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在脱氧蒸馏水和脱氧0.6N(3.5%)NaCl溶液中,检测了4130(UNS G 41300)。4340(NUS GG 43400)钢应力腐蚀裂纹扩展行为与温度的关系,以确定在水介质中电化学反应对裂纹扩展的控制能力。尤为令人关注的是文中提及了与K无关(第二阶段)的裂纹增长速率。另外还单独测量了钢基体表面氧化物溶液电化学反应与温度的关系。结果表明,第二阶段裂纹扩展为热致活化,表观活化能为34±3KJ/mol(准确性达95%)。可以发现,裂纹在蒸馏水中的扩展
In deoxygenated distilled water and deoxygenated 0.6N (3.5%) NaCl solution, 4130 (UNS G 41300) was tested. 4340 (NUS GG 43400) Relationship between stress corrosion cracking propagation and temperature in steel to determine the ability of the electrochemical reaction to control the crack propagation in aqueous media. Of particular concern is the article mentioned in the article has nothing to do with K (second stage) crack growth rate. In addition, the relationship between the electrochemical reaction of the oxide solution on the surface of the steel substrate and the temperature was also measured separately. The results show that the second stage of crack propagation is thermal activation, the apparent activation energy is 34 ± 3KJ / mol (accuracy of 95%). It can be found that cracks propagate in distilled water