Effect of aging temperature on the microstructure and mechanical properties of a Fe29Co28.9Ni28.9Al7.8Ta5.4 multi-principal element alloy
发布时间：2026-05-31
点击次数：
DOI码：10.1016/j.materresbull.2026.114255
发表刊物：Materials Research Bulletin
摘要：To improve the low strength of FeCoNi-based multi-principal element alloys, this work designs a Fe29Co28.9Ni28.9Al7.8Ta5.4 alloy. Combined with Pandat thermodynamic calculations, microstructural evolution and tensile properties are investigated under different aging temperatures. The alloy consists of an FCC matrix and Ta-rich Laves phase after solution treatment. Nano L12 phases precipitate uniformly during aging. With rising temperature, L12 particles grow and their volume fraction declines. Aging at 770 °C yields superior strength-ductility performance, driven by L12 precipitation strengthening. This research offers valuable insights for optimizing composition and heat treatment of high-performance FeCoNi-based alloys.
合写作者：Qun Zou
第一作者：Bo Li
通讯作者：Le Fu*, Gemei Cai*
卷号：204
页面范围：114255
是否译文：否
发表时间：2026-05-31
收录刊物：SCI
发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0025540826002667