共晶高熵合金AlCoCrFeNi2.1 在H2SO4 溶液中的腐蚀行为

共晶高熵合金AlCoCrFeNi_2.1 在H₂SO₄ 溶液中的腐蚀行为

胡文滨, 张晓雯, 宋龙飞, 廖伯凯, 万闪, 康磊, 郭兴蓬

Corrosion Behavior of AlCoCrFeNi_2.1 Eutectic High-Entropy Alloy in Sulfuric Acid Solution

HU Wenbin, ZHANG Xiaowen, SONG Longfei, LIAO Bokai, WAN Shan, KANG Lei, GUO Xingpeng

图9 AlCoCrFeNi_2.1EHEA在0.05 mol/L H₂SO₄溶液和0.05 mol/L H₂SO₄ + 0.02 mol/L NaCl溶液中的局部腐蚀机理示意图

Fig.9 Schematics of localized corrosion mechanism of AlCoCrFeNi_2.1EHEA in 0.05 mol/L H₂SO₄ solution (a1-a3) and 0.05 mol/L H₂SO₄ + 0.02 mol/L NaCl solution (b1-b3)
(a1, b1) before corrosion
(a2, b2) the form of metastable pitting
(a3, b3) selective corrosion (a3) and the form of stable pitting (b3)