环境条件对熔敷金属中扩散氢含量的影响  

Influence of Environmental Conditions on Hydrogen Diffusion in Deposited Metal

作　　者：余巍[1] 张京海[1] 易传宝[1] 魏占江 

机构地区：[1]洛阳船舶材料研究所

出　　处：《材料开发与应用》1999年第1期8-11,共4页Development and Application of Materials

摘　　要：通过在温湿可调焊接实验室中进行不同环境条件下的测氢焊接试验，研究了环境条件对熔敷金属中扩散氢含量的影响。结果表明，焊接环境的绝对湿度对超低氢焊条熔敷金属中扩散氢含量有较大影响，绝对湿度越大，焊缝金属中扩散氢含量越高。By measuring the content of hydrogen diffused into the deposited metal under different temperature and humidity in the first Environmental Welding Laboratory of our institute, the influence of the environmental conditions on the hydrogen diffusion was investigated. The results show that the absolute humidity of the welding environment has great influence on the hydrogen diffusion, and that the greater the absolute humidity, the higher the content of hydrogen diffused in deposited metal.

关 键 词：扩散氢 湿度 氢致裂纹 焊接工艺 熔敷金属 

分 类 号：TG441.7[金属学及工艺—焊接]