07MnNiCrMoVDR钢焊接接头低温韧性研究  

Study on Low-temperature Toughness of 07MnNiCrMoVDR Welded Joint

作　　者：张丽红[1] 陈芙蓉[2] 解瑞军[2] 

机构地区：[1]内蒙古机电职业技术学院冶金与材料工程系,内蒙古呼和浩特010070 [2]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051

出　　处：《热加工工艺》2010年第1期27-28,32,共3页Hot Working Technology

摘　　要：以07MnNiCrMoVDR钢及其焊接接头为试验对象,通过冲击试验,分析了温度对焊接接头性能的影响以及韧脆转变温度的确定。试验结果表明,07MnNiCrMoVDR钢焊接接头的低温韧性随着温度的降低而降低;焊接接头各区的韧脆转变温度均低于最低使用温度(-40℃),满足实际工矿的使用要求。07MnNiCrMoVDR steel and welded joint were studied. The effects of temperature on low-temperature toughness and define ductile-brittle transition temperature of 07MnNiCrMoVDR steel were studied by impact test. The results show that low-temperature toughness of 07MnNiCrMoVDR welded joint decreases with the decrease of temperature. The ductile-brittle transition temperature of welded joint is less than the lowest used temperature （-40℃）. So, 07MnNiCrMoVDR steel and welded joint can meet the request of application.

关 键 词：07MNNICRMOVDR钢 低温韧性 韧脆转变温度 

分 类 号：TG407[金属学及工艺—焊接]