微量元素对焊缝扩散氢含量的影响  

Influence of microelement on diffusible hydrogen in weld bead

作　　者：陈邦固[1] 丁萍[1] 张文钺[1] 许玉环[1] 

机构地区：[1]天津大学

出　　处：《焊接学报》1995年第2期112-117,共6页Transactions of The China Welding Institution

基　　金：天津自然科学基金

摘　　要：本文首次采用熔池添加合金过渡法（简称熔池法）系统地研究了微量元素钇（Ｙ）和碲（Ｔｅ）对焊缝扩散氢含量的影响。研究表明：与通常的药皮过渡法比较，熔池法降氢效果显著，可减少烧损昂贵的微量元素、改善焊接工艺性能。因此，对于微量元素在焊接材料中的应用与提高焊接工程质量都具有重要的意义。本文还探讨了微量元素钇和碲的降氢机理。In the thesis, the influence of microelements yttrium(Y)and tellurium(Te)on the diffusible hydrogen in weld bead has been firstly investigated in systemic way bymeans of alloying addition in the weld pool(AAWP).The results indicate that AAWPmay no tably decrease the diffusible hydrogen,decrease the burn of preciousmicroelements and improve the technological properties compared with the commonalloying addition in the coating of coated eletrode. Thus the microelements willplay an important role in further develo ping the welding materials and improving thequality of welding engineering.Finally the mechanism of microelements Y and Tereducing hydrogen is analysed.

关 键 词：焊接 微量元素 扩散氢 含量 熔池法 

分 类 号：TG401[金属学及工艺—焊接]