The mass loss of specimen block before and after wear was measured by electronic analytical balance with sensitivity of 0.1 mg. The wear surface morphology of the specimen was observed by optical microscope and scanning electron microscope.
Nickel-chromium alloy powder with purity over 96% was used as the base material, adding a certain amount of molybdenum, aluminum, titanium and boron powder, then adding different mass fractions of LaF3 and 4% of CeO2, La2O3 powder respectively.