摘要
研究了放电等离子烧结(FeCoNiCr)_(100-x)Mn_(x)(x=4,8,12,20)高熵合金的组织结构及在NaCl和NaOH溶液中的耐腐蚀性能。结果表明,(FeCoNiCr)_(100-x)Mn_(x)合金主要由FCC单相组织和少量BCC相组成。(FeCoNiCr)_(88)Mn_(12)合金在3.5wt%NaCl溶液中具有最好的耐腐蚀性能。Mn的添加使合金在1 mol NaOH溶液中耐腐蚀性增强。退火对合金在1 mol NaOH溶液中抗腐蚀性能影响不大。(FeCoNiCr)_(100-x)Mn_(x)合金在3.5wt%NaCl溶液和1 mol NaOH溶液中的抗腐蚀性能均优于304S不锈钢。
Microstructure and corrosion resistance in NaCl and NaOH solutions of the(FeCoNiCr)_(100-x)Mn_(x)(x=4,8,12,20) high entropy alloys prepared by spark plasma sintering were studied. The results show that(FeCoNiCr)_(100-x)Mn_(x)alloys are mainly composed of FCC single phase structure and a small amount of BCC phase.(FeCoNiCr)_(88)Mn_(12)alloy has the best corrosion resistance in 3.5 wt%NaCl solution. The addition of Mn enhances the corrosion resistance of the alloy in 1 mol NaOH solution. Annealing has little effect on corrosion resistance of the alloy in 1 mol NaOH solution. The corrosion resistance of the(FeCoNiCr)_(100-x)Mn_(x)alloys in 3.5 wt%NaCl solution and 1 mol NaOH solution is better than that of the 304 S stainless steel.
作者
赵堃
蒋鹏
王虎虎
王博
王沛锦
杨兴中
Zhao Kun;Jiang Peng;Wang Huhu;Wang Bo;Wang Peijin;Yang Xingzhong(School of Materials Science and Engineering,Shaanxi University of Technology,Hanzhong Shaanxi 723000,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2022年第5期40-46,共7页
Heat Treatment of Metals
基金
陕西理工大学人才项目(SLGQD1801)。
