📄 chemistry
Influence of non-ferromagnetic Al/Cr ratio on microstructure, magnetic and corrosion properties of medium-entropy alloys
This study demonstrates that systematically varying the Al/Cr ratio in Fe₂Co₄Co₄AlₓCrᵧ medium-entropy alloys governs their phase evolution from FCC+BCC to BCC+B2 structures, thereby optimizing hardness, soft magnetic performance, and corrosion resistance, with the Fe₂Co₄Al₁.₈Cr₁.₂ composition emerging as a promising candidate for soft magnetic applications due to its superior magnetic properties and Fe₂Co₄Al₁.₆Cr₁.₄ showing the best overall corrosion resistance.
*Correction for strict one-sentence constraint and clarity:*
This study reveals that adjusting the Al/Cr ratio in Fe₂Co₄AlₓCrᵧ medium-entropy alloys drives microstructural evolution from FCC+BCC to BCC+B2 phases, significantly enhancing hardness, soft magnetic properties, and corrosion resistance, with the Fe₂Co₄Al₁.₈Cr₁.₂ alloy identified as a promising candidate for soft magnetic applications due to its optimal balance of high saturation magnetization, low coercivity, and good corrosion performance.
youzong Cao, Qi Wang, Huijie Song, Yanmin Cao, Xue Han, Jinming Zhu, Tonghan Yang2026-10-14