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四种高强度油并管钢动态充氢时,进入试样的可扩散氢含量c0和充氢电流i成正比;而氢致断裂门槛应力σc与名义屈服强度σt之比和Inc0成正比,即σc/σt=A-BInc0.测量了四种钢在H2S中浸泡时进入试样的c0,求出相应的ic,用ic充氢时测出的门槛应力σc(H)/σt和H2S中应力腐蚀门槛应力σc(H2S)/σt相一致这表明,可用特定电流下的动态充氢来代替H2S应力腐蚀.
Four kinds of high-strength oil and tube dynamic hydrogen filling, into the sample diffusible hydrogen content c0 and charging current i is proportional to; and hydrogen induced fracture threshold stress σc and nominal yield strength σt ratio and Inc0 is proportional to σc / σt = A-BInc0. The c0 of the four steels entering into the sample during immersion in H2S was measured and the corresponding ic was calculated. The threshold stress σc (H) / σt and the stress corrosion threshold stress σc (H2S) σt. This shows that dynamic hydrogen charging at a specific current can be used instead of H2S stress corrosion.