| Title |
Studies on the Abrasive wear Resistance of the Medium Carbon Cr - Mo Steel |
| Authors |
최수한(Soo Han Choi); 이재영(Jai 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. |