An approach to improve the oxidation resistance of a Ni-28W-6Cr alloy by hindering the oxygen vacancy-mediated oxidation
作者： Zhijun Li , Xingtai Zhou , Chen Ming , Li Jiang , Xiang-Xi Ye
DOI: 10.1016/J.CORSCI.2021.109480
关键词:
摘要: Abstract In this work, an approach to improve the oxidation resistance of a Ni-based alloy was proposed by doping high valence metal element into oxides. Oxidation kinetics Ni-28W-6Cr alloys with 0−0.2 wt.% Zr at 850 °C show that can significantly decrease rate and thickness inner oxide. charged +4 prefers segregate in NiWO4 replacing Ni2+, which inhibits formation oxygen vacancies reduces diffusion pathways, improving alloy.
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