理化检验-物理分册2025，Vol.61Issue(7)：27-31,5.DOI:10.11973/lhjy-wl240111
GCr15轴承钢的高温力学性能
High temperature mechanical properties of GCr15 bearing steel
王程明 1赵楠 1白丽娟 1刘丽君1
作者信息
- 1. 河北河钢材料技术研究院,石家庄 050000
- 折叠
摘要
Abstract
Taking a GCr15 bearing steel as the research object,the high temperature tensile test at different temperatures was carried out by thermal simulation testing machine.The high temperature thermoplastic curve of the test steel was drawn,and the brittle temperature range was found.The fracture morphology of GCr15 bearing steel was observed by scanning electron microscope,and the microstructure near the fracture was observed by optical microscope.The high temperature mechanical properties of GCr15 bearing steel were comprehensively studied.The results show that there was only the third brittle interval in the test temperature range,which was 600-850℃.The plastic range of the test steel was 900-1 250℃.In actual production,the temperature in the plastic range of 900-1 250℃should be selected to straighten the test steel,which could reduce the number of cracks.关键词
GCr15轴承钢/高温热塑性/断口形貌/第Ⅲ脆性区间/力学性能Key words
GCr15 bearing steel/high temperature thermoplasticity/fracture morphology/Ⅲ brittle interval/mechanical property分类
矿业与冶金引用本文复制引用
王程明,赵楠,白丽娟,刘丽君..GCr15轴承钢的高温力学性能[J].理化检验-物理分册,2025,61(7):27-31,5.
