Optimization of Al/V Ratio in FeMnNiCr High-Entropy Alloys for Enhanced Hardness and Wear Resistance via a High-Throughput Strategy
发布时间：2025-10-03
点击次数：
DOI码：10.1002/adem.202501462
发表刊物：Advanced Engineering Materials
摘要：High-entropy alloys (HEAs) have attracted significant attention as promising candidates for a wide range of applications, particularly their excellent wear-resistant properties. In this study, a diffusion couple with a nominal composition of Fe45(Al/V)20Mn18Ni12Cr5 is fabricated through electron beam welding encapsulation combined with hot isostatic pressing. The effect of the Al–V concentration gradient on the material's hardness is investigated, and a correlation between composition and hardness is established. The composition points exhibiting superior hardness are selected for alloy synthesis, which is followed by heat treatments under various conditions. The combined addition of Al and V in a specific range is found to improve the wear resistance of HEAs. However, excessive V content, although contributing to enhanced hardness and wear resistance, also elevated the risk of embrittlement. The Fe47.77V16.80Mn16.58Ni9.77Cr5.63Al3.47 HEA, subjected to solution treatment at 1 000 °C for 10 h and followed by aging at 700 °C for 12 h, demonstrated the highest wear resistance, with a wear rate of 4.892 × 10−6 mm−3 N m−1, ≈75% lower than the commercial high-speed steel. Morphological analysis identified abrasive wear and delamination wear as the dominant wear mechanisms. The present work provides an efficient method for designing HEAs with optimized hardness and wear resistance.
合写作者：Qun Zou, Bo Li
第一作者：Qingxiao Wu
通讯作者：Le Fu*, Gemei Cai*
是否译文：否
发表时间：2025-10-03
发布期刊链接：https://advanced.onlinelibrary.wiley.com/doi/10.1002/adem.202501462