本文介绍了GCr15轴承钢套圈“亚温形变退火”的研究成果。论文以轴承钢亚温形变退火过程中的组织转变为依据,探讨了不均匀奥氏体形变、亚稳形变奥氏体等温转变和促进轴承钢碳化物球化的机理及工艺特点,并进行了技术经济评价。研究结果表明,GCr15轴承钢亚温形变退火工艺是一种适用于中小型轴承套圈的先进生产方式。 This paper introduces the research results of GCr15 bearing steel ferrule “sub-temperature deformation annealing ”. Based on the microstructural transformation during the sub-temperature deformation annealing of bearing steel, the mechanism and technological characteristics of inhomogeneous austenite transformation, metastable austenite transformation, and spheroidization of bearing steel were discussed. Technical and economic evaluation. The results show that, GCr15 bearing steel sub-temperature deformation annealing process is a suitable for small and medium sized bearing rings advanced production methods.