Synergistic effect of Ti and Al on L12-phase design in CoCrFeNi-based high entropy alloys

Da Chen; Feng He; Bin Han; Qingfeng Wu; Yang Tong; Yilu Zhao; Zhijun Wang; Jincheng Wang; Ji jung Kai

doi:10.1016/j.intermet.2019.106476

Synergistic effect of Ti and Al on L1₂-phase design in CoCrFeNi-based high entropy alloys

Da Chen
, Feng He
, Bin Han
, Qingfeng Wu
, Yang Tong
, Yilu Zhao
, Zhijun Wang
, Jincheng Wang
, Ji jung Kai

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

120 Scopus citations

Abstract

L1₂-phase-strengthened high entropy alloys (HEAs) have shown promising mechanical properties for both high-temperature and cryogenic applications. However, designing L1₂ phase still strongly relies on the trial-and-error experiments. The current study reported that the L1₂ phase in face centered cubic (FCC) HEAs is greatly influenced by a sygnergistic effect of Ti and Al. The experimental results showed that a Ti/Al ratio ranging from 0.7 to 2 was required by L1₂ phase in CoCrFeNi-based HEAs. The present findings provided an efficient guideline for designing L1₂ phase in the complex concentrated alloys.

Original language	English
Article number	106476
Journal	Intermetallics
Volume	110
DOIs	https://doi.org/10.1016/j.intermet.2019.106476
State	Published - Jul 2019

Keywords

Alloy design
FCC matrix
High entropy alloys
L1 phase
Microstructure characterization
Ti/Al ratio

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10.1016/j.intermet.2019.106476

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@article{03c756b648054b5dba91a1d20f19989e,

title = "Synergistic effect of Ti and Al on L12-phase design in CoCrFeNi-based high entropy alloys",

abstract = "L12-phase-strengthened high entropy alloys (HEAs) have shown promising mechanical properties for both high-temperature and cryogenic applications. However, designing L12 phase still strongly relies on the trial-and-error experiments. The current study reported that the L12 phase in face centered cubic (FCC) HEAs is greatly influenced by a sygnergistic effect of Ti and Al. The experimental results showed that a Ti/Al ratio ranging from 0.7 to 2 was required by L12 phase in CoCrFeNi-based HEAs. The present findings provided an efficient guideline for designing L12 phase in the complex concentrated alloys.",

keywords = "Alloy design, FCC matrix, High entropy alloys, L1 phase, Microstructure characterization, Ti/Al ratio",

author = "Da Chen and Feng He and Bin Han and Qingfeng Wu and Yang Tong and Yilu Zhao and Zhijun Wang and Jincheng Wang and Kai, \{Ji jung\}",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = jul,

doi = "10.1016/j.intermet.2019.106476",

language = "英语",

volume = "110",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Synergistic effect of Ti and Al on L12-phase design in CoCrFeNi-based high entropy alloys

AU - Chen, Da

AU - He, Feng

AU - Han, Bin

AU - Wu, Qingfeng

AU - Tong, Yang

AU - Zhao, Yilu

AU - Wang, Zhijun

AU - Wang, Jincheng

AU - Kai, Ji jung

PY - 2019/7

Y1 - 2019/7

N2 - L12-phase-strengthened high entropy alloys (HEAs) have shown promising mechanical properties for both high-temperature and cryogenic applications. However, designing L12 phase still strongly relies on the trial-and-error experiments. The current study reported that the L12 phase in face centered cubic (FCC) HEAs is greatly influenced by a sygnergistic effect of Ti and Al. The experimental results showed that a Ti/Al ratio ranging from 0.7 to 2 was required by L12 phase in CoCrFeNi-based HEAs. The present findings provided an efficient guideline for designing L12 phase in the complex concentrated alloys.

AB - L12-phase-strengthened high entropy alloys (HEAs) have shown promising mechanical properties for both high-temperature and cryogenic applications. However, designing L12 phase still strongly relies on the trial-and-error experiments. The current study reported that the L12 phase in face centered cubic (FCC) HEAs is greatly influenced by a sygnergistic effect of Ti and Al. The experimental results showed that a Ti/Al ratio ranging from 0.7 to 2 was required by L12 phase in CoCrFeNi-based HEAs. The present findings provided an efficient guideline for designing L12 phase in the complex concentrated alloys.

KW - Alloy design

KW - FCC matrix

KW - High entropy alloys

KW - L1 phase

KW - Microstructure characterization

KW - Ti/Al ratio

UR - https://www.scopus.com/pages/publications/85064916881

U2 - 10.1016/j.intermet.2019.106476

DO - 10.1016/j.intermet.2019.106476

M3 - 文章

AN - SCOPUS:85064916881

SN - 0966-9795

VL - 110

JO - Intermetallics

JF - Intermetallics

M1 - 106476

ER -

Synergistic effect of Ti and Al on L1₂-phase design in CoCrFeNi-based high entropy alloys

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