Electrochemical cold drawing of in situ Mg2Sip/AM6OB composite: A comparison with the AM6OB alloy

doi:10.1016/j.jmatprotec.2016.09.007

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	Electrochemical cold drawing of in situ Mg2Sip/AM6OB composite: A comparison with the AM6OB alloy
	Li, L. L.; Chen, T. J.; Zhang, S. Q.; Yan, F. Y.
刊名	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
	2017-02
卷号	240 页码:33-41
关键词	Electrochemical cold drawing Mg-based composite Electrochemical plasticization Work hardening
ISSN号	0924-0136
DOI	10.1016/j.jmatprotec.2016.09.007
英文摘要	The effects of different processing parameters on the electrochemical cold drawing of Mg2Sip/AM60B composites were investigated; the AM6OB matrix alloy was also examined for comparison. Compared with the drawing in air, the electrochemical cold drawing significantly reduced both the drawing force and surface hardness of the composite, although the electrochemical plasticization of the composite was relatively lower than that of the alloy, owing to the presence of Mg2Si particles. Notably, the drawing force continuously decreased as the current density increased; however, when the bar surface was largely covered by a thick corrosion layer, this behavior changed, i.e., the drawing force increased rather than decreased. The surface layer could result in an increase in friction force between the bar and the die, and might create a barrier to dislocation exit. Increasing the drawing speed decreased the plasticizing action by reducing the electrochemical reaction time between electrolyte and material surface and by enhancing work hardening per unit time. This phenomenon was more evident in the composite because of both the lower corrosion rate and higher work -hardening rate, due to the presence of Mg2Si particles. (C) 2016 Elsevier B.V. All rights reserved.
资助项目	International Scientific and Technological Cooperation Project of Gansu Province, China[1504WKCA021]
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000389088200004
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33374]
专题	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
通讯作者	Chen, T. J.
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	Li, L. L.,Chen, T. J.,Zhang, S. Q.,et al. Electrochemical cold drawing of in situ Mg2Sip/AM6OB composite: A comparison with the AM6OB alloy[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2017,240:33-41.
APA	Li, L. L.,Chen, T. J.,Zhang, S. Q.,&Yan, F. Y..(2017).Electrochemical cold drawing of in situ Mg2Sip/AM6OB composite: A comparison with the AM6OB alloy.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,240,33-41.
MLA	Li, L. L.,et al."Electrochemical cold drawing of in situ Mg2Sip/AM6OB composite: A comparison with the AM6OB alloy".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 240(2017):33-41.