【摘要】 用甘油法分别测定了ＣＭ－９Ｃｂ、Ｒ３４７和国内新研制的Ｔ９１专用焊条熔敷金属中的扩散氢含量．通过阴极电解渗氢和定载延迟开裂试验，研究了选用不同焊条焊接时，Ｔ９１与钢１０２异种钢接头的氢致裂纹倾向，确定了临界启裂应力．更多还原

【Abstract】 The diffusible hydrogen content in the deposited metal using CM-9Cb, R347 and newly-developed T91 electrode was measured respectively through glycerine hydrogen test, and the tendency for hydrogen-induced cracking of the T91 and steel 102 joint welded with different electrodes was investigated by means of electrolytic hydrogen charging and constant-load delayed cracking test, and the critical stress was determined.更多还原