Influencing Mechanism of Ni Clad Layer on Atomic Diffusion Behavior of Titanium/Steel Brazing Joints

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	Influencing Mechanism of Ni Clad Layer on Atomic Diffusion Behavior of Titanium/Steel Brazing Joints
	Zhang Pengxian; Ma Chiyuan; Yu Haiyu
刊名	RARE METAL MATERIALS AND ENGINEERING
	2016-02
卷号	45 期号:2 页码:449-453
关键词	electroless nickel plating atomic diffusion shear strength intermetallic compound
ISSN号	1002-185X
英文摘要	Brittle intermetallic compounds in brazing joints of titanium and steel easily worsen their weld organization and mechanical properties. In order to solve this problem, a series of contrast tests in which the Ni layer was plated on the matching surface of base metal or not were conducted and the influencing mechanism of Ni clad layer on the atomic diffusion behavior, microstructure and mechanical properties of the brazing joint were investigated. The results show that the Ni layer blocks the atom diffusion of brazing joints; however, the degrees of obstruction are different among Fe, Ti and other atoms. The difference is closely related to the physical location of Ni layer in the joint region. The obstruction of Ni layer alters osmotic concentration of the atoms, slows down the metallurgical reaction degree, and reduces the content of brittle intermetallic compounds. Consequently, Ni clad layer can effectively improve the microstructure and mechanical properties of the brazing joints.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000371454300036
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33777]
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材料科学与工程学院
通讯作者	Zhang Pengxian
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Zhang Pengxian,Ma Chiyuan,Yu Haiyu. Influencing Mechanism of Ni Clad Layer on Atomic Diffusion Behavior of Titanium/Steel Brazing Joints[J]. RARE METAL MATERIALS AND ENGINEERING,2016,45(2):449-453.
APA	Zhang Pengxian,Ma Chiyuan,&Yu Haiyu.(2016).Influencing Mechanism of Ni Clad Layer on Atomic Diffusion Behavior of Titanium/Steel Brazing Joints.RARE METAL MATERIALS AND ENGINEERING,45(2),449-453.
MLA	Zhang Pengxian,et al."Influencing Mechanism of Ni Clad Layer on Atomic Diffusion Behavior of Titanium/Steel Brazing Joints".RARE METAL MATERIALS AND ENGINEERING 45.2(2016):449-453.