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Vol.14, No.1, 100 ~ 101, 1976

Title

권식철 , 이재영

Abstract

In order to study the wear-resisting property of the austenitic high manganese steel, the wear rate per unit load was measured using the wear tester manufactured to simulate the abrasive condition. Hardness of the bulk and the abraded surface and the metallographic structure were also studied in relation to the abrasive wear resistance of the steel. It is shown that the wear rate per unit load (M) is related with each of the bulk hardness (H_B) and the abraded surface hardness (H_(A.S)) as follow: 1) M×10^5＝(14.008±1.758)－(0.0291±0.0046) H_(A.S) ㎎/㎝-㎏ 2) M＝24/1000(60)^(-n)×1/H_B ㎎/㎝-㎏ Expression 1) is empirical while expression 2) is semiempirical formula which has a relation with the bulk property of the steel. On the view of microstructure of the steel, it is found that the grain size (r) has no effect on the wear-resisting property of the steel, but the intercarbide spacing (d) has an marked influence on the M, and the obtained relationship is as follow: M×10^5－(5.4±0.3)－(43.0±6.07)×1/√d ㎎/㎝-㎏

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