Acta Metallurgica Sinica-English Letters最新文献_第8页

Evolution of Microstructure and Mechanical Properties of AZ31 Sheets with Different Initial Microstructures During the Corrugated Wide Limit Alignment Process 不同初始组织AZ31板在波纹宽极限对准过程中的组织与力学性能演变

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-20 DOI: 10.1007/s40195-025-01844-y

Hongyang Zhang, Huihui Nie, Zhijian Li, Hongsheng Chen, Wei Liang, Liuwei Zheng

{"title":"Evolution of Microstructure and Mechanical Properties of AZ31 Sheets with Different Initial Microstructures During the Corrugated Wide Limit Alignment Process","authors":"Hongyang Zhang, Huihui Nie, Zhijian Li, Hongsheng Chen, Wei Liang, Liuwei Zheng","doi":"10.1007/s40195-025-01844-y","DOIUrl":"10.1007/s40195-025-01844-y","url":null,"abstract":"<div>Presetting tensile twins (TTs) can enhance the mechanical properties of magnesium (Mg) alloys. Two as-received (AR) sheets, as-received state-A (AR-A) with fiber texture and nonuniform grains and as-received state-B with basal texture and uniform equiaxial grains are selected to induce TTs via a novel method called corrugated wide limit alignment (CWLA), and the corresponding CWLA-processed sheets are denoted as CWLA-processed state-A (C-A) and CWLA-processed state-B (C-B). The results demonstrate that a larger initial average grain size correlates with a higher fraction of TTs induced in Mg sheets, thereby refining the grains and forming a new rolling direction (RD) tilted texture during CWLA. The ultimate tensile strength increases by 32% from AR-A to C-A, primarily due to refinement strengthening and twinning-induced strain hardening. The recrystallization mechanism of C-A is dominated by twinning-induced dynamic recrystallization (DRX), where DRX grains prefer to inherit the orientation of TTs, resulting in an enhanced RD-tilted texture and the formation of multi-modal texture. The recrystallization mechanism of C-B is mainly discontinuous DRX and continuous DRX, and the DRX grains prefer to inherit the orientation of matrix grains, ultimately forming a basal texture. In summary, the tensile mechanical behavior of pre-twinned Mg sheets significantly depends on the grain size and texture of the AR sheets, so they present similar changing trends during tensile deformation.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 6","pages":"1012 - 1028"},"PeriodicalIF":3.9,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167120","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 Ag Vacancies on the Mechanical Properties of Ag2S Thermoelectric Semiconductor Ag空位对Ag2S热电半导体力学性能的影响

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-20 DOI: 10.1007/s40195-025-01836-y

Yao Zhang, Hongtao Wang, Zhongtao Lu, Zifeng Li, Pengfei Wen, Xiaobin Feng, Guodong Li, Bo Duan, Pengcheng Zhai

{"title":"Effect of Ag Vacancies on the Mechanical Properties of Ag2S Thermoelectric Semiconductor","authors":"Yao Zhang, Hongtao Wang, Zhongtao Lu, Zifeng Li, Pengfei Wen, Xiaobin Feng, Guodong Li, Bo Duan, Pengcheng Zhai","doi":"10.1007/s40195-025-01836-y","DOIUrl":"10.1007/s40195-025-01836-y","url":null,"abstract":"<div>Ag vacancies have been shown to regulate the thermoelectric properties of Ag2S. However, their effect on the mechanical properties of Ag2S remains unclear. In this study, Ag2S-based samples with various Ag vacancy concentration were prepared, and their mechanical properties were investigated experimentally and theoretically. Both the bending strength and fracture strain decrease with increasing Ag vacancy concentration. Moreover, the dimple size on the fracture surfaces of the samples gradually reduces with increasing Ag vacancy concentration, further confirming the reduction in material ductility. Density functional theory results reveal that Ag vacancies lead to the disruption of Ag–S bonds in Ag2S at low ultimate strains, consequently causing a simultaneous reduction in both strength and deformability, which agrees reasonably well with the experimental observations. This work provides new insights into the effect of vacancies on the mechanical properties of Ag2S materials, which could guide the design of fast ionic thermoelectric materials.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 5","pages":"869 - 875"},"PeriodicalIF":2.9,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892659","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

Point Defects and Grain Boundaries Effects on Electrical Transports of PbTe Using the Non-equilibrium Green’s Function 利用非平衡格林函数研究点缺陷和晶界对PbTe电输运的影响

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-20 DOI: 10.1007/s40195-025-01834-0

Mi Qin, Bingqing Cao, Pan Zhang, Xuemei Zhang, Ziqi Han, Xiaohong Zheng, Xianlong Wang, Xin Chen, Yongsheng Zhang

{"title":"Point Defects and Grain Boundaries Effects on Electrical Transports of PbTe Using the Non-equilibrium Green’s Function","authors":"Mi Qin, Bingqing Cao, Pan Zhang, Xuemei Zhang, Ziqi Han, Xiaohong Zheng, Xianlong Wang, Xin Chen, Yongsheng Zhang","doi":"10.1007/s40195-025-01834-0","DOIUrl":"10.1007/s40195-025-01834-0","url":null,"abstract":"<div>Defect engineering is a commonly methodology used to enhance the thermoelectric performance of thermoelectric PbTe by improving its electronic transport properties. At the nanoscale, defects can induce quantum tunneling effects that significantly impact the electrical properties of materials. To understand the specific mechanisms underlying the quantum transport properties of PbTe, we employ the non-equilibrium Green's function (NEGF) method to investigate the effects of intrinsic defects (point defects and grain boundaries) on the electronic transport properties of PbTe-based nanodevices from a quantum mechanical perspective. Our results show that the Pb vacancy (VPb) has the highest conduction. The conduction depends on the defect type, chemical potential and bias voltage. The presence of intrinsic point defects introduces impurity levels, facilitating the electron tunneling and leading to an increase in the transmission coefficient, thereby enhancing the electronic transport properties. For PbTe containing grain boundaries, these boundaries suppress the electronic transport properties. The Te occupied twin boundary (Te-TB) exerts a stronger inhibitory effect than the Pb occupied twin boundary (Pb-TB). Nevertheless, the combined effect between twin boundaries and point defects can enhance the electrical properties. Therefore, in order to obtain highly conductive of PbTe materials, a Te-rich synthesis environment should be used to promote the effective formation of Pb vacancy. Our work offers a comprehensive understanding of the impact of defects on electron scattering in thermoelectric materials.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 5","pages":"811 - 822"},"PeriodicalIF":2.9,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892719","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

Thermoelectric Performance of CuInSe2-ZnSe Solid Solution CuInSe2-ZnSe固溶体的热电性能

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-20 DOI: 10.1007/s40195-025-01839-9

Chengwei Sun, Wang Li, Chengjun Li, Yingchao Wei, Wenyuan Ma, Xin Li, Qinghui Jiang, Yubo Luo, Junyou Yang

{"title":"Thermoelectric Performance of CuInSe2-ZnSe Solid Solution","authors":"Chengwei Sun, Wang Li, Chengjun Li, Yingchao Wei, Wenyuan Ma, Xin Li, Qinghui Jiang, Yubo Luo, Junyou Yang","doi":"10.1007/s40195-025-01839-9","DOIUrl":"10.1007/s40195-025-01839-9","url":null,"abstract":"<div>CuInSe2 is an N-type diamond-like semiconductors thermoelectric candidate for power generation at medium temperature with its environmentally friendly and cost-effective properties. However, the intrinsic high thermal conductivity of CuInSe2 limits the enhancement of its thermoelectric performance. Herein, we investigate the thermoelectric performance of N-type CuInSe2 materials by incorporating ZnSe through a solid solution strategy. A series of (CuInSe2)1-x(ZnSe)x (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) samples were synthesized, forming continuous solid solutions, while introducing minor porosity. ZnSe solid solution effectively reduces the lattice thermal conductivity of the CuInSe2 matrix at near-room temperatures, but has a weaker effect at higher temperatures. Due to the intrinsic low carrier concentration of the system, resulting in high resistivity, the maximum figure of merit (ZT) of (CuInSe2)0.8(ZnSe)0.2 reaches 0.08 at 773 K. Despite the relatively low ZT, the solid solution strategy proves effective in reducing the lattice thermal conductivity near-room temperature and offers potential for cost-effective thermoelectric materials.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 5","pages":"823 - 830"},"PeriodicalIF":2.9,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892720","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

Correlation Mechanism Between Microstructure and Fatigue Crack Propagation Behavior of Ti–Mo–Cr–V–Nb–Al Titanium Alloys Ti-Mo-Cr-V-Nb-Al钛合金显微组织与疲劳裂纹扩展行为的相关机理

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-12 DOI: 10.1007/s40195-025-01823-3

Wangjian Yu, Rui Hu, Guoqiang Shang, Xian Luo, Hong Wang

{"title":"Correlation Mechanism Between Microstructure and Fatigue Crack Propagation Behavior of Ti–Mo–Cr–V–Nb–Al Titanium Alloys","authors":"Wangjian Yu, Rui Hu, Guoqiang Shang, Xian Luo, Hong Wang","doi":"10.1007/s40195-025-01823-3","DOIUrl":"10.1007/s40195-025-01823-3","url":null,"abstract":"<div>This study investigates the fatigue crack propagation mechanism of a new high-strength and high-tough Ti–Mo–Cr–V–Nb–Al titanium alloy with three types of microstructures (basketweave structure, lamellar structure, and bimodal structure) through fatigue crack propagation rate tests and fatigue threshold value tests. The resistance of the alloy to fatigue crack propagation was found to be closely correlated with the morphology and distribution of α particles, as evidenced by microscopic examination of fracture surfaces and analysis of crack propagation paths. The primary α particles demonstrated superior resistance to crack propagation compared to the secondary α particles. The basketweave structure showed exceptional resistance to fatigue crack propagation at all stages. The lamellar structure mainly resists long crack propagation during rapid propagation, and its threshold value is the lowest, which makes it easy to produce microcrack propagation. On the contrary, the bimodal structure has the highest threshold value among the three, so its resistance to short crack growth is more excellent, but it has the highest crack growth rate in the higher stress intensity factor range. The α particles in the three microstructures also undergo rotational motion relative to the force axis during fatigue crack propagation, thereby adjusting the uneven stress distribution between α/β phases through slip behavior and further coordinating deformation.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 6","pages":"981 - 1002"},"PeriodicalIF":3.9,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164342","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

Effects of Groove Shape on Microstructure and Mechanical Responses of Laser-Directed Energy Deposition-Repaired GH4099 Ni-Based Superalloy 凹槽形状对激光定向能沉积修复GH4099镍基高温合金组织和力学响应的影响

IF 3.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-12 DOI: 10.1007/s40195-025-01837-x

Wei Pan, Bin Xu, Chong Li

{"title":"Effects of Groove Shape on Microstructure and Mechanical Responses of Laser-Directed Energy Deposition-Repaired GH4099 Ni-Based Superalloy","authors":"Wei Pan, Bin Xu, Chong Li","doi":"10.1007/s40195-025-01837-x","DOIUrl":"10.1007/s40195-025-01837-x","url":null,"abstract":"<div>Repairing the Ni-based superalloy component remains challenging due to the limited understanding of the role of the defect’s morphology on microstructure and related deformation responses. To address this issue, GH4099 Ni-based superalloy plate with U-shaped and V-shaped grooves was prepared and repaired by laser-directed energy deposition method using GH4099 powders. Both grooves exhibit three similar regions at the repaired interphase, which are the base metal region with equiaxed grains, repaired region with columnar or elongated equiaxed grains, and a transition region in between. High-temperature gradient in the repaired region induced a high density of substructures, and the repaired region in U-shaped grooves has an even higher temperature gradient due to fewer passes of the melted metal, which induces more metallic carbides in the subgrain boundaries and improves the tensile strength of the repaired samples. However, due to the steep side walls, local vortex might form at the bottom corner of the U-shaped groove, leaving macroscale holes and micro-cracks there. Such defects will decrease the alloy’s ductility. The relationship among groove morphology–macro- and microstructure–mechanical properties is then established, which suggesting the preferred V-shaped groove considering the flatter sidewall and more passes induced near equilibrium microstructure.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 6","pages":"1003 - 1011"},"PeriodicalIF":3.9,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164343","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 Carbon Nanotubes on the Thermoelectric and Mechanical Properties of Cu2.1Mn0.9SnSe4 Alloy 碳纳米管对Cu2.1Mn0.9SnSe4合金热电性能和力学性能的影响

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-03-01 DOI: 10.1007/s40195-025-01833-1

Yuqing Sun, Fulong Liu, Zhihao Li, Panpan Peng, Yujie Zong, Peng Cao, Chunlei Wang, Hongchao Wang

{"title":"Influence of Carbon Nanotubes on the Thermoelectric and Mechanical Properties of Cu2.1Mn0.9SnSe4 Alloy","authors":"Yuqing Sun, Fulong Liu, Zhihao Li, Panpan Peng, Yujie Zong, Peng Cao, Chunlei Wang, Hongchao Wang","doi":"10.1007/s40195-025-01833-1","DOIUrl":"10.1007/s40195-025-01833-1","url":null,"abstract":"<div>Quaternary chalcogenides are viewed as a class of potential thermoelectric materials due to their good thermoelectric performance in the medium temperature region. In this work, carbon nanotubes (CNTs) with varying weight percentages are composited into the quaternary chalcogenide Cu2.1Mn0.9SnSe4 (CMTS) using a technique that combines ball-milling and hot-pressing, and the effect of CNTs on the thermoelectric performance of CMTS is investigated. The compositing of CNTs results in an increase in the intrinsic defects of CMTS, thereby enhancing the electrical conductivities of the composited samples. Besides, the addition of CNTs introduces various phonon scattering mechanisms, effectively restraining the lattice thermal conductivities of the composited samples, particularly in the low to medium temperature range. Ultimately, owing to the concurrent optimization of the power factor and thermal conductivity, the x = 0.25 sample achieves a zT value of 0.37 at 673 K. The compositing of highly conductive secondary phase is recognized as a viable approach for the simultaneous enhancement of the thermoelectric properties of materials.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 5","pages":"831 - 838"},"PeriodicalIF":2.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892721","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 Hot Isostatic Pressing Temperature on Microstructure and Mechanical Properties of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si Alloy 热等静压温度对Ti-6.5Al-3.5Mo-1.5Zr-0.3Si合金组织和力学性能的影响

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-25 DOI: 10.1007/s40195-025-01820-6

X. W. Shang, Z. G. Lu, R. P. Guo, L. Xu

{"title":"Influence of Hot Isostatic Pressing Temperature on Microstructure and Mechanical Properties of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si Alloy","authors":"X. W. Shang, Z. G. Lu, R. P. Guo, L. Xu","doi":"10.1007/s40195-025-01820-6","DOIUrl":"10.1007/s40195-025-01820-6","url":null,"abstract":"<div>Hot isostatic pressing (HIP) temperature has a significant impact on the service performance of powder metallurgy titanium alloys. In this study, a high-temperature titanium alloy, Ti-6.5Al-3.5Mo-1.5Zr-0.3Si, was prepared under different HIP temperatures (880–1000 °C), and the microstructural evolution and mechanical properties were systematically investigated. The results demonstrated that the HIPed alloys were predominantly composed of more than 80 vol.% α phase and a small amount of β phase, and their phase compositions were basically unaffected by the HIP temperatures. Under the typical single-temperature-maintained HIP (STM-HIP) regime, the microstructure of alloy significantly coarsened as the HIP temperature increased, and the alloy strength exhibited an obvious linear negative correlation with the HIP temperature. On the basis of Hall–Petch relation, the prediction model of grain size was established, and the mathematical equation between HIP temperature and grain size (left( {d = Mleft( {T_{{{text{HIP}}}} - N} right)^{ - 2} } right)) was deduced. Furthermore, a possible evolution mechanism of microstructure was proposed, which could be divided into the decomposition of initial α′ martensite for as-received powder, formation of the globular α grains in prior particle boundaries (PPBs) region, and precipitation of the platelet α grains in non-PPBs region. For these alloys prepared by the dual-temperature-maintained HIP (DTM-HIP) regime, although their tensile properties were comparable to that of alloy prepared by STM-HIP regime with same high-temperature holding stage, higher proportion of globular α grains occurred due to more recrystallization nucleation during the low-temperature holding stage, which probably provided a solution for improving the dynamic service performance of HIPed alloys.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 4","pages":"627 - 641"},"PeriodicalIF":2.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830773","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

Strength Optimization of Diffusion-Bonded Ti2AlNb Alloy by Post-Heat Treatment 扩散结合Ti2AlNb合金热处理后强度优化

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-25 DOI: 10.1007/s40195-025-01824-2

Haijian Liu, Tianle Li, Xifeng Li, Huiping Wu, Zhiqiang Wang, Jun Chen

{"title":"Strength Optimization of Diffusion-Bonded Ti2AlNb Alloy by Post-Heat Treatment","authors":"Haijian Liu, Tianle Li, Xifeng Li, Huiping Wu, Zhiqiang Wang, Jun Chen","doi":"10.1007/s40195-025-01824-2","DOIUrl":"10.1007/s40195-025-01824-2","url":null,"abstract":"<div>Diffusion-bonded Ti2AlNb-based alloys commonly present a low strength compared with the deformed or aged ones. In this study, the post heat treatment including solution and aging treatments is proposed to optimize the microstructure, contributing to strength improvement and appropriate ductility sacrifice. An available method by the introduction of fine size (both 20–100 nm) and a high fraction (59.7% and 13.7%) of O and α2 phases using both solution at 1000 °C for 1 h and aging at 750 °C for 5 h can result in excellent tensile strength (992 MPa and 858 MPa) at room temperature and 650 °C, respectively, which increases 5.3% and 44.5% than that of as-received sample. The aging treatment can contribute to lamellar O and α2 grains precipitated from the B2 parent, which results in limited dislocation slip systems and slip spaces to resist plastic deformation. Moreover, the crack propagation and fracture surfaces are also comparatively analyzed to reveal the fracture behaviors in the samples with high and low strength. This study can provide a new method for the mechanical property optimization of the welded Ti2AlNb alloys.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 4","pages":"614 - 626"},"PeriodicalIF":2.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830772","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

Achieving High-Temperature Oxidation and Corrosion Resistance in Fe–Mn–Cr–Al–Cu–C TWIP Steel via Annealing Control 通过退火控制实现Fe-Mn-Cr-Al-Cu-C TWIP钢的高温抗氧化性和耐腐蚀性

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2025-02-25 DOI: 10.1007/s40195-025-01821-5

Yang Feng, Shuai Wang, Yang Zhao, Li-Qing Chen

{"title":"Achieving High-Temperature Oxidation and Corrosion Resistance in Fe–Mn–Cr–Al–Cu–C TWIP Steel via Annealing Control","authors":"Yang Feng, Shuai Wang, Yang Zhao, Li-Qing Chen","doi":"10.1007/s40195-025-01821-5","DOIUrl":"10.1007/s40195-025-01821-5","url":null,"abstract":"<div>Twinning-induced plasticity (TWIP) steel shows great potential in engineering due to its excellent strength and ductility synergy, and strengthening research on its corrosion resistance and high-temperature oxidation resistance is critical for broader applications. Herein, the effect of annealing temperature on the high-temperature oxidation and corrosion behavior of Fe–Mn–Cr–Al–Cu–C TWIP steel is investigated. The results show that increasing the annealing temperature from 700 °C to 1100 °C reduced the mass gain of the TWIP steel oxidized at 800 °C for 8 h from 1.93 to 0.58 mg·cm−2. Additionally, the self-corrosion current density decreases from 6.52 × 10−6 to 1.32 × 10−6 A·cm−2, while charge transfer resistance increases from 1461 to 3339 Ω·cm−2. The reduction in grain boundaries and dislocation density in the TWIP steel attributed to the increase in annealing temperature inhibits short-circuit diffusion, local galvanic corrosion and pitting, ultimately improving both oxidation and corrosion resistance. Moreover, high-temperature annealing prevents the formation of carbon-rich compounds and ensures uniform element distribution. The accumulation of Cu and Cu-rich products formed at the interface further protects against Cl− erosion, inhibiting pitting and local corrosion, thus enhancing the corrosion resistance of the TWIP steel.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 4","pages":"642 - 656"},"PeriodicalIF":2.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830774","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