硼含量对 FeCoNiCrAl$_{\bf 0.1}$B$_{ x}$ 高熵合金组织和力学性能的作用

doi:10.12066/j.issn.1007-2861.2161

Abstract

Abstract:

The effects of boron content on the microstructure and mechanical properties of FeCoNiCrAl$_{0.1}$B$_{x }(x = 0{\sim}$0.1) high-entropy alloy were investigated in this study. The results suggested that the FeCoNiCrAl$_{0.1}$B$_{x}$ high-entropy alloy consisted of single face-centered cubic (FCC) $\gamma $ phases when $x\le 0.03$, whereas it consisted of FCC $\gamma $ phase, trace of ordered FCC phase, and boride when $x\ge 0.05$. With the addition of boron atoms in the alloy, the grain size of the alloy refined, tensile strength of the alloy increased, and elongation of the alloy decreased with an increase in the boron content. The fractographs of the FeCoNiCrAl$_{0.1}$B$_{x}$ high-entropy alloy exhibited all transgranular fracture patterns during tensile testing in vacuum.

Key words: eCoNiCrAl$_{0.1}$B$_{x}$ high-entropy alloy, boron content, mechanical properties

CLC Number:

TG135

XIE Yaxi, CHEN Yexin, MA Xingxing. Effects of boron content on microstructure and mechanical properties of FeCoNiCrAl$_{\bf 0.1}$B$_{ x }$ high-entropy alloy[J]. Journal of Shanghai University（Natural Science Edition）, 2021, 27(2): 280-288.

Figures/Tables 8

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References 23

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Effects of boron content on microstructure and mechanical properties of FeCoNiCrAl$_{\bf 0.1}$B$_{ x }$ high-entropy alloy

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