1. Enhanced wear-resistance of TiZrHfNbx refractory high entropy alloys meditated by subsurface instabilities.
- Author
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Hua, Ke, Wan, Qiong, Zhou, Ziqi, Zhou, Qing, Li, Xiaolin, Wu, Hongxing, and Wang, Haifeng
- Subjects
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ENTROPY , *ALLOYS , *MATERIAL plasticity , *GRAIN refinement , *REFRACTORY materials , *SLIDING wear - Abstract
• Enhanced wear-resistance were achieved by reducing the content of Nb in TiZrHfNb. • The wear loss is related to the subsurface instabilities during friction. • Deformation-induced grain refinement and phase transformation enhance wear-resistance. A sliding enhanced wear-resistance can be significantly achieved by reducing the content of Nb element in TiZrHfNb refractory high entropy alloys (RHEAs). The wear loss reduced by half from TiZrHfNb to TiZrHfNb 0.4. The wear loss is directly related to the subsurface instabilities induced by plastic deformation during friction. The origins can be attributed to two factors: i) plastic deformation induced grain refinement; ii) deformation-induced BCC to HCP phase transformation. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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