Metals and Materials International最新文献_第7页

Mechanical Properties of Additively Manufactured Node-Reinforced Lattice Structures: Effects of Spherical Node Size and Distribution 增材制造节点增强晶格结构的力学性能：球面节点尺寸和分布的影响

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-23 DOI: 10.1007/s12540-025-02025-3

Yi Ren, Siyang Cai, Bowen Xue, Yucheng Zhao, Chao Lou, Yongxun Li, Wei Chen

{"title":"Mechanical Properties of Additively Manufactured Node-Reinforced Lattice Structures: Effects of Spherical Node Size and Distribution","authors":"Yi Ren, Siyang Cai, Bowen Xue, Yucheng Zhao, Chao Lou, Yongxun Li, Wei Chen","doi":"10.1007/s12540-025-02025-3","DOIUrl":"10.1007/s12540-025-02025-3","url":null,"abstract":"<p>The nodes of lattice structure are crucial in mechanical performance design. In this study, we introduced spherical nodes into a hexagonal body-centered (NHBC) lattice structure based on the characteristics of hexagonal prism and body centered cubic structure, and systematically investigated the effects of different sizes and distributions of the spherical nodes on the mechanical properties of laser powder bed fusion (LPBF) additively manufactured NHBC lattice structures. The results demonstrate that the size and distribution of reinforced nodal spheres significantly influence the mechanical properties of lattice structures. Although the NHBC4 lattice structure, featuring 1.21 mm diameter spheres distributed at all nodes, exhibits the highest elastic modulus and ultimate strength, it shows the lowest specific elastic modulus and specific ultimate strength. In contrast, the NHBC2 lattice structure achieves the highest specific elastic modulus and specific ultimate strength, surpassing NHBC4 by 13.3% and 6.3%, respectively. Analysis of the deformation behavior and failure modes of the node-reinforced lattice structures reveals that the reinforced nodal sphere design effectively optimizes stress distribution at the nodes. This modification shifts the fracture location of the edge z-struts from the nodes to the center of the edge z-struts, indicating enhanced structural integrity and load redistribution capabilities.</p>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"32 1","pages":"285 - 297"},"PeriodicalIF":4.0,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145915669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhancement of Tensile Strength of 316L Stainless Steel by Laser Composite Deposition of GNPs and TA2 激光复合沉积GNPs和TA2提高316L不锈钢的抗拉强度

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-22 DOI: 10.1007/s12540-025-02024-4

Jiashuo Xu, Yan Fang, Chao Wang, Jianbo Lei, Buyun Zheng

{"title":"Enhancement of Tensile Strength of 316L Stainless Steel by Laser Composite Deposition of GNPs and TA2","authors":"Jiashuo Xu, Yan Fang, Chao Wang, Jianbo Lei, Buyun Zheng","doi":"10.1007/s12540-025-02024-4","DOIUrl":"10.1007/s12540-025-02024-4","url":null,"abstract":"<div><p>This study proposes an in-situ reaction method based on graphene nanoplatelets (GNPs) and titanium powder (TA2), which generates TiC particles in-situ to reinforce the mechanical properties of 316L alloy. This approach offers a novel strategy for expanding the application of 316L alloy in high-strength environments, such as engineering structures, marine pipelines transportation, and petrochemical industries. Using the LDED technique, C and Ti elements are introduced through high-energy powder melting, promoting the in-situ generation of TiC ceramic phase during deposition. These TiC particles form numerous active heterogeneous nucleation sites in the matrix, significantly enabling the generation of fine grains in the undercooled liquid phase. Through competitive grain growth, they achieve grain refinement in the GT/316L deposited specimens, exhibiting excellent optimization in microstructure and material performance. Experimental results indicate that compared to conventional 316L, the microhardness of GT/316L specimens increased significantly from 209.6 HV<sub>0.2</sub> to 328.7 HV<sub>0.2</sub>, representing an impressive 56.8% improvement. The UTS was enhanced from 660 MPa to 810 MPa, while the YS rose from 512 MPa to 600 MPa. Furthermore, the tensile properties perpendicular to the laser scanning direction consistently outperformed those parallel to it. The mechanical properties of the GT/316L specimen improved markedly owing to the combined action of various mechanisms. These mechanisms include dislocation strengthening, load transfer, grain refinement and the Orowan effect.</p></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"32 4","pages":"1193 - 1208"},"PeriodicalIF":4.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Surface Pre-Deformation on Precipitation Behavior and Mechanical Properties of 7050 Aluminum Alloy 表面预变形对7050铝合金析出行为及力学性能的影响

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-22 DOI: 10.1007/s12540-025-02019-1

Liqian Wang, Lei Zhou, Zisheng Zhang, Pingwei Xu, Yingfei Guo, Fei Zhao, Ming Yang, Longxiang Wang, Yonghai Ren, Wei Zhao, Yu Liang

{"title":"Effect of Surface Pre-Deformation on Precipitation Behavior and Mechanical Properties of 7050 Aluminum Alloy","authors":"Liqian Wang, Lei Zhou, Zisheng Zhang, Pingwei Xu, Yingfei Guo, Fei Zhao, Ming Yang, Longxiang Wang, Yonghai Ren, Wei Zhao, Yu Liang","doi":"10.1007/s12540-025-02019-1","DOIUrl":"10.1007/s12540-025-02019-1","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper systematically investigates the influence of surface pre-deformation on the microstructure evolution and mechanical properties of 7050 aluminum alloy using ultrasonic surface rolling processing (USRP) followed by aging treatment. The results indicate that USRP forms a grain gradient layer with a depth of 160 µm on the surface. After aging, the surface precipitates coarsen significantly, forming η phases. With increasing depth, the precipitate size decreases while density increases, and the precipitates in the sample core transform into finely dispersed η’ phases. This microstructural distribution results in lower surface microhardness (177 HV) compared to the core and unrolled specimens (205 HV), yet without a reduction in strength or ductility. This phenomenon occurs because the grain gradient structure generates a high density of geometrically necessary dislocations (GNDs) during loading, leading to hetero-deformation-induced (HDI) strengthening. Loading and unloading calculations reveal that the grain gradient structure in the USRP sample significantly enhances additional back stress, compensating for the strength loss caused by precipitate coarsening on the surface. Furthermore, the coarse η phase precipitated in the rolled layer due to pre-deformation reduces the electrochemical difference between the grain boundaries and the matrix, improving corrosion resistance. This dual-gradient structure in aluminum alloy is expected to achieve an optimal balance between mechanical strength and corrosion resistance.</p>\u0000 </div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"32 3","pages":"761 - 777"},"PeriodicalIF":4.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Evaluation of Cryogenic Toughness Variation in Multi-Pass HAZ of High Mn Austenitic Steel for LNG Cryogenic Application LNG低温用高锰奥氏体钢多道次热影响区低温韧性变化评价

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-21 DOI: 10.1007/s12540-025-02023-5

Bin Xia, Honghong Wang

{"title":"Evaluation of Cryogenic Toughness Variation in Multi-Pass HAZ of High Mn Austenitic Steel for LNG Cryogenic Application","authors":"Bin Xia, Honghong Wang","doi":"10.1007/s12540-025-02023-5","DOIUrl":"10.1007/s12540-025-02023-5","url":null,"abstract":"<div><p>The evolution and distribution of cryogenic toughness were investigated within the multi-pass welding heat affected zone (HAZ) of a high Mn austenitic steel. The results reveal that thermal cycles exceeding 1000 °C induce enhancements in cryogenic toughness due to grain growth. Unusually, the evolution of cryogenic toughness is governed by M<sub>23</sub>C<sub>6</sub> carbide variation within regions below 1000 °C, which act to reduce the cryogenic toughness. The peak temperature (Tp) of final thermal cycle is a key determinant of cryogenic toughness, as it determines whether the M<sub>23</sub>C<sub>6</sub> carbide precipitate or remelt. The regions exhibiting poor cryogenic toughness spatially overlap with intergranular corrosion grain boundaries (ICGB) zone, because M<sub>23</sub>C<sub>6</sub> carbide also reduce intergranular corrosion resistance. ICGB zone is cross-ringed in HAZ, and its size and position is governed by welding heat input and bead layout. This study provides valuable insights into controlling and testing performance of welded joint.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"32 3","pages":"946 - 955"},"PeriodicalIF":4.0,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147341235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhancement of High Temperature Oxidation Kinetics for Synergic Alloying of Near β-Ti(Al) with Nb and Ta 近β-Ti（Al）与Nb和Ta协同合金化高温氧化动力学的增强

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-16 DOI: 10.1007/s12540-025-02021-7

Shivansh Mehrotra, Sangeeta Santra

{"title":"Enhancement of High Temperature Oxidation Kinetics for Synergic Alloying of Near β-Ti(Al) with Nb and Ta","authors":"Shivansh Mehrotra, Sangeeta Santra","doi":"10.1007/s12540-025-02021-7","DOIUrl":"10.1007/s12540-025-02021-7","url":null,"abstract":"<div><p>This study examined the effect of synergistic alloying of near β-Ti(Al) with niobium (Nb) and tantalum (Ta) on oxidation resistance. Isothermal TGA tests at 1200 °C showed that the (Nb + Ta)-containing alloy exhibited the lowest weight gain and slowest parabolic oxidation rate compared to alloys containing only Nb or only Ta. Isothermal oxidation tests in air at 1000–1200 °C for 9 h revealed that both Nb- and (Nb + Ta)-containing near β-Ti(Al) alloys formed an external oxide zone (EOZ) with rutile (TiO<sub>2</sub>) and alumina (α-Al<sub>2</sub>O<sub>3</sub>) in the outward region, along with sporadic traces of Ta<sub>2</sub>O<sub>5</sub> and Nb<sub>2</sub>O<sub>5</sub> mixed with (Nb/Ta)-rich TiO<sub>2</sub> in the inward region. Fine lamellae of α-Al<sub>2</sub>O<sub>3</sub> within Ti<sub>3</sub>Al phase were observed in the internal oxide zone (IOZ). The observed trend in oxidation resistance was attributed to the increased oxygen ion vacancy formation energy in TiO<sub>2</sub> due to the addition of Nb and Ta. Additionally, the higher valence states of Nb and Ta than Ti contributed to reducing the fraction of oxygen vacancies, thereby suppressing the formation of TiO<sub>2</sub>.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"32 3","pages":"862 - 873"},"PeriodicalIF":4.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Intercritical Annealing on Microstructure Evolution and Tensile Properties of Direct-Quenched Low-Carbon Steels Containing Cr and Mo 临界间退火对直接淬火含Cr、Mo低碳钢组织演变及拉伸性能的影响

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-16 DOI: 10.1007/s12540-025-02022-6

Seung-Hyeok Shin, Dong-Kyu Oh, Byoungchul Hwang

{"title":"Effects of Intercritical Annealing on Microstructure Evolution and Tensile Properties of Direct-Quenched Low-Carbon Steels Containing Cr and Mo","authors":"Seung-Hyeok Shin, Dong-Kyu Oh, Byoungchul Hwang","doi":"10.1007/s12540-025-02022-6","DOIUrl":"10.1007/s12540-025-02022-6","url":null,"abstract":"<div><p>This study investigates the effects of intercritical annealing (IA) on the microstructural evolution and tensile properties of direct-quenched low-carbon steels containing Cr and Mo. The steels were subjected to IA at different temperatures (740, 780, and 820 °C) to examine variations in ferrite-martensite morphology and phase distribution. The microstructural analysis revealed that increasing IA temperature led to an increase in the martensite volume fraction and a transformation from a lath to a fibrous microstructure in all steels, with the CrMo-added steel showing the most significant change, from 17.3% at 740 °C to 54.1% at 820 °C. The addition of Cr and Mo influenced phase transformation kinetics by reducing the mobility of the ferrite/austenite interface at lower IA temperatures due to the solute drag effect. Tensile testing showed an unusual trend where higher martensite fractions resulted in a decrease in strength and an increase in uniform elongation across all compositions, deviating from conventional dual-phase steel behavior. Notably, in the CrMo-added steel, the yield strength decreased from 685 MPa at 740 °C to 572 MPa at 820 °C, while uniform elongation increased from 6.1 to 7.4%. This phenomenon was attributed to changes in mobile dislocation density, hetero-deformation-induced strengthening, and enhanced martensite plasticity at higher IA temperatures. These findings offer valuable insights for optimizing IA conditions and alloy design to develop cost-effective, high-performance low-carbon dual-phase steels with enhanced mechanical properties.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"32 3","pages":"778 - 790"},"PeriodicalIF":4.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Role of Peening Medium in Ultrasonic-Assisted Abrasive Peening Process: A Numerical and Experimental Study 强化介质在超声辅助磨料强化过程中的作用：数值与实验研究

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-10 DOI: 10.1007/s12540-025-02012-8

S. V. V. N. Siva Rao, N. D. Chakladar, Soumitra Paul

{"title":"Role of Peening Medium in Ultrasonic-Assisted Abrasive Peening Process: A Numerical and Experimental Study","authors":"S. V. V. N. Siva Rao, N. D. Chakladar, Soumitra Paul","doi":"10.1007/s12540-025-02012-8","DOIUrl":"10.1007/s12540-025-02012-8","url":null,"abstract":"<div><p>Ultrasonic-assisted abrasive peening (UAP) is proposed in this study which offers an efficient approach to pre-treat metallic components. This process employs a peening medium comprising of a fluid mixed with a stabilizer and abrasives. The properties of the peening medium, such as density, surface tension, and viscosity influence the dynamics of cavitation bubble and, hence, the resultant outcomes of the peening process. In this study, the effect of peening medium was investigated by mixing 2 wt% surfactant and 4 wt% YSZ abrasives into water, soybean oil, corn oil, and olive oil as peening media. The cavitation bubble dynamics and the induced abrasive velocity was numerically determined by the Keller–Miksis and Newtonian mechanics equations. It was observed that the abrasive velocity in water was 2.3-fold higher than in oils. Specifically, water imparted maximum abrasive velocity of 283 m/s induced by microjets and 231 m/s induced by shockwaves, whereas olive oil resulted in lower abrasive velocity of 126 m/s and 134 m/s, respectively. Consistent with the numerical analysis, the water-peened Ti–6Al–4V sample exhibited highest residual stress of (−)575.1 ± 10 MPa, while no residual stresses were observed with oil-based peening. Viscosity was identified as the key medium property influencing the cavitation dynamics, with oils demonstrating 75 times higher viscosity than water. Hence, selection of low viscous peening medium is essential for enhanced UAP outcomes.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"32 3","pages":"791 - 809"},"PeriodicalIF":4.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147338209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Recrystallization Behavior of 20Cr2Ni4A Gear Steel 20Cr2Ni4A齿轮钢动态再结晶行为

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-10 DOI: 10.1007/s12540-025-02018-2

Xiaodong Wu, Shaorong Zhou, Jie Zhu, Zhongying Wang

引用次数: 0

Controlling Solidification Cracking in Additively Manufactured Inconel 718 via Interlayer Dwell time 利用层间停留时间控制增材制造Inconel 718的凝固裂纹

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-07 DOI: 10.1007/s12540-025-02016-4

Aditya Pandey, Vidit Gaur, Supriyo Ghosh

{"title":"Controlling Solidification Cracking in Additively Manufactured Inconel 718 via Interlayer Dwell time","authors":"Aditya Pandey, Vidit Gaur, Supriyo Ghosh","doi":"10.1007/s12540-025-02016-4","DOIUrl":"10.1007/s12540-025-02016-4","url":null,"abstract":"<div><p>Investigations on the impact of fabrication path planning in directed energy deposition via interlayer dwell time have revealed significant improvements in the mechanical properties of the solidified material. However, the correlation between these improvements and microstructural phenomena during melt-pool solidification remains largely unexplored. As the size of the component increases, interlayer dwell time becomes more critical, as it can alter the cooling rate and help mitigate issues related to excessive heat buildup in the part. In this work, we characterize the impact of increasing interlayer dwell times on the resulting microstructure features, solute segregation, and solidification cracking. We use various modeling techniques in cooperation, including thermo-mechanical, thermo-fluid, finite difference Monte Carlo, phase-field, and analytical models to simulate the grain and dendritic growth, solute segregation, Laves phase formation, and cracking behavior during melt-pool solidification and examine their role in properties improvement in an Inconel 718 alloy. Our findings indicate that reducing interlayer dwell time can result in coarse dendritic structures that solidify primarily in the build direction due to low cooling rates and thermal gradients. In contrast, longer dwell times produce tilted dendrites driven by higher cooling rates and thermal gradients. The coarse dendritic structures create wider and longer liquid channels between the dendrite arms, which increases Nb segregation and favors the formation of detrimental Laves phase during terminal solidification, subsequently increasing the susceptibility to solidification cracking in the mushy zone. The numerical results are directly compared against experimental measurements with reasonable agreement.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"32 2","pages":"416 - 441"},"PeriodicalIF":4.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147337808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Grain Size Effect on Sensitivity of Pseudoelasticity to Ni Content of Nanocrystalline NiTi Alloys 晶粒尺寸对纳米晶NiTi合金准弹性对Ni含量敏感性的影响

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-07-07 DOI: 10.1007/s12540-025-02017-3

Penghui Li, Xiaobin Shi, Ping Liu

{"title":"Grain Size Effect on Sensitivity of Pseudoelasticity to Ni Content of Nanocrystalline NiTi Alloys","authors":"Penghui Li, Xiaobin Shi, Ping Liu","doi":"10.1007/s12540-025-02017-3","DOIUrl":"10.1007/s12540-025-02017-3","url":null,"abstract":"<div><p>Ni content has a significant effect on martensitic transformation behaviour and tensile mechanical properties of Ni-rich NiTi shape memory alloys. In this study, the effect of grain size on sensitivity of tensile mechanical properties to Ni content of nanocrystalline NiTi alloys was investigated. Two NiTi alloys with nominal compositions of Ni-49.6 at %Ti and Ni-48.8 at %Ti were cold drawn into 21%−72% deformations, followed by annealing at 350 − 450 ºC. Nanocrystalline NiTi alloys were acquired when cold drawing strain was larger than 62% after annealing and average grain size that smaller than 20 nm was acquired when annealed at 350 ºC. The results of tensile mechanical properties suggest that sensitivity of upper plateau stress to Ni content decreased with the decreasing grain size. When grain size was smaller than 20 nm, the upper plateau stress of samples with different Ni content were close, which may be attributed to the Ni concentration at grain boundaries. When cold drawing strain was smaller than 52%, the sensitivity of stress hysteresis to Ni content of 350 ºC annealed samples decreased, which is attributed to the high-density dislocations in grains.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"32 3","pages":"749 - 760"},"PeriodicalIF":4.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147337810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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