@article{a179f202bb6c41cda322a2b2a84dab3d,
title = "Novel Co-rich high performance twinning-induced plasticity (TWIP) and transformation-induced plasticity (TRIP) high-entropy alloys",
abstract = " The equiatomic CoCrMnNiFe high-entropy alloy (HEA) has attracted much attention owing to its exceptional mechanical properties. Here, we designed novel face-centered cubic (fcc) phase Co-rich non-equiatomic CoCrMnNiFe HEAs with tensile properties superior to the counterparts, derived from lowering stacking fault energy (SFE) via modifying constituent concentrations. The decrease of Mn, Ni, Fe meanwhile increase of Co, Cr concentrations does reduce the SFE value, based on ab initio and thermodynamics calculations. Hereinto, Co 35 Cr 20 Mn 15 Ni 15 Fe 15 and Co 35 Cr 25 Mn 15 Ni 15 Fe 10 HEAs overcame the strength-ductility trade-off, contributing to twinning-induced plasticity (TWIP) or transformation-induced plasticity (TRIP) effects, respectively. The present study sheds light on developing high performance HEAs. ",
keywords = "Deformation twinning, High-entropy alloy, Martensitic transformation, Phase stability, Stacking fault energy",
author = "Daixiu Wei and Xiaoqing Li and Jing Jiang and Weicheng Heng and Yuichiro Koizumi and Choi, {Won Mi} and Lee, {Byeong Joo} and Kim, {Hyoung Seop} and Hidemi Kato and Akihiko Chiba",
note = "Funding Information: This work was primarily supported by the {\textquoteleft}Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development{\textquoteright} project, Tohoku University , Japan and the Core Research Cluster of Materials Science Fusion Research project (No. J180002408 ). This work is a cooperative program (Proposal No.18G0424) of the Cooperative Research and Development Center for Advanced Materials, Institute for Materials Research, Tohoku University. A part of this work was supported by the Swedish Research Council (Grant No. 2016-00236 ), and the ab initio calculations were performed on resources provided by the Swedish National Infrastructure for Computing (SNIC) at the National Supercomputer Centre. Meanwhile, this work was partially supported by the Future Material Discovery Project of the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT of Korea ( NRF-2016M3D1A1023383 ). Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",
year = "2019",
month = may,
doi = "10.1016/j.scriptamat.2019.02.018",
language = "English",
volume = "165",
pages = "39--43",
journal = "Scripta Materialia",
issn = "1359-6462",
publisher = "Elsevier Limited",
}