17CrNiMo6钢锭锻裂分析  

Fracture Analysis of 17CrNiMo6 Steel Ingot

作　　者：程书海 赵益洛 胡寒婷 

机构地区：[1]中信重工机械股份有限公司计量检测中心,河南471039 [2]中机十院国际工程有限公司,河南471003

出　　处：《大型铸锻件》2017年第6期44-46,62,共4页Heavy Casting and Forging

摘　　要：在初锻压下量不大的情况下,发现17CrNiMo6钢锭锭身出现间断分布的横向裂纹,对钢锭开裂原因进行了分析。结果表明,由于锻造加热温度过高,晶界发生熔化,导致初锻时钢锭表面产生裂纹。Transverse cracks appeared discontinuously in the steel ingot at the beginning of forging under insufficient pressure,and the reason was analyzed. The results show that the forging temperature was too high,and the grain boundary melt,this made the crack appeared on the surface of the steel ingot at the beginning of forging.

关 键 词：钢锭 裂纹 过烧 

分 类 号：TG115[金属学及工艺—物理冶金]