Al/Ti/Steel覆板爆炸焊接界面的显微组织特征  

MICROSTRUCTURAL FEATURES OF JOINT ZONES IN AN EXPLOSIVE WELDED Al/Ti/STEEL PLATE SYSTEM

作　　者：潘春旭[1] 施雨湘[1] 孙国正[1] W.Scholz A.Y.Trykov 

机构地区：[1]武汉交通科技大学,武汉430063 [2]NewZealandWeldingCentre,NewZealand

出　　处：《金属学报》1997年第11期1199-1206,共8页Acta Metallurgica Sinica

基　　金：交通部科技司和教育司资助

摘　　要：利用电子显微技术研究了Al／Ti／Steel覆板爆炸焊接中两个异种焊接界面的显微组织变化特征透射电镜直接取样观察到在界面处有组织过渡区，并且过渡区之间及过渡区与母材之间存在明显的边界Al／Ti界面过渡区为Al＋Ti混合组织；Ti／Steel界面由FeTi金属间化合物区和非晶区组成过渡区的形态和宽度与焊接过程中的合金元素扩散及冷却速度有关。The microstructural variations of the bonded zones in an explosive welded Al/Ti/Steel plate system were studied by using electron microscopy techniques.The direct transmission electron microscope(TEM) observation found the transition zones in the bonded zone, and there are obvious interfaces between the transition zones and between transition zone and base metal.In the Al/Ti bonded zone, the transition zone is an Al+Ti mixture.In the Ti/Steel bonded zone,the transition zone is composed of the FeTi intermetallic layer and an amorphous layer.The morphology and size of the transition zones depend upon the diffussion of alloy elements and cooling rate during explosive welding.

关 键 词：爆炸焊接 界面结构 钛 铝 钢 焊接性 

分 类 号：TG406[金属学及工艺—焊接] TG456.6