阴极保护电位对E550钢氢脆敏感性的影响
Effect of Cathodic Protection Potentials on Susceptibility to Hydrogen Embrittlement of E550 Steel
采用慢应变速率拉伸实验方法(SSRT)结合断口扫描电镜(SEM)观察，研究了阴极保护电位对E550钢在海水中氢脆敏感性的影响。结果表明：随着阴极保护电位负移，E550钢在海水中的氢脆敏感性增加，阴极保护电位为-0.95V(vsSCE)时，拉伸试样出现脆性解理断裂特征，电位为-1.05V时，E550钢断口呈明显脆性断裂特征。
he susceptibility to hydrogen embrittlement (HE) of E550 steel was investigated in seawater by means of slow strain rate test and SEM observation of fractured surfaces. The results showed that the susceptibility to hydrogen embrittlement increased with the decrease of cathodic protection potential. The fracture surface of the steel after slow strain rate test exhibited cleavage brittle fracture at -0.95 V (vs SCE). In general, E550 steel was subject to HE in sea water at -1.05 V.
许立坤、赵程、陈祥曦、张海兵
材料科学金属学、热处理钢铁冶炼
阴极保护氢脆慢应变速率拉伸E550钢
许立坤,赵程,陈祥曦,张海兵.阴极保护电位对E550钢氢脆敏感性的影响[EB/OL].(2023-03-31)[2025-04-24].https://chinaxiv.org/abs/202303.10495.点此复制
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