外加电位对X80管线钢在轮南土壤模拟溶液中应力腐蚀行为的影响
朱丽霞1,2(
), 贾海东3, 罗金恒1, 李丽锋1, 金剑3, 武刚1, 胥聪敏4
), 贾海东3, 罗金恒1, 李丽锋1, 金剑3, 武刚1, 胥聪敏4
Effect of Applied Potential on Stress Corrosion Behavior of X80 Pipeline Steel and Its Weld Joint in a Simulated Liquor of Soil at Lunnan Area of Xinjiang
ZHU Lixia1,2(), JIA Haidong3, LUO Jinheng1, LI Lifeng1, JIN Jian3, WU Gang1, XU Congmin4
), JIA Haidong3, LUO Jinheng1, LI Lifeng1, JIN Jian3, WU Gang1, XU Congmin4
图4. X80管线钢母材及焊缝在空气中和不同外加电位下的断口SEM形貌
Fig.4. Microfracture surface morphologies of X80 steel at different potential: (a1) base metal in air; (a2) weld joint in air; (b1) base metal, -500 mV; (b2) weld joint, -500 mV; (c1) base metal, -850 mV; (c2) weld joint, -850 mV; (d1) base metal, -1000 mV; (d2) weld joint, -1000 mV; (e1) base metal, -1500 mV; (e2) weld joint, -1500 mV
