Inconel 713C Coating by Cold Spray for Surface Enhancement of Inconel 718

Metals

Sung Chyn Tan¹  Adrian Wei-Yee Tan²  Kaiqiang Wu²  Erjia Liu²  Wei Zhou²  Wen Sun²  Sin Wei Chee³ 

[1] Rolls-Royce Singapore Pte. Ltd., 1 Seletar Aerospace Crescent, Singapore 797575, Singapore;Rolls-Royce@NTU Corporate Laboratory, Nanyang Technological University, 65 Nanyang Drive, Singapore 637460, Singapore;School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;

关键词: cold spray;    additive manufacturing;    Inconel 713C;    Inconel 718;    coating;    wear;   

DOI  :  10.3390/met11122048

来源: DOAJ

【 摘 要 】

Inconel 713C is a nickel-based superalloy usually considered as a material of poor weldability due to its susceptibility to hot cracking in the heat-affected zones. Cold spray, a solid-state deposition technology that does not involve melting, can be proposed as a methodology to deposit Inconel 713C for surface enhancement of other target components. In this study, Inconel 713C coating was deposited on Inconel 718 substrate with a high-pressure cold spray system. The coating was characterized in terms of microstructure, hardness, and wear properties. The cold-sprayed Inconel 713C coating has a low porosity level and refined grain structures. Microhardness of the Inconel 713C coating was much higher than the Inconel 718 substrate. The sliding wear tests showed that the wear resistance of the cold-sprayed Inconel 713C coating is three times higher than the Inconel 718 substrate, making the coating a suitable protective layer. The main wear mechanisms of the coating include oxidation, tribo-film formation, and adhesive wear.

【 授权许可】

Unknown