苏丽婷,张福成,郑春雷,尤蕾蕾

• 1:燕山大学亚稳材料制备技术与科学国家重点实验室
• 2:洛阳LYC轴承有限公司

摘要(Abstract)：

经成分优化获得一种新型的贝氏体轴承钢GCr15SiMoAl,通过盐浴等温淬火不同时间及油淬工艺获得不同的组织,利用Gleeble3500研究了试验用钢充氢前后的压缩变形行为,并与常规的GCr15轴承钢进行了对比。结果表明,GCr15SiMoAl轴承钢经0.5h等温获得了贝氏体铁素体、残留奥氏体及马氏体的复合组织,其综合压缩性能最好;随着盐浴等温时间的延长,抗压强度逐渐降低,相对压缩率先升高后降低。且GCr15SiMoAl轴承钢在所有工艺下获得的性能均优于传统的GCr15轴承钢。氢对轴承钢的抗压强度影响较小,但是由于氢会促进残留奥氏体发生应变诱发马氏体转变,严重降低了轴承钢的塑性。

关键词(KeyWords)： 轴承钢;无碳化物贝氏体;压缩;氢脆

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展计划资助项目(“863”计划,2012AA03A504);; 河北省高等学校科学技术研究项目(QN2015100);; 燕山大学青年教师自主研究计划项目(15LGB006)

作者(Author): 苏丽婷,张福成,郑春雷,尤蕾蕾

DOI: 10.13289/j.issn.1009-6264.2017.02.018

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