丙炔醇对奥氏体不锈钢应力腐蚀的缓蚀作用

Inhibitive Action of Propargyl Alcohol for SCC of Austenitic Stainless Steel

丙炔醇对奥氏体不锈钢应力腐蚀的缓蚀作用牛林＊林海潮曹楚南宋光铃（中国科学院金属腐蚀与防护研究所，金属腐蚀与防护国家重点实验室沈阳１１００１５）关键词丙炔醇，奥氏体不锈钢，应力腐蚀，缓蚀作用１９９７－０５－１３收稿，１９９７－０９－０２修回国家自然科学...

The SCC susceptibility of 1Cr18Ni9Ti austenitic stainless steel in 05 mol/L HCl+05 mol/L NaCl solution and the inhibiting effects of propargyl alcohol(PA) on SCC and general corrosion were investigated by slow strain rate tests(SSRT), polarization curves and electrochemical impedance spectroscopy(EIS). The results indicated that the inhibitive action of PA can be attributed to its adsorption and inhibiting effects on the anodic reaction of metal dissolution due to the effect of blocking the active sites on metal surface.