摘要
通过断口检查、化学分析、金相检验和硬度测试等方法,对某传动轴裂纹进行了检诊断和原因分析。结果表明:该传动轴的裂纹性质为氢脆裂纹。因感应淬火工艺不当,使该端心部淬透,硬度增高,氢脆敏感性增大是其氢脆裂纹产生的主要原因。
The crack of transmission shaft was diagnosed and analyzed by means of fracture surface examination,chemical composition analysis,metallographic examination and hardness testing.The results show that the crack feature of transmission shaft is of phydrogen embrittlement.The main reason for the crack embrittlement is improper induction hardening technology which results in the hydrogen embrittlement sensitivity increase.
作者
季献余
刘松
JI Xianyu;LIU Song(Nanjing Kangni Mechanical&Electrical Co.,Ltd.,Nanjing 210046,China;AVIC Nanjing Engineering Institute of Aircraft Systems,Nanjing 211106,China)
出处
《机械制造与自动化》
2021年第3期62-63,67,共3页
Machine Building & Automation
关键词
传动轴
裂纹
氢脆
感应淬火
transmission shaft
crack
hydrogen embrittlement
induction hardening
