Abstract

Cryogenic treatment is the process of cooling a material to extremely low temperatures to generate enhanced mechanical and physical properties. The present investigation examines the effect of a deep cryogenic treatment on the enhancement of mechanical properties, such as the wear resistance, the corrosion resistance, the tensile strength, and the impact strength of the plunger material 100Cr6 bearing steel. An improvement in those properties of the deep cryogenically treated samples over the conventionally heat treated ones was found to be 50, 26, 13, and 27%, respectively. This study suggests that the formation of very small carbides dispersed in the tempered martensite structure can be the main reason for the enhancement of certain mechanical properties, along with the retained austenite transformations.

中文翻译：

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100Cr6轴承钢深冷处理效果的实验研究

摘要

低温处理是将材料冷却到极低温度以产生增强的机械和物理性能的过程。本研究探讨了深冷处理对提高柱塞材料 100Cr6 轴承钢机械性能（如耐磨性、耐腐蚀性、拉伸强度和冲击强度）的影响。与传统热处理样品相比，深低温处理样品的这些性能分别提高了 50%、26%、13% 和 27%。这项研究表明，在回火马氏体结构中分散的非常小的碳化物的形成以及残余奥氏体转变可能是某些机械性能增强的主要原因。