A TiC reinforced Co-free Fe50Mn25Ni10Cr15 medium-entropy alloy with multiple strengthening mechanisms

Zhaohuan Song,Shengying Sun, Haonan Du, Ruitong Han,Xiliang Zhang,Qian Zhou,Zheng Lv,Ran Wei,Hongji Liu

Materials Letters（2023）

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摘要

•A novel in-situ formed TiC reinforced Fe50Mn25Ni10Cr15 MEA was prepared.•Compared to TC00, the yield strength of TC05 increased by ∼80%.•A synergistic effect of several strengthening mechanisms worked during the tensile test.•The excellent ductility of the studied MEA is due to dislocation slip and twinning.

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关键词

Medium -entropy alloy,Yield strength,Fine grain strengthening,Orowan strengthening,HDI strengthening

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