TY - JOUR
AU1 - Xia, Linfei
AU2 - Wu, Qingfeng
AU3 - Zhou, Kexuan
AU4 - Han, Bin
AU5 - He, Feng
AU6 - Wang, Zhijun
AB - According to the precipitation and recrystallization behavior, the precipitation and recrystallization can be concurrently tuned toward the excellent mechanical property. In this study, a synergistically strengthened Co37Cr20Ni37Ti3Al3\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$${\mathrm{Co}}_{37}{\mathrm{Cr}}_{20}{\mathrm{Ni}}_{37}{\mathrm{Ti}}_{3}{\mathrm{Al}}_{3}$$\end{document} high-entropy alloy was developed through concurrent recrystallization and precipitation (CRP) approach. After the treatment, the high-density γ' precipitates were introduced in the matrix, while the fully-recrystallized ultrafine grains and annealing twins were obtained from the recrystallization. Compared with conventional treatment, the CRP-HEA exhibits a superior combination of ~ 1.62GPa tensile strength and ~ 28% elongation, which is attributed to the synergistic strengthening of precipitation and grain boundary. In addition, the deformation mechanisms were characterized by TEM. The cutting-through mechanism dominates the deformation behaviors. Moreover, interesting stacking faults in different slip planes prevail during plastic deformation. The concurrent recrystallization and precipitation for ultra-fine grain structure with nano-precipitates would provide an effective strategy to achieve outstanding combination of strength and ductility.Graphical Abstract[graphic not available: see fulltext]
TI - Concurrent Recrystallization and Precipitation for Combination of Superior Precipitation and Grain Boundary Hardening in Co37Cr20Ni37Ti3Al3 High-Entropy Alloy
JF - Metals and Materials International
DO - 10.1007/s12540-022-01178-9
DA - 2022-12-01
UR - https://www.deepdyve.com/lp/springer-journals/concurrent-recrystallization-and-precipitation-for-combination-of-GZV5pQDPs9
SP - 2863
EP - 2873
VL - 28
IS - 12
DP - DeepDyve
ER -