The mass loss of the specimen block before and after wear was measured by an electronic analytical balance with a sensitivity of 0.1 mg. The wear surface morphology of the specimen block was observed by optical microscope and scanning electron microscope.
Nickel-chromium (NiCr) alloy powder with a purity of more than 96% was used as the base, with the addition of a certain amount of molybdenum (Mo), aluminum (Al), titanium (Ti), and boron (B) powders. Then, different mass fractions of LaF3 and 4% of cerium oxide (CeO2) and lanthanum oxide (La2O3) powders were added respectively.