Plasma Transferred Arc Powder Surfacing Technology of Thrust Face |
| Journal |
Key Engineering Materials (Volumes 373 - 374) |
| Volume |
Surface Engineering |
| Edited by |
M.K. Lei, X.P. Zhu, K.W. Xu and B.S. Xu |
| Pages |
43-46 |
| DOI |
10.4028/www.scientific.net/KEM.373-374.43 |
| Online since |
March, 2008 |
| Authors |
Yao Hui Lv,
Bin Shi Xu,
Yong Hua Xiang,
Dan Xia,
Cun Long Liu
|
| Keywords |
Plasma Transferred Arc Powder Surfacing, Remanufacturing, Thrust Face |
| Abstract |
The thrust surface of W615 engine is remanufactured by plasma transferred arc (PTA)
powder surfacing technology. The Ni15 Nickle-based alloy powder is selected as deposited metal. By
optimizing the welding procedure, the coating is free of crack and pore. The microstructure
characteristics of deposition layer are investigated by metallographic microscope, and the
microhardness of the overlay is measured by vickers hardness tester. It is found that the heat affected
zone is narrow, the rate of dilution is low and the microhardness of deposition layer is about HV130
which is close to that of base metal. Furthermore, the hardness of welding surface can meet the needs
of the engine. |
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