Ultrahigh strength triggered by BCC and B2 eutectic-phase interfaces in a novel FeCrVNiAl high-entropy alloy
Original Reports|更新时间:2026-08-19
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Ultrahigh strength triggered by BCC and B2 eutectic-phase interfaces in a novel FeCrVNiAl high-entropy alloy
Ultrahigh strength triggered by BCC and B2 eutectic-phase interfaces in a novel FeCrVNiAl high-entropy alloy
材料研究快报(英文)2024年12卷第10期 页码:745-755
作者机构:
1. a Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education) School of Materials Science and Engineering Northeastern University
2. b The State Key Lab of Rolling & Automation Northeastern University
M. Z. Wang, Y. F. Shen, N. Jia, 等. Ultrahigh strength triggered by BCC and B2 eutectic-phase interfaces in a novel FeCrVNiAl high-entropy alloy[J]. 材料研究快报(英文), 2024,12(10):745-755.
M. Z. Wang, Y. F. Shen, N. Jia, et al. Ultrahigh strength triggered by BCC and B2 eutectic-phase interfaces in a novel FeCrVNiAl high-entropy alloy[J]. Materials Research Letters, 2024, 12(10): 745-755.
M. Z. Wang, Y. F. Shen, N. Jia, 等. Ultrahigh strength triggered by BCC and B2 eutectic-phase interfaces in a novel FeCrVNiAl high-entropy alloy[J]. 材料研究快报(英文), 2024,12(10):745-755.DOI: 10.1080/21663831.2024.2383352.
M. Z. Wang, Y. F. Shen, N. Jia, et al. Ultrahigh strength triggered by BCC and B2 eutectic-phase interfaces in a novel FeCrVNiAl high-entropy alloy[J]. Materials Research Letters, 2024, 12(10): 745-755.DOI: 10.1080/21663831.2024.2383352.
Ultrahigh strength triggered by BCC and B2 eutectic-phase interfaces in a novel FeCrVNiAl high-entropy alloy
The strength−ductility tradeoff and composition homogeneity have been the obstacles to obtaining advanced structural alloys. To overcome the limitations
we develop a novel coherently eutectic high-entropy alloy
i.e. Fe
30
Cr
15
V
15
Ni
20
Al
20
. By introducing a BCC phase with a low lattice misfit (0.13%) and constructing the BCC/B2 eutectic-phase interfaces
the alloy shows high mechanical stability. The low lattice mismatch contributes to the good stability of the phase interfaces and inhibits crack initiation. Thus
the as-cast Fe
30
Cr
15
V
15
Ni
20
Al
20
alloy shows an excellent tensile yield strength of 929 MPa and a high yield compressive strength of 2423 MPa. In addition
it shows an excellent compressive strain of 22.3%.