摘要
采用宏观检验、金相检验、化学成分分析及断口分析等方法,对20钢大型圆环锻件内部缺陷的类型及成因进行了分析。结果表明:该缺陷为白点,是因钢在热压力加工后冷却过程中产生的内应力造成的。
The types and causes of internal defects of 20 steel large ring forgings have been analyzed by means of macroscopic examination,metallographic examination,chemical composition analysis and fracture analysis.The results show that the defect is a white spot and it is caused by the internal stress of the steel during the cooling process after hot pressure machining.
作者
杜佳美
朱文凯
徐旋旋
Du Jiamei;Zhu Wenkai;Xu Xuanxuan
出处
《大型铸锻件》
2020年第6期50-52,共3页
Heavy Casting and Forging
关键词
锻件
超声检测
白点
forging
ultrasonic test
white spot
