Mn/Si值对高强钢埋弧焊熔敷金属韧性的影响  

Influence of Mn/Si on Microstructure and Toughness of High Strength Steel SAW Deposited Metals

作　　者：孔红雨[1] 

机构地区：[1]洛阳船舶材料研究所,河南洛阳471039

出　　处：《材料开发与应用》2007年第6期1-4,共4页Development and Application of Materials

摘　　要：通过对不同Mn／Si值熔敷金属的低温冲击试验、金相分析和TEM分析，研究了Mn／Si值对组织、夹杂物形态和低温韧性的影响。结果表明，随着Mn／Si值的变化，高强钢埋弧焊熔敷金属低温韧性也发生变化，当Mn／Si值处于4～8之间时，熔敷金属-50℃冲击值达到lOOJ，而Mn／Si值低于或高于此区间，则低温韧性均下降。The low temperature toughness test, microstructure analysis, TEM analysis were conducted in high strength steel SAW depcsited metals with different Mn/Si. The relations between microstructure, form of inclusion and low temperature toughness were investigated. The result indicates that with the change of Mn/Si in high strength steel SAW deposited metals, the low temperature toughness changes. When Mn/Si = 4-8, the deposited metals toughness attained 100 J at - 50℃ and when Mn/Si 〈 4 or 〉 8, the toughness declined.

关 键 词：埋弧焊 韧性 烧结焊剂 

分 类 号：TG422.3[金属学及工艺—焊接]