Impact sliding wear behavior of Stellite 6 and Stellite 12 hardfacings

Impact-sliding wear failures mostly occur in complex tribological contact systems such as working parts of combustion engines, metal-forming dies, etc. The impact-sliding test method allows for examining both the effect of cyclic impact and sliding contacts. In this study, the impact-sliding wear test was conducted on Stellite 6 and Stellite 12 hardfacings produced by using Tungsten Inert Gas welding was investigated at room and high temperatures. Microstructural examinations and impact-sliding wear tests revealed that even though examined hardfacings exhibited almost similar microstructural features, the impact-sliding wear loss of the Stellite 12 hardfacing was relatively higher when compared to Stellite 6 hardfacing both at room temperature and 600 degrees C.