Tailoring microstructure and mechanical performance of the TC4 titanium alloy brazed joint through doping rare-earth element Dy into Ti-Cu-Ni filler alloy

doi:10.1016/j.jmapro.2019.12.044

CORC > 金属研究所 > 中国科学院金属研究所

	Tailoring microstructure and mechanical performance of the TC4 titanium alloy brazed joint through doping rare-earth element Dy into Ti-Cu-Ni filler alloy
	He, Yanming 1; Lu, Chuanyang 1; Ni, Chengyuan 2; Chen, Qingxia 1; Zheng, Wenjian 1; Wang, Donghong 4; Wei, Lianfeng 3; Wang, Limei 1; Sun, Yuan 6; Zou, Hai 5
刊名	JOURNAL OF MANUFACTURING PROCESSES
	2020-02-01
卷号	50 页码:255-265
关键词	Titanium alloy Micro-alloying Brazing Microstructure Mechanical properties
ISSN号	1526-6125
DOI	10.1016/j.jmapro.2019.12.044
通讯作者	Sun, Yuan(yuansun@imr.ac.cn) ; Zou, Hai(haire1993@163.com)
英文摘要	Doping trace amount of rare-earth (RE) elements into metallic materials will significantly enhance their physical properties, mechanical properties, and so on. In this work, traditional Ti-15Cu-15Ni (wt.%) filler alloy doped with different amounts of RE element Dy was employed to braze the Ti-6Al-4 V (TC4) alloy with the aim to achieve a high-quality joint. The results showed that the joint obtained was constructed by TC4/zone 2/zone 1/zone 2/TC4. Dy doping modified the microstructure of the solidification-induced zone 1, whereas the phase transformation-induced zone 2 (Widmanstatten structures) was hardly affected. The optimized amount of Dy doping was determined, while the interaction between Dy and filler alloy was clarified. The brazing process parameters also had a great impact on the microstructure of the TC4 joint, because they affected the diffusion ability of Cu and Ni toward parent metals, as well as the adsorption effect of Dy toward Cu and Ni. Among the brazing process parameters under investigation, the maximum average shear strength obtained reached 894.8 MPa, which was the greatest value reported for the TC4 brazed joint. The diffusion ability of Cu and Ni atoms toward the parent metals exceeded the binding effect of Dy toward Cu and Ni, leading to a complete Widmanstatten structure in the joint. The work performed can provide valuable guidance for the design of high-performance titanium alloy brazed joint.
资助项目	National Natural Science Foundation of China[51405439] ; Natural Science Foundation of Zhejiang Province[LY17E050019] ; Natural Science Foundation of Zhejiang Province[LQ16E060004]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000513922000026
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137534]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sun, Yuan; Zou, Hai
作者单位	1.Zhejiang Univ Technol, Inst Proc Equipment & Control Engn, Hangzhou 310014, Peoples R China 2.Quzhou Univ, Sch Mech Engn, Quzhou 324000, Peoples R China 3.Nucl Power Inst China, Sci & Technol Reactor Fuel & Mat Lab, Chengdu 610041, Peoples R China 4.Zhejiang Univ Technol, Sch Chem Engn, Hangzhou 310014, Peoples R China 5.Fudan Univ, Huashan Hosp, Dept Resp Med, Shanghai, Peoples R China 6.Chinese Acad Sci, Inst Met Res, Dept Superalloy, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	He, Yanming,Lu, Chuanyang,Ni, Chengyuan,et al. Tailoring microstructure and mechanical performance of the TC4 titanium alloy brazed joint through doping rare-earth element Dy into Ti-Cu-Ni filler alloy[J]. JOURNAL OF MANUFACTURING PROCESSES,2020,50:255-265.
APA	He, Yanming.,Lu, Chuanyang.,Ni, Chengyuan.,Chen, Qingxia.,Zheng, Wenjian.,...&Yang, Jianguo.(2020).Tailoring microstructure and mechanical performance of the TC4 titanium alloy brazed joint through doping rare-earth element Dy into Ti-Cu-Ni filler alloy.JOURNAL OF MANUFACTURING PROCESSES,50,255-265.
MLA	He, Yanming,et al."Tailoring microstructure and mechanical performance of the TC4 titanium alloy brazed joint through doping rare-earth element Dy into Ti-Cu-Ni filler alloy".JOURNAL OF MANUFACTURING PROCESSES 50(2020):255-265.