The study of sensitivity to SCC of X70 steel showed that the characteristic of IGSCC was showed by fracture morphology of X70 steel in Na2CO3/NaHCO3 solutions.

• X70钢应力腐蚀敏感性研究的结果表明:外加一定的载荷,Na2CO3/NaHCO3溶液成为应力腐蚀敏感性介质,改变HCO3-的浓度,对腐蚀敏感性没有明显的影响。