超低碳贝氏体焊缝金属组织性能的研究进展  

Research Progress on Microstructure and Properties of ULCB Weld Metal

作　　者：刘昊[1] 薛小怀[1] 李建国[1] 

机构地区：[1]上海交通大学材料科学与工程学院,上海200240

出　　处：《热加工工艺》2012年第13期138-140,共3页Hot Working Technology

摘　　要：介绍了超低碳贝氏体(ULCB)焊缝金属产生的背景以及影响ULCB焊缝金属性能的主要因素。虽然ULCB焊缝金属有着优异的性能,但是焊缝化学成分、焊接方法的选取和保护气氛的不同对焊缝性能有着很大的影响。要使ULCB焊缝金属优异的性能最大化地发挥出来,必须要控制焊缝中夹杂物的尺寸和消除柱状晶来进一步改善焊缝的韧性。The emerged background of ultra-low carbon bainitic （ULCB） weld metal and the main factors on the properties of ULCB weld metal were introduced. ULCB weld metal has good performance, but chemical composition, and the selection of welding method and differences of protecting atmosphere have great effects on the properties of ULCB weld metal. The good performance of ULCB weld metal is maximized, Then the size of inclusions should be controlled and the columnar crystal should be eliminated in order to improve the toughness of weld metal.

关 键 词：ULCB焊缝金属 性能 化学成分 焊接方法 

分 类 号：TG422[金属学及工艺—焊接]