钛对熔敷金属扩散氢逸出特性及组织的影响

Effect of Ti Content on H_d Escape Characteristic and Microstructure of Electrode Deposit Metal

利用酒精法测氢技术、三点弯曲法试验 ,并结合显微分析和断口分析方法探讨了钛含量对熔敷金属扩散氢逸出特性、焊缝组织以及断口形貌的影响。研究结果表明 ,随着钛含量的增加 ,熔敷金属扩散氢含量以及扩散氢逸出速率随之下降 ,焊缝组织中针状铁素体量明显增多 。

Using alcohol hydrogen test,three point bending test, microstructure observation and fracture analysis, the effect of Ti content on diffusion hydrogen H d escape characteristic, microstructure and fracture morphology of electrode deposit metal were investigated. The results show that the diffusible hydrogen content and its escape velocity of the deposited metal decreased with increasing Ti content, acicular ferrite quantity and percentage of fibrous fracture also increased as well.