ZCuAl8Mn14Fe3Ni2锻造开裂原因分析

针对ZCuAl8Mn14Fe3Ni2合金在锻造过程中外圆部分发生开裂问题,通过对开裂部位进行宏观和微观组织观察,从原材料及锻造工艺两方面对开裂原因进行分析。结果表明,锻造时由于锻造工艺不合理,心部与外圆塑性变形能力不一致,且原材料中的原始缺陷未得到有效愈合,使得材料在锻造时发生开裂。通过对锻造工艺进行优化,成功锻造出了Φ920 mm×Φ440 mm×110 mm的环坯。

Crack Analysis on the Forging of ZCuAl8Mn14Fe3Ni2

The outer circle of ZCuAl8Mn14Fe3Ni2 alloy is cracked during the forging process. The causes of the cracking are analyzed from both the material and forging process by observing the macrostructure and microstructure of the cracked position. The results show that the inappropriate forging process results in the inconsistency of the plastic deformation of the core and outer circle, and that the defects are unhealed effectively, which can cause the material to crack during the forging process. By optimizing the forging process, the ring blank of Φ920 mm×Φ440 mm×110 mm is successfully forged.