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

Quasi-in-situ Observation of Interfacial Behaviours: Recrystallization and Grain Recombination during Micro-deformed Diffusion Bonding Process 界面行为的准原位观察:微变形扩散键合过程中的再结晶和晶粒复合

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-09-25 DOI: 10.1007/s40195-023-01604-w

Yu Peng, Shiwei Li, Feng Jin, Yipeng Chen, Wei Guo, Jiangtao Xiong, Jinglong Li

{"title":"Quasi-in-situ Observation of Interfacial Behaviours: Recrystallization and Grain Recombination during Micro-deformed Diffusion Bonding Process","authors":"Yu Peng, Shiwei Li, Feng Jin, Yipeng Chen, Wei Guo, Jiangtao Xiong, Jinglong Li","doi":"10.1007/s40195-023-01604-w","DOIUrl":"10.1007/s40195-023-01604-w","url":null,"abstract":"<div><p>The interfacial behaviours of micro-deformed diffusion bonded joints were systematically revealed. There were two typical bonding interfacial characteristics: “bond line” and migrated grain boundaries. “Bond line” was featured as fine grains and phases on the interface. The critical temperature of joint characterized by “bond line” was 950 °C. The increased temperature 1000 °C was a critical temperature which interfacial characteristic “bond line” eliminated. The second type was characterized by interfacial migration over 1000 °C, in which the bonding interfaces were composed of straight grain boundaries, triple junctions, and protruding and expanding interfacial migrated grains. Additionally, two different interface migration and joint forming mechanisms were observed with elevated bonding temperature: recrystallization and grain recombination. The first one was the discontinuous dynamic recrystallization mechanism, which was observed in the joints bonded at 950 °C and 1000 °C. The second mechanism was the grain boundary migration mechanism based on the grain growth mechanism, of which the typical bonding temperature was 1050 °C. The joint was bonded under two kinds of grain boundary migration, including strain-induced interface grain boundary migration and interface grain boundary migration at triple junction.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797490","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

Unveiling the Contribution of Lactic Acid to the Passivation Behavior of Ti–6Al–4V Fabricated by Laser Powder Bed Fusion in Hank’s Solution 揭示乳酸对汉克溶液中激光粉末床熔合制备Ti-6Al-4V钝化行为的影响

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-09-19 DOI: 10.1007/s40195-023-01602-y

Yu-Hang Chu, Liang-Yu Chen, Bo-Yuan Qin, Wenbin Gao, Fanmin Shang, Hong-Yu Yang, Lina Zhang, Peng Qin, Lai-Chang Zhang

引用次数: 0

Enhanced Hydrogen Embrittlement Resistance via Cr Segregation in Nanocrystalline Fe–Cr Alloys 纳米晶Fe-Cr合金中Cr偏析增强抗氢脆性能

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-09-19 DOI: 10.1007/s40195-023-01603-x

Linshuo Dong, Feiyang Wang, Hong-Hui Wu, Mengjie Gao, Penghui Bai, Shuize Wang, Guilin Wu, Junheng Gao, Xiaoye Zhou, Xinping Mao

{"title":"Enhanced Hydrogen Embrittlement Resistance via Cr Segregation in Nanocrystalline Fe–Cr Alloys","authors":"Linshuo Dong, Feiyang Wang, Hong-Hui Wu, Mengjie Gao, Penghui Bai, Shuize Wang, Guilin Wu, Junheng Gao, Xiaoye Zhou, Xinping Mao","doi":"10.1007/s40195-023-01603-x","DOIUrl":"10.1007/s40195-023-01603-x","url":null,"abstract":"<div><p>Hydrogen is a clean fuel with numerous sources, yet the hydrogen industry is plagued by hydrogen embrittlement (HE) issues during the storage, transportation, and usage of hydrogen gas. HE can compromise material performance during service, leading to significant safety hazards and economic losses. In the current work, the influence of element Cr on the HE resistance of nanocrystalline Fe–Cr alloys under different hydrogen concentrations and strain rates was evaluated. With hybrid Monte Carlo (MC) and molecular dynamics (MD) simulations, it was found that Cr atoms were segregated at grain boundaries (GB) and inhibited the GB decohesion. Correspondingly, Cr segregation improved the strength and plasticity of the nanocrystalline Fe–Cr alloys, especially the HE resistance. Moreover, the Cr segregation reduced the diffusion coefficient of hydrogen and inhibited hydrogen-induced cracking. This work provided new insight into the development of iron-based alloys with high HE resistance in the future.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797171","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

Protective Coatings Containing ZnMOF-BTA Metal–Organic Framework for Active Protection of AA2024-T3 含有ZnMOF-BTA金属的保护涂层——用于AA2024-T3主动保护的有机框架

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-09-19 DOI: 10.1007/s40195-023-01600-0

Izuchukwu K. Nwokolo, Hongwei Shi, Paul C. Uzoma, Sharjeel Ahmed, Jiwen Li, Fuchun Liu

{"title":"Protective Coatings Containing ZnMOF-BTA Metal–Organic Framework for Active Protection of AA2024-T3","authors":"Izuchukwu K. Nwokolo, Hongwei Shi, Paul C. Uzoma, Sharjeel Ahmed, Jiwen Li, Fuchun Liu","doi":"10.1007/s40195-023-01600-0","DOIUrl":"10.1007/s40195-023-01600-0","url":null,"abstract":"<div><p>ZnMOF-BTA, a new metal–organic framework with excellent anti-corrosion properties was prepared and characterized. Polarization and immersion tests in 3.5 wt% NaCl were performed on AA2024-T3 alloy to assess the corrosion inhibition ability of ZnMOF-BTA. It showed an inhibition efficiency of more than 90%, indicating excellent corrosion inhibition of ZnMOF-BTA on AA 2024-T3 in NaCl. Moreover, ZnMOF-BTA particles were incorporated into polyurethane coatings to create corrosion-resistant coatings. Electrochemical tests and neutral salt spray analysis were used to assess the corrosion protection ability of ZnMOF-BTA-laden polyurethane coatings. The results of electrochemical impedance spectra clearly showed the outstanding corrosion resistance and durability of ZnMOF-BTA coatings after 1440 h of immersion with a high pore resistance (<i>R</i><sub>po</sub>) of 1.76 × 10<sup>10</sup> Ω cm<sup>2</sup>. In addition, during the cross-cut adhesion test, the coating did not detach from the substrate, and after the impact test, there was scarcely any indication of a fracture, which further supports the notion that the coating has strong adhesion to the substrate.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71909904","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

Latent Heat of TB18 Titanium Alloy during β to α Phase Transition by DSC and First-Principles Methods 用DSC和第一性原理方法研究TB18钛合金在β-α相变过程中的潜热

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-09-15 DOI: 10.1007/s40195-023-01589-6

Yan-Di Jia, Shuo Cao, Ying-Jie Ma, Sen-Sen Huang, Feng-Ying Qin, Shao-Qiang Li, Wei Xiang, Qian Wang, Qing-Miao Hu, Bo Li, Jia-Feng Lei, Jing Xie, Xiang-Hong Liu, Rui Yang

{"title":"Latent Heat of TB18 Titanium Alloy during β to α Phase Transition by DSC and First-Principles Methods","authors":"Yan-Di Jia, Shuo Cao, Ying-Jie Ma, Sen-Sen Huang, Feng-Ying Qin, Shao-Qiang Li, Wei Xiang, Qian Wang, Qing-Miao Hu, Bo Li, Jia-Feng Lei, Jing Xie, Xiang-Hong Liu, Rui Yang","doi":"10.1007/s40195-023-01589-6","DOIUrl":"10.1007/s40195-023-01589-6","url":null,"abstract":"<div><p>The phase transition of titanium alloys is sensitive to the heat-treatment procedure, accompanied with the latent heat induced by phase transition. However, the latent heat during phase transition of titanium alloy has not been systematically studied, which may result in the gap between designed and actual temperature of the sample and affect the final mechanical properties. In this work, DSC (differential scanning calorimetry) and first-principles simulate methods were used to study the β → α phase transition process of TB18 (Ti–Al-Mo-V-Cr-Nb-Fe system) metastable β titanium alloy, especially to reveal the influence of the heating rate on latent heat. The ratio of latent heat to endothermic heat of the sample during temperature rising was introduced to interpret the effect of latent heat to actual temperature. The ratio of latent heat to endothermic heat at 1 ℃/min is about 15 to 20 times higher than that at 10 ℃/min. The higher ratio indicates that the latent heat of phase transition has a more significant effect on the temperature, which is related to the temperature range of phase transition and the α volume fraction. Compared with the heating rate of 1 ℃/min, the β → α phase transition takes place at higher temperature and the volume fraction of α is smaller at 10 ℃/min. Meanwhile, there is a precipitation free zone between grain boundary α and intragranular α and the distribution of α lamellae is heterogeneous when the heating rate is 10 ℃/min. Both of the experimental and theoretical results suggest that the latent heat of phase transition is the main cause of the temperature fluctuation during heat-treatment process. This work has guiding significance for microstructure optimization affected by temperature, to achieve the desired mechanical properties.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71909313","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 Mechanical Properties in Carbon Martensitic Steel Achieved by Continuous Carbon Gradient and Multilayered Structure 连续碳梯度和多层结构提高了碳马氏体钢的力学性能

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-09-15 DOI: 10.1007/s40195-023-01605-9

Jian Wang, Jiantao Fan, Liming Fu, Aidang Shan

{"title":"Improved Mechanical Properties in Carbon Martensitic Steel Achieved by Continuous Carbon Gradient and Multilayered Structure","authors":"Jian Wang, Jiantao Fan, Liming Fu, Aidang Shan","doi":"10.1007/s40195-023-01605-9","DOIUrl":"10.1007/s40195-023-01605-9","url":null,"abstract":"<div><p>Increasing carbon content in martensite enhances the strength of carbon steel but reduces ductility and toughness. In this study, a multilayered carbon gradient steel was developed to overcome this trade-off by stacking high-carbon (1 wt%) and low-carbon (0.2 wt%) steel plates through preliminary diffusion and multi-pass hot rolling. The resulting microstructure showed a continuous gradient from high-carbon martensite to low-carbon martensite. After low-temperature tempering, the tempered samples exhibited hardness fluctuations along the normal direction, with a maximum value of approximately 700 HV or more in high-carbon regions and a lower value of 500 HV or less in low-carbon regions. Compared to low-carbon steel, the sample tempered at 200 °C showed significant improvements in both strength and ductility, with 1880 MPa ultimate tensile strength and 4.7% uniform elongation. This larger uniform elongation than that of the plain low-carbon steel can be attributed to the greater strain hardening rate in high-carbon regions with a high carbon solid solution strengthening. Simultaneously, it is believed that more slip systems in high-carbon regions could be activated under the multiaxial stress around the layer interface, then showing a better ductility than that of the plain high-carbon steel. Additionally, the gradient structure between different regions effectively helped to avoid abrupt stress and deliver multiaxial stress at any location along the normal direction. The stepped path of the cracks under uniaxial tensile stress suggested a higher fracture toughness.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796694","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 Hot Cracking Initiation Criterion Based on Solidification Liquid Film Characteristic and Microstructure 基于凝固液膜特性和微观组织的热裂起裂判据

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-09-07 DOI: 10.1007/s40195-023-01598-5

Ming-Xing Su, Wentao Zheng, Chun-Bo Yue, Bowen Zheng, Xiao-jiao Zuo, Mengyuan He, Xiaoguang Yuan

引用次数: 0

Nanoporous Metals Based on Metallic Glasses: Synthesis, Structure and Functional Applications 基于金属玻璃的纳米多孔金属:合成、结构和功能应用

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-08-30 DOI: 10.1007/s40195-023-01597-6

Jing Wang, Zhibin Li, Rui Li, Hui Wang, Yuan Wu, Xiongjun Liu, Zhaoping Lu

{"title":"Nanoporous Metals Based on Metallic Glasses: Synthesis, Structure and Functional Applications","authors":"Jing Wang, Zhibin Li, Rui Li, Hui Wang, Yuan Wu, Xiongjun Liu, Zhaoping Lu","doi":"10.1007/s40195-023-01597-6","DOIUrl":"10.1007/s40195-023-01597-6","url":null,"abstract":"<div><p>Nanoporous metals have emerged as a new class of functional materials with unique structures and properties. Compared to conventional metals and alloys, nanoporous metals possess a high surface area, unique pore size distribution and enhanced catalytic activity, making them highly desirable for a wide range of applications, such as photonics, sensing, supercapacitors and catalysis. In this review paper, we aim to summarize recent advances in the fabrication, structural regulation and functional applications of nanoporous metals and their composites via the dealloying of metallic glasses. Particularly, we will discuss the factors that affect the nanoporous structure, including precursor composition, dealloying conditions and post-treatment methods. We will also cover topics such as the preparation of immiscible nanoporous metals and the control of hierarchical nanoporous structures. Finally, we will provide a brief overview of the current situation and discuss the current challenges and potential research directions in the field.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40195-023-01597-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6720265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Extrusion Temperature on the Mechanical Properties and Corrosion Behavior of LZ91 Alloys 挤压温度对LZ91合金力学性能和腐蚀行为的影响

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-08-29 DOI: 10.1007/s40195-023-01590-z

Xuejian Wang, Huaqiang Xiao, K. Su, Bo Lin, Tongmin Wang, E. Guo

引用次数: 0

Intermediate Temperature Fatigue Induced Precipitation and Associated Corrosion in CrMnFeCoNi High Entropy Alloy CrMnFeCoNi高熵合金中温疲劳析出及相关腐蚀

IF 3.5 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2023-08-29 DOI: 10.1007/s40195-023-01588-7

Tiezhuang Han, Jing Wang, Bo Li, Shuang Li, Kaisheng Ming, Fucheng Wang, Bin Miao, Shijian Zheng

{"title":"Intermediate Temperature Fatigue Induced Precipitation and Associated Corrosion in CrMnFeCoNi High Entropy Alloy","authors":"Tiezhuang Han, Jing Wang, Bo Li, Shuang Li, Kaisheng Ming, Fucheng Wang, Bin Miao, Shijian Zheng","doi":"10.1007/s40195-023-01588-7","DOIUrl":"10.1007/s40195-023-01588-7","url":null,"abstract":"<div><p>Understanding the corrosion behavior of high entropy alloys (HEAs) after intermediate temperature fatigue is critical to prevent their catastrophic failures from the reduction of corrosion resistance. Here, we investigated the corrosion behavior of CrMnFeCoNi HEA after 500 °C fatigue test with strain amplitudes of 0.2% and 0.5%. The intermediate temperature fatigue induced two types of precipitates, which were determined as Cr-rich σ phase and NiMn-rich L1<sub>0</sub> phase. Higher strain amplitude not only promoted precipitates generations but also spread the nucleation sites from intergranular to both intergranular and intragranular. Furthermore, we found that the deterioration in corrosion resistance of the alloy was derived from the increase of precipitates, which destroyed the stability of the passive film. The above results revealed that intermediate temperature fatigue impaired the stabilization of the solid solution state and subsequent corrosion resistance of CrMnFeCoNi HEA, where the higher strain amplitude led to more precipitates and more severe corrosion.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71910896","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