15MnNbR钢板探伤不合格原因分析  

Causes of 15MnNbR Steel Plate Disqualification By Non-Destructive Test

作　　者：周佩[1] 

机构地区：[1]武汉钢铁股份有限公司轧板厂,湖北武汉430083

出　　处：《中国冶金》2006年第2期22-25,共4页China Metallurgy

摘　　要：某炼钢厂生产的15MnNbR钢按正常工艺轧制、正火、检验生产,钢板的力学性能、表面质量全部合格,但在进行超声波探伤检测时却出现了大量的不合格钢板。采用金相、电子探针分析了探伤不合格的原因,提出了工艺改进的措施。The mechanical properties and surface quality of 15MnNbR steel produced by normal rolling, normalizing and testing, always meet the technical requirement, but many steel plates are disqualification by non-destructive test. Causes are investigated by optical microscopy and electron probe. Improving methods are put forword.

关 键 词：15MnNbR钢 超声波 探伤 改进措施 

分 类 号：TG115.28[金属学及工艺—物理冶金]