Influence of feedstock powder on microstructure and mechanical properties of Ta cold spray depositions

doi:10.1016/j.surfcoat.2019.124903

CORC > 金属研究所 > 中国科学院金属研究所

	Influence of feedstock powder on microstructure and mechanical properties of Ta cold spray depositions
	Tang, Junrong 1,2; Zhao, Zhipo 1,2; Li, Ning 1,2; Qiu, Xiang 1,2; Shen, Yanfang 1; Cui, Xinyu 1; Du, Hao 1; Wang, Jiqiang 1; Xiong, Tianying 1
刊名	SURFACE & COATINGS TECHNOLOGY
	2019-11-15
卷号	377 页码:10
关键词	Cold spray Ta Feedstock powder Microstructure Mechanical properties
ISSN号	0257-8972
DOI	10.1016/j.surfcoat.2019.124903
通讯作者	Wang, Jiqiang(jqwang11s@imr.ac.cn) ; Xiong, Tianying(tyxiong@imr.ac.cn)
英文摘要	In this paper, three types of Ta feedstock powders [i.e., hydrogenation de-hydrogenation (HDH)-1, HDH-2 and mechanical pulverization (MP)] were deposited on Ti6Al4V substrate by cold spray and the influence of feedstock powder on microstructure and mechanical properties of the deposited coating was firstly studied. All depositions showed no significant oxidation, but grain refinement. Cold sprayed coatings revealed two distinct microstructures, a large number of ultrafine grains at highly deformed splat boundaries and original grains in the middle of the particles. Powder morphology influenced deposition quality more than propellant gas temperature. Results showed that the deposition prepared by porous HDH-1-Ta powders performed the best quality with the relatively flat section, the lowest porosity (0.93-1.77%), the highest deposition efficiency, the highest micro-hardness (345-441 HV0.1) and the decent adhesion bonding strength (39-41 MPa). This was mainly because HDH-1-Ta powders possess porous morphology and exhibit excellent compressibility and compaction behavior during deposition. Thus, porous HDH-1 powders may hold promise as a cost effective alternative for Ta cold spray depositions.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000488417800024
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/135660]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Jiqiang; Xiong, Tianying
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Tang, Junrong,Zhao, Zhipo,Li, Ning,et al. Influence of feedstock powder on microstructure and mechanical properties of Ta cold spray depositions[J]. SURFACE & COATINGS TECHNOLOGY,2019,377:10.
APA	Tang, Junrong.,Zhao, Zhipo.,Li, Ning.,Qiu, Xiang.,Shen, Yanfang.,...&Xiong, Tianying.(2019).Influence of feedstock powder on microstructure and mechanical properties of Ta cold spray depositions.SURFACE & COATINGS TECHNOLOGY,377,10.
MLA	Tang, Junrong,et al."Influence of feedstock powder on microstructure and mechanical properties of Ta cold spray depositions".SURFACE & COATINGS TECHNOLOGY 377(2019):10.