微观结构
材料科学
腐蚀
合金
高熵合金
点蚀
冶金
氯化物
相(物质)
摩尔比
化学
生物化学
催化作用
有机化学
作者
Weiwei Chang,Xiyang Wang,Hongchang Qian,Xudong Chen,Yuntian Lou,Min Zhou,Dawei Guo,Chi Tat Kwok,Lap Mou Tam,Dawei Zhang
标识
DOI:10.1016/j.corsci.2023.111808
摘要
The microstructure, hardness and corrosion behavior of CoCrFeNiSnx (x = 0, 0.1, 0.5 and 1.0) HEAs were investigated in this work. The increase of the Sn addition resulted in the improvement of hardness (reached 424.9 HV) which attributed to the increase of the Ni3Sn2 phase with higher hardness. Adding Sn with molar ratio of 0.1 promoted the pitting initiation due to the potential difference between the two phases. CoCrFeNiSn0.5 and CoCrFeNiSn1.0 exhibited enhanced corrosion resistance compared to the alloy without Sn, which ascribed to the increase in cathode area (Ni3Sn2 phase) leading to a decrease in pitting sensitivity of FCC phase.
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