0Cr18Ni10Ti不锈钢锻件横向冲击性能不合格分析  

Analysis of Unqualified Transverse Impact Property of 0Cr18Ni10Ti Stainless Steel Forging

作　　者：李晓明[1] 

机构地区：[1]天津重型装备工程研究有限公司,天津300457

出　　处：《大型铸锻件》2016年第4期15-17,共3页Heavy Casting and Forging

摘　　要：针对6件横向冲击韧性不合格的冲击试样,采用断口观察、金相分析、SEM微观形貌分析及化学成分分析等手段对其进行分析。结果表明:σ相的存在是造成材料冲击韧性降低的主要原因,采用高于σ相的稳定化温度短时间加热可消除σ相。By means of fracture surface observation, metallographic analysis, SEM miero-morphology analysis, chemical composition analysis, six impact test specimens that the transverse impact property don＇t meet the requirements have been analyzed. The results show that the existence of sigma phase is the main reason to decrease the impact toughness. By adopting the short-time heating with the temperature higher than the stabilization temperature of sigma phase, the sigma phase can be relieved.

关 键 词：0CR18NI10TI 横向冲击韧性 Σ相 稳定化温度 

分 类 号：TG115[金属学及工艺—物理冶金]