| INFLUENCE OF SUBSTRATE MECHANICAL PROPERTIES ON DEPOSITION BEHAVIOUR OF 316L STAINLESS STEEL POWDER | |
| Ma Guanglu1,2; Cui Xinyu1; Shen Yanfang1; Cinca, Nuria2; Guilemany, Josep M.2; Xiong Tianying1 | |
| Corresponding Author | Cui Xinyu(xycui@imr.ac.cn) |
| 2016-12-12 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 52Issue:12Pages:1610-1618 |
| Abstract | 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. |
| Keyword | 316L stainless steel mechanical properties of substrate deposition behavior |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.11900/0412.1961.2016.00153 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51671205] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000391244600016 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/123612 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Cui Xinyu |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Barcelona, Thermal Spray Ctr CPT, Barcelona 08028, Spain |
| Recommended Citation 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. |
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