C和V对奥氏体不锈钢焊缝的强化  

Strengthening Effect of C and V on Austenite Stainless Steel Welds

作　　者：张田宏[1] 方洪渊[1] 杨建国[1] 杜义[2] 彭冀湘[2] 

机构地区：[1]哈尔滨工业大学,黑龙江哈尔滨150001 [2]洛阳船舶材料研究所,河南洛阳471039

出　　处：《材料开发与应用》2005年第4期9-11,14,共4页Development and Application of Materials

摘　　要：研究了元素C、V对高强度奥氏体不锈钢焊缝金属的强化作用。结果显示,提高C含量,具有明显的固溶强化效果,但C含量的增加导致大量碳化物在晶界上析出;提高V含量使细小弥散的碳化钒在晶内析出,产生明显的沉淀强化效果。在强化效果基本相同时,后者的韧性高于前者。The strengthening effects of C and V on high strength austenite stainless steel welds were studied. The results manifested that C had solution strengthening effect and V had precipitation strengthening effect. V strengthened welds exhibited higher toughness than that strengthened with C in the same strengthening effect. Increasing C content in the stainless steel led to the carbide particles forming in austenite grain boundaries while increasing V content may result in small and disperse vanadium carbide precipitates distributing in austenite grain.

关 键 词：奥氏体焊条 熔敷金属 固溶强化 沉淀强化 

分 类 号：TG142.25[一般工业技术—材料科学与工程]