30CrSiMoVA钢摩擦盘连接片断裂分析  

Failure analysis of 30CrSiMoVA steel friction disk connection plate

作　　者：朱勇宾[1] 郭领军[1] 周元彪[1] 张卫本[1] 

机构地区：[1]西北工业大学凝固技术国家重点实验室,陕西西安710072

出　　处：《金属热处理》2013年第4期112-114,共3页Heat Treatment of Metals

基　　金：国家自然科学基金(51221001)

摘　　要：对断裂的30CrSiMoVA钢飞机摩擦盘连接片进行化学成分、硬度、金相、扫描电镜和能谱分析。结果显示,连接片合金成分偏离30CrSiMoV钢标准,V含量较低,S含量过高,合金力学性能降低;连接片断裂形式为硫化物在晶界处偏聚引起的晶间断裂。The cracked 30CrSiMoVA connecting plate of planes friction disk was analyzed by chemical composition, hardness, metallographic, SEM and EDS analysis. The results show that alloy composition of the connecting plate deviates from 30CrSiMoV steel standard value, the reduce of mechanical properties of 30CrSiMoVA steel connecting plate due to the lower vanadium content and much higher sulfur content; the fracture morphology of connecting plate is inter-granular fracture for the segregation of sulfide in the grain boundary.

关 键 词：30CrSiMoVA钢 连接片 断裂分析 晶间断裂 

分 类 号：V252.1[一般工业技术—材料科学与工程]