CAJ | 학술논문

2205双相不锈钢在介质环境比较恶劣（如海水、盐卤中）的条件下，抗腐蚀性能明显优于普通奥氏体不锈钢，但该材料在制盐行业推广应用过程中，发生过较严重的腐蚀事故。本文通过实验研究，发现在含有微量CO2和还原物的制盐卤水中，其铁素体容易被H 2S等还原物选择性溶解，继而造成较严重的腐蚀。
2205쌍상불수강재개질배경비교악렬（여해수、염서중）적조건하，항부식성능명현우우보통오씨체불수강，단해재료재제염행업추엄응용과정중，발생과교엄중적부식사고。본문통과실험연구，발현재함유미량CO2화환원물적제염서수중，기철소체용역피H 2S등환원물선택성용해，계이조성교엄중적부식。
the corrosion resistance of 2205 duplex stainless steel is better than common austenitic stainless steel in the bad medium environment <such as sea water, brine>,but this material caused serious corrosion accident in the promotion and appication in salt industry.This paper find out that ferrite is easy to be selective dissolved by H 2S and other reducing substance in the brine which contains trace amount CO2 and reducing substance and then cause serious corrosion.