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用电化学测试和俄歇电子能谱分析研究了离子注入不同剂量的Mo、Ti对304L奥氏体不锈钢在H_2SO_4、NaCl水溶液中的腐蚀行为,结果表明:注入Mo、Ti可使不锈钢的耐水溶液腐蚀性能提高,并改善材料的钝性和耐小孔腐蚀能力;在腐蚀过程中,注入元素在膜中富集,膜中Cr/Fe比值提高,从而达到耐蚀性能改善之目的;在适当的注入剂量下,可获得最佳的耐蚀改性效果。
The corrosion behavior of 304L austenitic stainless steel in H_2SO_4 and NaCl aqueous solutions by ion implantation of different dosages of Mo and Ti was investigated by electrochemical and Auger electron spectroscopy. The results show that Mo and Ti can improve the corrosion resistance of stainless steel Improve the corrosion resistance and improve the material’s bluntness and resistance to pinhole corrosion; during the corrosion process, the injected elements are enriched in the membrane, the Cr / Fe ratio in the membrane is increased, so as to achieve the purpose of improving the corrosion resistance; Injecting doses, the best corrosion modification can be obtained.