DOI number:10.1007/s11665-016-2364-1

Journal:JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE

Key Words:compressor impeller blade, mechanical performance, plasma spray welding, remanufacturing, sulfide layers

Abstract:This study investigated the repulsive interaction of sulfide layers on compressor impeller blades remanufactured through plasma spray welding (PSW). Sulfide layers on the blades made of FV(520)B steel were prepared through multifarious corrosion experiments, and PSW was utilized to remanufacture blade specimens. The specimens were evaluated through optical microscopy, scanning electron microscopy, energy-dispersive spectroscopy, 3D surface topography, x-ray diffraction, ImageJ software analysis, Vicker’s micro-hardness test and tensile tests. Results showed a large number of sulfide inclusions in the fusion zone generated by sulfide layers embodied into the molten pool during PSW. These sulfide inclusions seriously degraded the mechanical performance of the blades remanufactured through PSW.

Indexed by:Journal paper

Discipline:Engineering

Document Type:J

Volume:25

Issue:12

Page Number:5343-5351

Translation or Not:no

Date of Publication:2016-12-28

Included Journals:SCI