Acta Metallurgica Sinica-English Letters最新文献

Effects of Thermal Aging on the Oxidation Behavior of 316L Austenitic Steel in 600 °C Supercritical Fired Boiler: Mechanism Based on Interface Features 热老化对 316L 奥氏体钢在 600 °C 超临界燃烧锅炉中氧化行为的影响：基于界面特征的机理

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-10-22 DOI: 10.1007/s40195-024-01789-8

Tianyi Zhang, Chenjun Yu, Bo Xiao, Ju Liu, Zhongliang Zhu, Naiqiang Zhang

引用次数: 0

ZIF-8 Modified Ce–Sol–gel Film on Rebar for Enhancing Corrosion Resistance 用于增强钢筋耐腐蚀性的 ZIF-8 改性水泥溶胶凝胶薄膜

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-10-12 DOI: 10.1007/s40195-024-01768-z

Yanwei Zeng, Peng Xu, Guoqiang Liu, Tianguan Wang, Bing Lei, Zhiyuan Feng, Ping Zhang, Guozhe Meng

{"title":"ZIF-8 Modified Ce–Sol–gel Film on Rebar for Enhancing Corrosion Resistance","authors":"Yanwei Zeng, Peng Xu, Guoqiang Liu, Tianguan Wang, Bing Lei, Zhiyuan Feng, Ping Zhang, Guozhe Meng","doi":"10.1007/s40195-024-01768-z","DOIUrl":"10.1007/s40195-024-01768-z","url":null,"abstract":"<div>Chloride-induced corrosion of steel reinforcement is the key factor leading to the degradation of reinforced concrete building durability. Improving the corrosion resistance of oxide scale of rebar has always been a research hotspot in the field of civil engineering materials. A ZIF-8 modified Ce–Sol–gel (ZCS) film was prepared on oxide scale of plain steel rebars by sol–gel method. It is observed that the |Z|0.01 Hz value of the ZCS film reached 320 kΩ cm2, which is about 29 times higher than that of blank rebar in simulated concrete pore (SCP) solution with 0.1 M NaCl. Then, they were inserted into mortar block and curing them in a curing box at T = 20 ± 2 °C and RH = 95 ± 2% for 28 days. Subsequently, these samples were subject to electrochemical impedance spectroscopy in 3.5 wt% NaCl. The |Z|0.01 Hz value of the rebar with the ZCS film was six times higher than that of the blank rebar after immersing for 20 days, resulting in an overall increase in corrosion resistance for rebar. The results indicated that the modification by ZIF-8 could reduce the porosity of Ce–sol–gel (CS) film and improved the “labyrinth effect” of the film. Additionally, the negative charge on the surface of ZIF-8 in alkaline condition increased the repulsion effect with Cl−, significantly reducing the sensitivity of rebar to Cl−.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"37 12","pages":"2121 - 2135"},"PeriodicalIF":2.9,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645721","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

Design of Ultra-Strong As-Cast Titanium Alloy at 600 ℃ by Using Cluster Formula 利用簇式公式设计 600 ℃ 超强铸造钛合金

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-10-12 DOI: 10.1007/s40195-024-01778-x

Zhihao Zhu, Cenyang Wang, Tianyu Liu, Shuang Zhang, Chuang Dong

{"title":"Design of Ultra-Strong As-Cast Titanium Alloy at 600 ℃ by Using Cluster Formula","authors":"Zhihao Zhu, Cenyang Wang, Tianyu Liu, Shuang Zhang, Chuang Dong","doi":"10.1007/s40195-024-01778-x","DOIUrl":"10.1007/s40195-024-01778-x","url":null,"abstract":"<div>A Ti–5.4Al–6.4Zr–6.2Sn–0.4Mo–1.6W–0.4Nb–3.2Ta–0.5Si alloy is designed following cluster formula approach that achieves a strength level of 1 GPa at 600 ℃ in the as-cast state, superior to any existing high-temperature Ti alloys. Its composition is formulated by 17 basic units, α-{[Al-Ti12](AlTi2)}12 + β-{[Al-Ti12Zr2](Mo0.125Nb0.125Ta0.5W0.25Sn1.5Si0.5)}5, each unit covering a nearest-neighbor cluster plus a few next-neighbor glue atoms. This design is on the basis of the composition formula of Ti65 alloy, with an enhanced β stability via more Zr, Mo, Nb, Ta, W, Sn, and Si co-alloying. Upon copper-mold pour casting, this alloy shows a good microstructure stability. In tensile testing below at 650 ℃, its α plates thickness is nearly at the same level of 0.2 μm, which is much smaller than 0.7–0.8 μm of Ti65 at the same condition. The changes in volume fraction of β phase are increased by 86%, much less than by 105% in Ti65. Its room-temperature strength reaches the ultra-high-strength level, with an ultimate tensile strength of 1328 MPa and a yield strength of 1117 MPa, with a moderate elongation of 3.8%. At 600 ℃, its ultimate tensile strength of 1017 MPa and yield strength of 936 MPa are superior to those of any existing high-temperature Ti alloys, with an elongation of 7.2%. At 650 ℃, its ultimate tensile strength of 848 MPa still maintains a high level.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"37 12","pages":"2068 - 2082"},"PeriodicalIF":2.9,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645722","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 Evolution and High Strength-Ductility Synergy of Ti-13Nb-13Zr-2Ta Alloy Fabricated by Laser Powder Bed Fusion 激光粉末床熔融技术制造的 Ti-13Nb-13Zr-2Ta 合金的微观结构演变和高强度-延展性协同作用

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-09-29 DOI: 10.1007/s40195-024-01763-4

Libo Zhou, Biao Peng, Jian Chen, Yanjie Ren, Yan Niu, Wei Qiu, Jianzhong Tang, Zhou Li, Wei Chen, Weiying Huang, Cong Li

{"title":"Microstructure Evolution and High Strength-Ductility Synergy of Ti-13Nb-13Zr-2Ta Alloy Fabricated by Laser Powder Bed Fusion","authors":"Libo Zhou, Biao Peng, Jian Chen, Yanjie Ren, Yan Niu, Wei Qiu, Jianzhong Tang, Zhou Li, Wei Chen, Weiying Huang, Cong Li","doi":"10.1007/s40195-024-01763-4","DOIUrl":"10.1007/s40195-024-01763-4","url":null,"abstract":"<div>This work systematically investigates the densification, microstructure evolution and the attainment of high strength-ductility in Ti-13Nb-13Zr-2Ta alloy processed by laser powder bed fusion (LPBF). A narrow and viable process window (Plaser power = 175 W, vscanning speed = 1000 mm/s, hscanning distance = 0.1 mm and dlayer thickness = 0.03 mm) was accordingly determined and the relative density of Ti-13Nb-13Zr-2Ta alloy reaches 99.76%. The depth of molten pool increases gradually with the increase of energy density, and the relationship between the depth of molten pool and energy density has been quantitatively described. Three types of α′ martensites with average grain width less than 3 μm can be observed in the LPBF-fabricated Ti-13Nb-13Zr-2Ta alloys, attributed to the significantly high cooling rate and remelting process. The fine grain size, high density dislocations, nanotwins, ordered oxygen complexes and α + α″ heterostructure all contributed to the high strength (1037.75 ± 25.18 MPa) and ductility (20.32% ± 1.39%) of LPBF-fabricated Ti-13Nb-13Zr-2Ta alloy in this work.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"37 12","pages":"2029 - 2044"},"PeriodicalIF":2.9,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645703","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

Improvement of Formation, Microstructure and Mechanical Properties of TIG Welded TC4 Titanium Alloy by Ultrasonic Coaxial Radiation 超声波同轴辐射改善 TIG 焊接 TC4 钛合金的成形、显微组织和机械性能

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-09-23 DOI: 10.1007/s40195-024-01766-1

Yihao Gao, Boqiao Ren, Yunhao Chen, Xinchen Sui, Xiaohui Zhao, Chenglei Fan, Chao Chen

引用次数: 0

Achieving Twin Strengthening in Bulk Aluminum via Adding Nanoparticles Combined with Tailoring Hot Pressing Temperature 通过添加纳米颗粒和调整热压温度实现散装铝的双倍强度

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-09-15 DOI: 10.1007/s40195-024-01771-4

Ke Zhao, Zhongying Duan, Jinling Liu, Linan An

引用次数: 0

Effect of Al on Microstructure and Mechanical Properties of ATI 718Plus by Laser Additive Manufacturing 激光增材制造技术中铝对 ATI 718Plus 显微结构和力学性能的影响

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-09-15 DOI: 10.1007/s40195-024-01764-3

Zhipeng Zhang, Jide Liu, Xinguang Wang, Zhaokuang Chu, Yizhou Zhou, Jianjun Wang, Jinguo Li

{"title":"Effect of Al on Microstructure and Mechanical Properties of ATI 718Plus by Laser Additive Manufacturing","authors":"Zhipeng Zhang, Jide Liu, Xinguang Wang, Zhaokuang Chu, Yizhou Zhou, Jianjun Wang, Jinguo Li","doi":"10.1007/s40195-024-01764-3","DOIUrl":"10.1007/s40195-024-01764-3","url":null,"abstract":"<div>To clarify the mechanism of the role of Al element in the additive manufacturing of Ni-based superalloys, ATI 718Plus alloys with varying Al contents (1, 3, and 5 wt%) were fabricated using the laser additive manufacturing and the effects of Al content on the microstructure and mechanical properties were systematically analyzed. The experimental and CALPHAD simulation results show that with the increase in Al addition, the freezing range of the alloys was lowered, but this has a paradoxical effect on the susceptibility of the alloy to hot-tearing and solid-state cracking. The addition of Al increased the γ′ and Laves phase volume fractions and suppressed the precipitation of the η phase. Simultaneously improving γ/γ′ lattice misfits effectively promoted the transformation of γ′ phase from spherical to cubic. The precipitation of NiAl phase in the 5 wt% Al-added alloy was determined, the formation mechanism of NiAl phase was analyzed, and the solidification sequence of the precipitated phase in the alloy was summarized. In addition, with the increase in Al addition, the microhardness of the alloy increased gradually, the tensile strength increased at first and then decreased, but the plasticity deteriorated seriously. The insights gained from this study offer valuable theoretical guidance for the strategic compositional design of additively manufactured Ni-based superalloys destined for deployment under extreme conditions.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"37 11","pages":"1891 - 1906"},"PeriodicalIF":2.9,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142438828","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

Machine Learning-Based Comprehensive Prediction Model for L12 Phase-Strengthened Fe–Co–Ni-Based High-Entropy Alloys 基于机器学习的 L12 相强化铁-铜-镍基高熵合金综合预测模型

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-09-15 DOI: 10.1007/s40195-024-01774-1

Xin Li, Chenglei Wang, Laichang Zhang, Shengfeng Zhou, Jian Huang, Mengyao Gao, Chong Liu, Mei Huang, Yatao Zhu, Hu Chen, Jingya Zhang, Zhujiang Tan

{"title":"Machine Learning-Based Comprehensive Prediction Model for L12 Phase-Strengthened Fe–Co–Ni-Based High-Entropy Alloys","authors":"Xin Li, Chenglei Wang, Laichang Zhang, Shengfeng Zhou, Jian Huang, Mengyao Gao, Chong Liu, Mei Huang, Yatao Zhu, Hu Chen, Jingya Zhang, Zhujiang Tan","doi":"10.1007/s40195-024-01774-1","DOIUrl":"10.1007/s40195-024-01774-1","url":null,"abstract":"<div>L12 phase-strengthened Fe–Co–Ni-based high-entropy alloys (HEAs) have attracted considerable attention due to their excellent mechanical properties. Improving the properties of HEAs through conventional experimental methods is costly. Therefore, a new method is needed to predict the properties of alloys quickly and accurately. In this study, a comprehensive prediction model for L12 phase-strengthened Fe–Co–Ni-based HEAs was developed. The existence of the L12 phase in the HEAs was first predicted. A link was then established between the microstructure (L12 phase volume fraction) and properties (hardness) of HEAs, and comprehensive prediction was performed. Finally, two mutually exclusive properties (strength and plasticity) of HEAs were coupled and co-optimized. The Shapley additive explained algorithm was also used to interpret the contribution of each model feature to the comprehensive properties of HEAs. The vast compositional and process search space of HEAs was progressively screened in three stages by applying different prediction models. Finally, four HEAs were screened from hundreds of thousands of possible candidate groups, and the prediction results were verified by experiments. In this work, L12 phase-strengthened Fe–Co–Ni-based HEAs with high strength and plasticity were successfully designed. The new method presented herein has a great cost advantage over traditional experimental methods. It is also expected to be applied in the design of HEAs with various excellent properties or to explore the potential factors affecting the microstructure/properties of alloys.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"37 11","pages":"1858 - 1874"},"PeriodicalIF":2.9,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142438827","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, Mechanical and Wear Resistance Properties of AlCoCrFeNi2.1-xNi3Al Eutectic High-Entropy Alloy Matrix Composites AlCoCrFeNi2.1-xNi3Al 共晶高熵合金基复合材料的显微结构、力学性能和耐磨性能

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-09-15 DOI: 10.1007/s40195-024-01772-3

Li Li, Xiao Kong, Hui Jiang, Wenna Jiao, Di Jiang, Jichao Ren

{"title":"Microstructure, Mechanical and Wear Resistance Properties of AlCoCrFeNi2.1-xNi3Al Eutectic High-Entropy Alloy Matrix Composites","authors":"Li Li, Xiao Kong, Hui Jiang, Wenna Jiao, Di Jiang, Jichao Ren","doi":"10.1007/s40195-024-01772-3","DOIUrl":"10.1007/s40195-024-01772-3","url":null,"abstract":"<div>AlCoCrFeNi2.1-xNi3Al (x = 0, 5.0, 7.5, and 10 wt%, denoted as Ni3Al0, Ni3Al5.0, Ni3Al7.5, and Ni3Al10) eutectic high-entropy alloy (EHEA) matrix composites were fabricated by mechanical alloying and spark plasma sintering methods. The effects of Ni3Al content on the microstructures, mechanical and wear properties of AlCoCrFeNi2.1 EHEA were investigated. The results indicate that the AlCoCrFeNi2.1-xNi3Al composites present cellular grid morphologies composing of FCC/Ll2 and B2 phases, and a small amount of Al2O3 and Cr7C3 phases. The addition of Ni3Al significantly enhanced the compressive yield strength, compressive fracture strength, compressive strain and wear properties of the AlCoCrFeNi2.1 composites. In particular, the Ni3Al10 composite exhibits excellent comprehensive mechanical properties. The compressive yield strength, compressive fracture strength and compressive strain of the Ni3Al10 composite, are 1845 MPa, 2301 MPa and 10.1%, respectively. The friction coefficient, wear width and depth, and mass loss of the Ni3Al10 composite were 0.40, 0.9 mm, 20.5 mm, 0.016 g, respectively. Moreover, the wear mechanism of the Ni3Al10 composite is major abrasive wear with a small amount of adhesive wear.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"37 12","pages":"2019 - 2028"},"PeriodicalIF":2.9,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259452","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

Strengthening Mechanisms and Mechanical Characteristics of Heterogeneous CNT/Al Composites by Finite Element Simulation 通过有限元模拟研究异质 CNT/Al 复合材料的强化机理和力学特性

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-09-15 DOI: 10.1007/s40195-024-01767-0

Hui Feng, Shu Yang, Shengyuan Yang, Li Zhou, Junfan Zhang, Zongyi Ma

{"title":"Strengthening Mechanisms and Mechanical Characteristics of Heterogeneous CNT/Al Composites by Finite Element Simulation","authors":"Hui Feng, Shu Yang, Shengyuan Yang, Li Zhou, Junfan Zhang, Zongyi Ma","doi":"10.1007/s40195-024-01767-0","DOIUrl":"10.1007/s40195-024-01767-0","url":null,"abstract":"<div>The refined explicit finite element scheme considering various strengthening mechanisms and damage modes is proposed for simulation of deformation processes and mechanical properties of carbon nanotube (CNT)-reinforced bimodal-grained aluminum matrix nanocomposites. Firstly, the detailed microstructure model is established by constructing the geometry models of CNTs and grain boundaries, which automatically incorporates grain refinement strengthening and load transfer effect. Secondly, a finite element formulation based on the conventional theory of mechanical-based strain gradient plasticity is developed. Furthermore, the deformation and fracture modes for the nanocomposites with various contents and distributions of coarse grains (CGs) are explored based on the scheme. The results indicate that ductility of the composites first increases and then decreases as the content of CGs rises. Moreover, the dispersed distribution exhibits better ductility than concentrated one. Additionally, grain boundaries proved to be the weakest component within the micromodel. A series of interesting phenomena have been observed and discussed upon the refined simulation scheme. This work contributes to the design and further development of CNT/Al nanocomposites, and the proposed scheme can be extended to various bimodal metal composites.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"37 12","pages":"2106 - 2120"},"PeriodicalIF":2.9,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645605","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