INFLUENCE OF SUBSTRATE MECHANICAL PROPERTIES ON DEPOSITION BEHAVIOUR OF 316L STAINLESS STEEL POWDER

doi:10.11900/0412.1961.2016.00153

IMR OpenIR

	INFLUENCE OF SUBSTRATE MECHANICAL PROPERTIES ON DEPOSITION BEHAVIOUR OF 316L STAINLESS STEEL POWDER
	Ma Guanglu 1,2; Cui Xinyu 1; Shen Yanfang 1; Cinca, Nuria 2; Guilemany, Josep M.2; Xiong Tianying 1
通讯作者	Cui Xinyu(xycui@imr.ac.cn)
	2016-12-12
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	52 期号:12 页码:1610-1618
摘要	Nowadays the theory of critical velocity of particles in cold spray has been already accepted generally. In the familiar semi-empirical formulas of the theory, only the properties and conditions of particles have been considered but there is no consideration of substrate. Yet most researches for effect of substrates' properties implied hardness of substrate was the most essential. However, little attention has been devoted to influence of other mechanical properties (e.g. Young's modulus and Poisson's ratio) and their cooperation on the deposition behavior. In order to study the effect systematically, 316L stainless steel particles were deposited by wipe test on six different substrates with a widely range of mechanical properties including Young's modulus, hardness and Poisson's ratio. They are pure Al, pure Cu, 7075T6 Al alloy, mild steel, Inconel625 and Ti6Al4V. The specimens have been investigated from morphology, cross-section and deposition efficiency. It is found that not only hardness but also Young's modulus and Poisson's ratio can affect deformation and deposition of bonded particles through playing a role in energy partition and bonding mechanism. In the case, the deformation of deposited particles is dependent on energy accepted by the particles, while the deposition efficiency is related to the bonding mechanism and energy accepted by substrate. According to the deformation level of the deposited particles, there are two kinds of substrate materials. On the one hand, bonding between particles with little deformation and their substrates is mainly dependent on mechanical interlock, in which both hardness and Young's modulus of the substrates are lower than that of the particle. Then a parameter, E-para has been calculated to predict the tendency of deposition efficiency for the situations. AZ91 alloy has been employed as substrate material in confirmatory experiment. Its result indicates that E-para is available for tendency prediction of the deposition efficiency of spherical-like deposited particle. On the other hand, the bonding mechanism of deposited particle with obviously flattening is more complex. In this situation, either hardness or Young's modulus of the substrates is higher than that of the particle. The more area of fresh metal contacts on the interface, the higher deposition efficiency is.
关键词	316L stainless steel mechanical properties of substrate deposition behavior
资助者	National Natural Science Foundation of China
DOI	10.11900/0412.1961.2016.00153
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51671205]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000391244600016
出版者	SCIENCE PRESS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/123612
专题	中国科学院金属研究所
通讯作者	Cui Xinyu
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Barcelona, Thermal Spray Ctr CPT, Barcelona 08028, Spain
推荐引用方式 GB/T 7714	Ma Guanglu,Cui Xinyu,Shen Yanfang,et al. INFLUENCE OF SUBSTRATE MECHANICAL PROPERTIES ON DEPOSITION BEHAVIOUR OF 316L STAINLESS STEEL POWDER[J]. ACTA METALLURGICA SINICA,2016,52(12):1610-1618.
APA	Ma Guanglu,Cui Xinyu,Shen Yanfang,Cinca, Nuria,Guilemany, Josep M.,&Xiong Tianying.(2016).INFLUENCE OF SUBSTRATE MECHANICAL PROPERTIES ON DEPOSITION BEHAVIOUR OF 316L STAINLESS STEEL POWDER.ACTA METALLURGICA SINICA,52(12),1610-1618.
MLA	Ma Guanglu,et al."INFLUENCE OF SUBSTRATE MECHANICAL PROPERTIES ON DEPOSITION BEHAVIOUR OF 316L STAINLESS STEEL POWDER".ACTA METALLURGICA SINICA 52.12(2016):1610-1618.