Heat Treatment of Metals ›› 2023, Vol. 48 ›› Issue (11): 250-253.DOI: 10.13251/j.issn.0254-6051.2023.11.041

• PROCESS RESEARCH • Previous Articles     Next Articles

Effect of cryogenic treatment on friction and wear properties of DC53 cold work die steel

Zhao Dongmei, Ni Lei, Jiang Dongxu, Ding Hongxing   

  1. Key Laboratory of Manufacturing Process Testing Technology of Ministry of Education, Southwest University of Science and Technology, Mianyang Sichuan 621010, China
  • Received:2023-06-12 Revised:2023-09-26 Online:2023-11-25 Published:2023-12-27

Abstract: Hardness and friction and wear properties of DC53 cold work die steel with different soaking time were tested by Rockwell hardness tester, friction and wear testing machine to investigate the effect of cryogenic treatment on its friction and wear properties. The results show that, after cryogenic treatment, the hardness of the DC53 cold work die steel changes a little, and the wear resistance is greatly improved. The friction and wear properties of the DC53 cold work die steel cryogenic treated for different time are better than those without cryogenic treatment. Increasing the cryogenic treatment time cannot further improve the properties of the material. The friction and wear properties of the material are better when the cryogenic treatment time is 2 h and 6 h, thereby, compared with the specimen without cryogenic treatment, the wear rate is reduced by 48.3% and 47.0%, respectively.

Key words: cryogenic treatment, cold work die steel, hardness, wear rate

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