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Effect of microalloying with La and Nd on adiabatic shear behavior in ultra-coarse grained Cu alloy under quasistatic tensile loading

文献类型：期刊论文

作者Zhang, Mingyi1; Chen, Kunyu2; Li, Yang1; Wang, Wei1; Zhang, Lehui1; Huang, Chongyuan3,4; Ying, Puyou5; Li, Jiaqiang6; Huan, Yong3,4; Zhao, Chong7
刊名MATERIALS CHARACTERIZATION
出版日期2025-07-01
卷号225页码:13
关键词Adiabatic shear bands Cu alloy Deformation mechanism Multi-scale Rare earth
ISSN号1044-5803
DOI10.1016/j.matchar.2025.115105
通讯作者Zhao, Chong(zhaochong@imech.ac.cn) ; Xiao, Chi(xiaochi@imech.ac.cn) ; Liu, Fei(liufei_mse@imech.ac.cn)
英文摘要Generally, adiabatic shear bands (ASBs) are formed under the conditions of dynamic loading and high strain rate deformation. Recently, we have observed the formation of the ASBs in ultra-coarse grained copper (Cu) alloys under quasi-static tensile loading. Our experimental results extend the formation mechanism and conditions of the ASBs. The results show that the addition of trace La and Nd elements in pure copper can promote the randomization and diversification of deformation texture, and inhibit the dynamic recovery process. The deformation mechanism of the as-casted rare-earth modified Cu alloy mainly includes grain boundary coordination deformation, dislocation slip and adiabatic shear deformation. The strengthening mechanism of the alloy mainly involves dispersion strengthening, grain refinement strengthening and strain hardening. The ASBs are formed in the pure Cu and Cu alloys during quasi-static tensile deformation, which is mainly related to the dynamic recrystallization process and the low strain rate sensitivity of the ultra-coarse grained Cu alloys.
WOS关键词STRAIN-RATE SENSITIVITY ; STACKING-FAULT ENERGIES ; DYNAMIC RECRYSTALLIZATION ; ACTIVATION VOLUME ; BANDS ; COPPER ; NANOCRYSTALLINE ; DEFORMATION ; SIMULATIONS ; ELEMENTS
资助项目Institute 52, Collaborative Funding Initiatives[NBFJ2022-29] ; Inner Mongolia Key Technology Research Project[2021GG0273] ; Zhejiang Provincial Natural Science Foundation of China[LQ22E010007]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001487090400002
资助机构Institute 52, Collaborative Funding Initiatives ; Inner Mongolia Key Technology Research Project ; Zhejiang Provincial Natural Science Foundation of China
源URL[http://dspace.imech.ac.cn/handle/311007/101528]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Zhao, Chong; Xiao, Chi; Liu, Fei
作者单位1.Inner Mongolia Inst Met Mat, Baotou 014034, Peoples R China
2.Xian Aerosp Engine Co Ltd, Xian 710100, Peoples R China
3.Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
5.Taizhou Univ, Int Joint Inst Adv Coating Technol, Taizhou 318000, Peoples R China
6.AECC Hunan Aviat Powerplant Res Inst, Zhuzhou 412002, Peoples R China
7.Chinese Acad Sci, Inst Mech, Wide Range Flight Engn Sci & Applicat Ctr WESA, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Mingyi,Chen, Kunyu,Li, Yang,et al. Effect of microalloying with La and Nd on adiabatic shear behavior in ultra-coarse grained Cu alloy under quasistatic tensile loading[J]. MATERIALS CHARACTERIZATION,2025,225:13.
APA Zhang, Mingyi.,Chen, Kunyu.,Li, Yang.,Wang, Wei.,Zhang, Lehui.,...&Liu, Fei.(2025).Effect of microalloying with La and Nd on adiabatic shear behavior in ultra-coarse grained Cu alloy under quasistatic tensile loading.MATERIALS CHARACTERIZATION,225,13.
MLA Zhang, Mingyi,et al."Effect of microalloying with La and Nd on adiabatic shear behavior in ultra-coarse grained Cu alloy under quasistatic tensile loading".MATERIALS CHARACTERIZATION 225(2025):13.

入库方式： OAI收割

来源：力学研究所

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