| Influence of feedstock powder on microstructure and mechanical properties of Ta cold spray depositions | |
| Tang, Junrong1,2; Zhao, Zhipo1,2; Li, Ning1,2; Qiu, Xiang1,2; Shen, Yanfang1; Cui, Xinyu1; Du, Hao1; Wang, Jiqiang1; Xiong, Tianying1 | |
| Corresponding Author | Wang, Jiqiang(jqwang11s@imr.ac.cn) ; Xiong, Tianying(tyxiong@imr.ac.cn) |
| 2019-11-15 | |
| Source Publication | SURFACE & COATINGS TECHNOLOGY
 |
| ISSN | 0257-8972 |
| Volume | 377Pages:10 |
| Abstract | 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. |
| Keyword | Cold spray Ta Feedstock powder Microstructure Mechanical properties |
| DOI | 10.1016/j.surfcoat.2019.124903 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| WOS ID | WOS:000488417800024 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/135661 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Jiqiang; Xiong, Tianying |
| Affiliation | 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 |
| Recommended Citation 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. |
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