(華北理工大學(xué) 冶金與能源學(xué)院，唐山 063210)
摘 要: 高熵合金的多主元特征，使其在變形過程中表現(xiàn)出多種變形機(jī)制的協(xié)同作用，因而表現(xiàn)出優(yōu)異的性能。與傳統(tǒng)合金相比較，對(duì)高熵合金中多種變形機(jī)制調(diào)控的可能性更大。研究發(fā)現(xiàn)，微結(jié)構(gòu)及其演變將直接影響合金中的變形機(jī)制，通過“微結(jié)構(gòu)-變形機(jī)制-性能”這一設(shè)計(jì)思路，在高熵合金中引入多變形機(jī)制并調(diào)控其激活順序成為今后研究高熵合金的重點(diǎn)。本文對(duì)FeCoNiCrMn系高熵合金變形機(jī)制的研究現(xiàn)狀進(jìn)行了綜述，總結(jié)了高熵合金中常見的幾種變形機(jī)制，并對(duì)高熵合金中變形機(jī)制的研究進(jìn)行了展望。
關(guān)鍵字: 高熵合金；FeCoNiCrMn；變形機(jī)制；微結(jié)構(gòu)
（School of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China）
Abstract:The multi-principal component characteristics of high entropy alloy make it show the synergistic effect of variety of deformation mechanisms in the deformation process, and then exhibit excellent properties. Compared with traditional alloys, it is more possible to regulate various deformation mechanisms in high entropy alloys. It is found that the microstructure and its evolution will directly affect the deformation mechanism in the alloy. Through the design idea of "microstructure-deformation mechanisms-properties", introducing multi-deformation mechanism into high entropy alloy and regulating its activation sequence has become the focus of high entropy alloy research in the future. In this paper, FeCoNiCrMn alloy system is taken as an illustrative example for the current discussion and summary research status of several deformation mechanisms in alloys. Finally, the future research on deformation mechanism in high-entropy alloys is prospected.
Key words: high-entropy alloy; FeCoNiCrMn; deformation mechanisms; microstructure
