Differential effects of Zn and Co solutes on the properties of Cu–Ni–Sn alloys

doi:10.1016/j.intermet.2020.106894

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Differential effects of Zn and Co solutes on the properties of Cu–Ni–Sn alloys
	Li, N.J.4; Li, X.N.4; Li, Z.M.4; Yu, Q.X.4; Zheng, Y.H.3; Hu, Y.L.4; Wang, Q.4; Dong, C.4; Jiang, Y.X.1,2; Zhang, X.W.1
	2020-10-01
关键词	Cobalt alloys Precipitation (chemical) Solid solutionsAtomic site occupations Composition analysis Composition optimization Comprehensive properties Discontinuous precipitation Microstructure and properties Solid solution strengthening Solution-treated alloys
卷号	125
DOI	10.1016/j.intermet.2020.106894
英文摘要	In order to solve the segregation and discontinuous precipitation of Cu–Ni–Sn alloys and explore the influence mechanism of solid soluble microelements on the microstructure and properties. Herein, based on the cluster-plus-glue-atom model, Zn or Co, with different solubilities in Cu, was selected as the fourth element in the way of replacing a small portion of Sn for the composition design of Cu–Ni–Sn–Zn (Co) series alloys. The solid solution forms and positions of Zn and Co solutes were revealed according to EPMA composition analysis and variation of the lattice parameter of the Cu matrix in solution treated alloys, and form atomic site occupation point of view, the influence of Zn or Co on solidus-liquidus temperature range were discussed. Furthermore, phase transformation and resistivity thermal stability with temperature rising were investigated and discussed utilizing results of variable temperature resistance. These results show that Zn solutes dissolve in the form of clusters, resulting in a strong solid solution strengthening, existing less effect on conductivity, and increasing comprehensive properties after long-term aging, which indicates that Zn can be a good candidate for the multi-component design of Cu–Ni–Sn alloys. These findings may offer new insights on composition optimization of Cu–Ni–Sn alloy. © 2020 Elsevier Ltd
会议录	Intermetallics
会议录出版者	Elsevier Ltd
语种	英语
ISSN号	09669795
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132646]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.CNMC Albetter Albronze Co., Ltd, Linqing; 252600, China 2.School of Materials Science and Engineering, Central South University, Changsha; 410083, China; 3.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 4.Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian; 116024, China;
推荐引用方式 GB/T 7714	Li, N.J.,Li, X.N.,Li, Z.M.,et al. Differential effects of Zn and Co solutes on the properties of Cu–Ni–Sn alloys[C]. 见:.