赵子涵,燕敬祥,冯冰,张士玉,董志超,吴赟,黄莉兰

• 1:山东理工大学材料科学与工程学院
• 2:山东凯美瑞轴承科技有限公司

摘要(Abstract)：

研究了深冷处理时间对锻造态和激光沉积态GCr15轴承钢微观组织、物相组成、硬度、拉伸性能及耐磨性的影响。结果表明：深冷处理均能够使两种方式制备的GCr15轴承钢试样中的马氏体板条细化，碳化物的析出增多，促进残留奥氏体继续转变为马氏体，有效降低GCr15轴承钢试样中的残留奥氏体含量；随着深冷处理时间的延长，两种成型方式试样的显微硬度和耐磨性均逐渐提升，并均在深冷处理时间为32 h时达到最高值(锻造态(872.8±3.8) HV10,激光沉积态(984.2±6.6) HV10),同时经过32 h深冷处理后，锻造态和激光沉积态GCr15轴承钢的抗拉强度分别提升了126和32 MPa。

关键词(KeyWords)： GCr15轴承钢;激光粉末床熔融;深冷处理;耐磨性能;残留奥氏体

Abstract:

Keywords:

基金项目(Foundation): 山东省自然科学基金青年基金项目(ZR2021QA041);; 山东省科技型中小企业创新能力提升工程项目(2022TSGC2391,2023TSGC0924)

作者(Author): 赵子涵,燕敬祥,冯冰,张士玉,董志超,吴赟,黄莉兰

DOI: 10.13289/j.issn.1009-6264.2024-0350

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