Sliding wear properties of laser melt deposited Cr₁₃Ni₅Si₂/γ-Ni base alloy

A wear resistant alloy consisting of Cr₁₃Ni₅Si₂ ternary silicide dendrites and the interdendritic nickel base solid solution (γ) was designed and fabricated by the laser melting/continuous deposition process. Wear resistance of the Cr₁₃Ni₅Si₂/γ alloy was evaluated on an MM-200 block-on-wheel dry sliding wear tester at room temperature. Results indicate that the Cr₁₃Ni₅Si₂/γ alloy has excellent wear resistance and extremely low load-sensitivity of wear under dry sliding wear test conditions due to the good toughness, strength and the transferred cover-layer on the worn surface of the alloy.