Significant enhancement of ductility in as-cast Al-Co-Cr-Fe-Ni dual-phase high-entropy alloys via trace Mo alloying without sacrificing strength

Zhigang Xu

doi:10.1016/j.intermet.2026.109399

Significant enhancement of ductility in as-cast Al-Co-Cr-Fe-Ni dual-phase high-entropy alloys via trace Mo alloying without sacrificing strength

2026-06-19

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PRE

AI

Z

Zhigang Xu

X

Xun Zhao

Y

Yu Wang *

C

Chuanbin Wang *

DOI：10.1016/j.intermet.2026.109399

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• Novel Ni35Fe20Co15Cr15Al15-xMox (x = 0, 1 and 3) dual-phase high-entropy alloys (DPHEAs) with FCC/B2 phases were fabricated by direct casting. • Appropriate Mo addition induces pronounced lattice distortion and effectively refines the FCC grain. • Disordered BCC particles in the B2 phase and ordered L12 precipitates in the FCC phase are frequently observed. • The as-cast Ni35Fe20Co15Cr15Al14Mo1 DPHEA achieves nearly twice the ductility of as-cast Ni35Fe20Co15Cr15Al15 DPHEA without sacrificing strength.

Significant enhancement of ductility in as-cast Al-Co-Cr-Fe-Ni dual-phase high-entropy alloys via trace Mo alloying without sacrificing strength

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