrui Ni, Hongbo Zhao, Xu Han, Peng Xue, Bolv Xiao, Zongyi Ma

{"title":"Effect of Post Weld Heat Treatment on Residual Stress and Mechanical Properties of 106 mm Thick TC4 Titanium Alloy Electron Beam Welded Joints","authors":"Yunlu Jiang, Lihui Wu, Dingrui Ni, Hongbo Zhao, Xu Han, Peng Xue, Bolv Xiao, Zongyi Ma","doi":"10.1007/s40195-025-01851-z","DOIUrl":"10.1007/s40195-025-01851-z","url":null,"abstract":"<div>This study analyzed through-thickness distribution of residual stress in a 106 mm ultra-thick TC4 titanium alloy electron beam welded (EBW) joint after post weld heat treatment (PWHT) using X-ray diffraction (XRD) and deep-hole drilling (DHD) methods, and investigated the microstructure and mechanical properties. During the PWHT at 600 °C, a phase transformation (β → α) occurred in the EBW joint and affected the residual stress distribution and mechanical properties. The surface residual stress was mainly compressive stress, while the internal residual stress was mainly tensile stress in the welded joint. For the as-welded joint, the absolute value of surface residual stress was higher than the absolute value of internal residual stress. After PWHT, the residual stress in the treated joint was substantially reduced compared to the as-welded joint, particularly the surface stress, which relieved from − 425 to − 90 MPa. However, the residual stress relief effect had minimal positive impact on the internal region at 600 °C. PWHT resulted in a shift of the joint fracture location from the fusion zone (FZ) to the base metal (BM), and therefore exerted no noticeable effect on the joint strength, but increased the joint elongation significantly. This study provides valuable insights into the regulation of residual stress distribution of ultra-thick titanium alloy plates.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 7","pages":"1083 - 1094"},"PeriodicalIF":3.9,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161061","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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Preface to the Special Issue: Thermoelectric Materials and Devices 特刊前言：热电材料与器件

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-04-03 DOI: 10.1007/s40195-025-01850-0

Gangjian Tan

引用次数: 0

Three-Point Bending Deformation Behavior of a High Plasticity Mg–2.6Er–0.6Zr Alloy Sheet 高塑性Mg-2.6Er-0.6Zr合金板材三点弯曲变形行为

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-04-01 DOI: 10.1007/s40195-025-01843-z

Yuanxiao Dai, Yue Zhang, Mei Wang, Jie Liu, Yaobo Hu, Bin Jiang

{"title":"Three-Point Bending Deformation Behavior of a High Plasticity Mg–2.6Er–0.6Zr Alloy Sheet","authors":"Yuanxiao Dai, Yue Zhang, Mei Wang, Jie Liu, Yaobo Hu, Bin Jiang","doi":"10.1007/s40195-025-01843-z","DOIUrl":"10.1007/s40195-025-01843-z","url":null,"abstract":"<div>Bending is a crucial deformation process in metal sheet forming. In this study, the microstructural evolution of a highly ductile Mg–Er–Zr alloy sheet was examined in various bending regions under different bending strains using electron backscatter diffraction and optical microscopy. The results show that the Mg–Er–Zr extruded sheet has excellent bending properties, with a failure bending strain of 39.3%, bending yield strength, and ultimate bending strength of 75.1 MPa and 250.5 MPa, respectively. The exceptional bending properties of the Mg–Er–Zr extruded sheets are primarily due to their fine grain size and the formation of rare-earth (RE) textures resulting from Er addition. Specifically, the in-grain misorientation axes (IGMA) and the twinning behaviors in various regions of the specimen during bending were thoroughly analyzed. Due to the polarity of the tensile twins and their low activation stress, a significant number of tensile twins are activated in the compression zone to regulate plastic deformation. The addition of Er weakens the basal texture of the sheet and reduces the critical resolved shear stress difference between non-basal slip and basal slip. Consequently, in the tensile zone, the basal and non-basal slips co-operate to coordinate the plastic deformation, effectively impeding crack initiation and propagation, and thereby enhancing the bending toughness of the Mg–Er–Zr sheet.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 7","pages":"1109 - 1126"},"PeriodicalIF":3.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160628","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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Impact of CuFeS2 on the Thermoelectric Performance of SnTe CuFeS2对SnTe热电性能的影响

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-28 DOI: 10.1007/s40195-025-01831-3

Baocheng Yuan, Yi Wen, Lei Wang, Zhihao Li, Hong-Chao Wang, Cheng Chang, Li-Dong Zhao

引用次数: 0

Critical Role of Intermetallic Particles in the Corrosion of 6061 Aluminum Alloy and Anodized Aluminum Used in Semiconductor Processing Equipment 金属间颗粒在6061铝合金和半导体加工设备用阳极化铝腐蚀中的关键作用

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-28 DOI: 10.1007/s40195-025-01841-1

Yang Zhao, Bo He, Jinliang Yang, Yongxiang Liu, Tao Zhang, Fuhui Wang

{"title":"Critical Role of Intermetallic Particles in the Corrosion of 6061 Aluminum Alloy and Anodized Aluminum Used in Semiconductor Processing Equipment","authors":"Yang Zhao, Bo He, Jinliang Yang, Yongxiang Liu, Tao Zhang, Fuhui Wang","doi":"10.1007/s40195-025-01841-1","DOIUrl":"10.1007/s40195-025-01841-1","url":null,"abstract":"<div>The effect of intermetallic particles on the corrosion of 6061 aluminum alloy and its coating used in semiconductor processing systems was systematically studied via liquid and gas experiments and micromorphology characterization. The results revealed that a huge difference of corrosion resistance between imported and domestic 6061 aluminum alloys in HCl solution and gas acid mist experiments mainly was attributed to the different size and amount of Al15(Fe,Mn)3Si2. The corrosion resistance of domestic 6061 alloy in dry/wet semiconductor electronic special gas environments was worse than that of imported aluminum alloy, and there are great differences in the corrosion mechanism of 6061 alloy caused by the second phase in the two dry/wet environments. And the corrosion resistance of the hard anodized alumina film was closely related to the microscopic morphology of holes. The vertical and elongated α-Al15(Mn,Fe)3Si2 phase was formed in the rolled aluminum alloy that has been rolled perpendicular to the surface of the substrate. Compared to the horizontal long hole, the longitudinal long holes generated by the vertical α-Al15(Mn,Fe)3Si2 phase will enable the corrosive medium to reach the substrate rapidly, which significantly weakens the corrosion resistance of the hard anodized film.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 6","pages":"904 - 924"},"PeriodicalIF":3.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171424","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 and Mechanical Properties of Yb-Containing AZ80 Cast Alloys 含钇AZ80铸造合金的组织与力学性能

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-28 DOI: 10.1007/s40195-025-01835-z

Qi Zhou, Yufeng Xia, Yu Duan, Baihao Zhang, Yuqiu Ye, Peitao Guo, Lu Li

{"title":"Microstructure and Mechanical Properties of Yb-Containing AZ80 Cast Alloys","authors":"Qi Zhou, Yufeng Xia, Yu Duan, Baihao Zhang, Yuqiu Ye, Peitao Guo, Lu Li","doi":"10.1007/s40195-025-01835-z","DOIUrl":"10.1007/s40195-025-01835-z","url":null,"abstract":"<div>The microstructural evolution and mechanical properties of Mg–8.0Al–xYb–0.5Zn (wt%, x = 0, 1, 2) cast alloys were investigated. With increasing Yb content, a significant grain refinement was observed, accompanied by the continuous refinement and fragmentation of the initial β-Mg17Al12 phase network. Concurrently, the Al3Yb phase formed and coarsened. Calculations including formation enthalpy and lattice misfit, confirm that the Al3Yb phase, which nucleates prior to the α-Mg and β-Mg17Al12 phases and exhibits a low lattice misfit with their low-index planes, serves as an effective heterogeneous nucleation site, significantly contributing to the observed microstructural refinement. Furthermore, Yb addition fundamentally suppresses constitutional supercooling by consuming Al atoms, which possess a high growth restriction factor, for the formation of Al–Yb phases. Subsequent tensile testing reveals that Yb solute promotes the generation of extension twins and the accumulation of dislocations during deformation, leading to a marked enhancement in the work-hardening capacity of the Yb-containing alloys. Benefiting from the refined microstructure and enhanced work hardening, the Mg–8.0Al–1.0Yb–0.5Zn alloy exhibits a favorable balance between mechanical strength and ductility, achieving an ultimate tensile strength of ~ 249.8 MPa and an elongation of ~ 11.70%, respectively.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 7","pages":"1095 - 1108"},"PeriodicalIF":3.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171095","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

Revealing the True Thermoelectric Properties of SnTe through Removing SnO2 Contamination 通过去除SnO2污染揭示SnTe的真实热电性能

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-28 DOI: 10.1007/s40195-025-01838-w

Yicheng Wang, Rongcheng Li, Bowen Jin, Chenghao Xie, Xinfeng Tang, Gangjian Tan

{"title":"Revealing the True Thermoelectric Properties of SnTe through Removing SnO2 Contamination","authors":"Yicheng Wang, Rongcheng Li, Bowen Jin, Chenghao Xie, Xinfeng Tang, Gangjian Tan","doi":"10.1007/s40195-025-01838-w","DOIUrl":"10.1007/s40195-025-01838-w","url":null,"abstract":"<div>Previous studies on SnTe have indicated that its low ZT value is associated with a high carrier concentration of up to 1020–1021 cm−3 and an excessively high lattice thermal conductivity. However, the high carrier concentration and lattice thermal conductivity observed in SnTe are not solely attributable to the presence of numerous intrinsic tin vacancies and a simple crystal structure. Additionally, the oxides formed through the oxidation of Sn and SnTe exert a partial influence on these properties. In this study, by pretreating the raw Sn material and isolating it from oxygen during preparation, we achieve a significant improvement in the thermoelectric performance of binary SnTe at high temperatures, with a peak ZT of approximately 0.83 at 800 K. This approach effectively reduces the content of SnO2 in the matrix, enhancing the electrical and thermal transport properties of the samples. Specifically, the high-thermal conductivity of SnO2 facilitates the formation of channels at grain boundaries that are more conducive to heat transfer, while its poor electrical conductivity and Seebeck coefficient diminish the intrinsic electrical transport behavior of SnTe. The removal of SnO2 reflects the true thermoelectric performance of SnTe, making the samples prepared by this method stand out compared to other reported binary SnTe materials.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 5","pages":"754 - 762"},"PeriodicalIF":2.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892656","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 Intercritical Annealing Prior to Quenching and Partitioning on Impact Abrasive Wear Properties of Medium-Manganese Steel 淬火前临界间退火及配分对中锰钢冲击磨粒磨损性能的影响

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-25 DOI: 10.1007/s40195-025-01847-9

Shaolong Zhang, Wen Zhou, Feng Hu, Kaiming Wu, Serhii Yershov

{"title":"Effect of Intercritical Annealing Prior to Quenching and Partitioning on Impact Abrasive Wear Properties of Medium-Manganese Steel","authors":"Shaolong Zhang, Wen Zhou, Feng Hu, Kaiming Wu, Serhii Yershov","doi":"10.1007/s40195-025-01847-9","DOIUrl":"10.1007/s40195-025-01847-9","url":null,"abstract":"<div>Medium-manganese steel exhibits excellent strength and toughness, which are essential features in wear resistance applications. This study examines the impact of annealing temperature on impact abrasive wear. The results have indicated that samples annealed at different temperatures display plowing and fatigue wear effects. In the initial wear stage, the high-temperature annealed steel outperforms samples annealed at a lower temperature in terms of anti-plowing wear performance. This phenomenon is mainly due to the lower initial hardness of the samples subjected to low-temperature annealing. However, with prolonged wear time, the low-temperature annealed samples exhibit improved plowing wear performance, which is ascribed to a refinement of the lamellar microstructure and an increased residual austenite (RA), which enhances the work hardening effect, improving the hardness of the worn surface. The low-temperature annealed samples consistently delivered superior fatigue wear performance when compared with samples annealed at the higher temperature. The latter effect may be attributed to two factors. Firstly, the finer lamellar microstructure in the low-temperature annealed samples, coupled with greater RA, results in transformation-induced plasticity or twin-induced plasticity effect that hinders crack formation and propagation. Secondly, the low-temperature annealed samples form nanoscale equiaxed grains near the worn surface during the wear process. These grains can withstand crack driving forces in fine-grained regions, suppressing the formation and propagation of cracks.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 6","pages":"1041 - 1056"},"PeriodicalIF":3.9,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169931","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

Surface Wear Behavior of Nanograined NbMoTaW Refractory High-Entropy Alloys via Nano-scratching Simulations 纳米晶NbMoTaW难熔高熵合金的表面磨损行为

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-25 DOI: 10.1007/s40195-025-01832-2

Meisa Zhou, Kun-Ming Pan, Xiao-Ye Zhou, Shulong Ye, Shaojie Du, Hong-Hui Wu

{"title":"Surface Wear Behavior of Nanograined NbMoTaW Refractory High-Entropy Alloys via Nano-scratching Simulations","authors":"Meisa Zhou, Kun-Ming Pan, Xiao-Ye Zhou, Shulong Ye, Shaojie Du, Hong-Hui Wu","doi":"10.1007/s40195-025-01832-2","DOIUrl":"10.1007/s40195-025-01832-2","url":null,"abstract":"<div>Surface nanocrystallization is a practical approach to enhance surface wear resistance, whereas the specific mechanism of how surface nanocrystallization affects the wear resistance of NbMoTaW refractory high-entropy alloys (RHEAs) remains unclear. Herein, we performed molecular dynamics simulations to explore the wear behaviors of nanograined NbMoTaW RHEA during surface scratching. The wear resistance of nanograined models was significantly enhanced compared to the single-crystalline counterpart. As the grain size increases, the dominant plastic deformation mechanism switches from grain boundary deformation to dislocation movement. Notably, the model with a grain size of 20 nm exhibits the highest dislocation density, local stress, and degree of work hardening. At elevated temperatures, the dynamic recrystallization becomes a crucial plastic deformation mechanism and hinders the formation of dislocations, resulting in a decrease in dislocation density and consequently a decline in the wear resistance of NbMoTaW RHEAs. The current study provides insight into the mechanism underlying the enhanced wear resistance of NbMoTaW RHEAs.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 6","pages":"946 - 960"},"PeriodicalIF":3.9,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169932","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