V对2205双相不锈钢钢筋组织和耐蚀性能影响研究
Effect of Vanadium on Microstructure and Corrosion Resistance of 2205 Duplex Stainless Steel
DOI: 10.12677/MEng.2018.53017, PDF,    国家科技经费支持
作者: 孙 秀, 胡建文：河北科技大学材料学院，河北 石家庄；杨忠民, 陈 颖：钢铁研究总院工程用钢研究所，北京；李晓滨, 吕尚霖：中冶建筑研究总院有限公司，北京
关键词: 微合金元素V2205；双相不锈钢；临界点蚀电位；Microalloying Element V； 2205 Duplex Stainless Steel； Critical Pitting Point
摘要: 本文对比了V微合金化2205双相不锈钢钢筋和不含V的2205双相不锈钢钢筋经过不同固溶处理的组织和电化学腐蚀性能，结果表明：含V的2205不锈钢钢筋在950℃固溶处理时组织中的脆性相比不含V的2205不锈钢钢筋组织中的脆性相显著减少，在1000℃~1050℃温度区间内，含V的2205钢筋和不含V的2205钢筋的微观组织中都没有σ相等脆性相析出，添加V有抑制脆性相析出的作用。含V的2205不锈钢钢筋的临界点蚀电位高于不含V的2205不锈钢钢筋的临界点蚀电位，添加V提高了2205双相不锈钢的耐腐蚀性能。
Abstract: The microstructure and electrochemical corrosion resistance of V microalloyed 2205 duplex stainless steels bar and 2205 duplex stainless steels bar without V were investigated for solution treatment and holding time respectively. The results show that the 2205 stainless steel rein-forcement containing V was solution treated at 950˚C. The brittleness of the structure was signifi-cantly reduced compared with that of 2205 stainless steel without V. In the temperature range of 1000˚C~1050˚C, there is no σ brittle phase in the two kinds of 2205 stainless steel bars. The addi-tion of microalloying V inhibited the brittle phase precipitation. The critical pitting point of 2205 stainless steel with V is higher than the critical pitting point of 2205 stainless steel without V, which improves the corrosion resistance of 2205 duplex stainless steel.
文章引用：孙秀, 杨忠民, 陈颖, 胡建文, 李晓滨, 吕尚霖. V对2205双相不锈钢钢筋组织和耐蚀性能影响研究[J]. 冶金工程, 2018, 5(3): 122-130. https://doi.org/10.12677/MEng.2018.53017

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