Room-temperature sliding wear properties of laser melt deposited Cr13Ni5Si2/γ alloy

Abstract

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 (LMCD) process. The wear resistance of 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 high toughness and the high strength, as well as the transferred cover-layer on the worn surface of the alloy.