|About this Abstract
||Materials Science & Technology 2019
||Failure Prevention and Unconventional Failures
||Cold Spray for Cavitation Erosion Protection for Hydropower Applications
||Xiujuan Jiang, Nicole Overman, Kenneth Ross
|On-Site Speaker (Planned)
This study investigated the relevant properties of different materials using solid phase processing—cold spray technology. Stainless steel (SS) 316, Inconel 625 and CrC-NiCr materials were cold spray deposited onto base metal SS 316, respectively. Cold spray achieved dense uniform deposits with low level porosity, and intimate contact between the deposit and the base metal was observed. Grain size refinement was observed in the deposits and nanocrystallization was observed across the interfacial area. Cold sprayed deposits exhibited improved hardness in contrast to that of the base metal SS 316. The cavitation erosion resistance of the deposits was evaluated with a cavitation erosion jet adhering to ASTM G134. Both Inconel 625 and SS 316 achieved better cavitation erosion resistance compared to that of SS 316 base metal, with the former close to 4 times improvement.
||Definite: At-meeting proceedings