Abstract
GS-18NiMoCr36 steel was used to prepare fixed pin with different hardness. The rotating ring with hardness of 53HRC was prepared by 42CrMo steel. Under the different load conditions, MR-H3B high-speed ring on block wear tester was used to study the influence of different hardness matching friction pair wear performance. The results show that with the increase of load, the weight loss of wear has the law of increasing-decreasing-increasing. The form of wear is oxidation wear - adhesive wear -oxidation wear - adhesive wear. As the hardness of the fixed pin increases, the weight loss of wear tends to decrease, and the hardness of the material can be improved within a certain hardness range, which can significantly improve the wear resistance.
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