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Vol.19, No.1, 42 ~ 49, 1981
Title
Studies on the Abrasive wear Resistance of the Medium Carbon Cr - Mo Steel
최수한Soo Han Choi, 이재영Jai Young Lee
Abstract
The abrasive wear resistance of medium carbon Cr-Mo steel which was quenched and tempered at various temperatures was studied in relation to its hardness and microstructure. Special emphasis was placed on the effect of the tempering temperatures. A controlled dry wear tester manufactured to simulate the abrasive condition was used to measure the wear weight loss, and wear rate. The wear rate (W_M) was inversely proportional to bulk hardness (H_B) and simply expressed by the following semi-empirical equation. W_M=300×(60)^(-n)×1/H_B, ㎎/㎏-m where n is strain hardening exponent. It is also found that the martensitic structure of the steel tempered approximately at 200∼250℃ shows excellent high stress abrasive wear resistance.
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