理化检验-物理分册2024，Vol.60Issue(4)：54-56,3.DOI:10.11973/lhjy-wl202404013
40Cr圆钢热顶锻开裂原因
Causes of hot upset forging cracking of 40Cr round steel
王妍1
作者信息
- 1. 天津航天长征技术装备有限公司,天津 300301
- 折叠
摘要
Abstract
Cracking occurred in hot upset forging of a 40Cr round steel.The causes of cracking were analyzed by means of macroscopic observation,chemical composition analysis,scanning electron microscope analysis and metallographic examination.The results show that the microstructure of 40Cr round steel crack defect was normal,and the content of non-metallic inclusions in the structure met the requirements of product standards.The defects on the upset forging base metal were caused by the surface scratches of the round steel during the rolling process.Finally,an improved method was proposed to avoid the recurrence of such problems.关键词
40Cr圆钢/热顶锻/轧制缺陷/划伤/显微组织Key words
40Cr round steel/hot upset forging/rolling defect/scratching/microstructure分类
矿业与冶金引用本文复制引用
王妍..40Cr圆钢热顶锻开裂原因[J].理化检验-物理分册,2024,60(4):54-56,3.
