TY - JOUR
T1 - Solid-solution strengthening of Ti-Zr-Hf-Nb-Ta-Fe refractory high-entropy alloy
AU - Liu, Fuxin
AU - Wang, Benpeng
AU - Wang, Lu
AU - Xue, Yunfei
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2022
Y1 - 2022
N2 - Ti-Zr-Hf-Nb-Ta system refractory high-entropy alloys (RHEAs) exhibits outstanding tensile ductility in room temperature. However, the moderate yield strength of them is insufficient. In this work, the Fe element with small atomic radius was added into a non-equiatomic Ti-Zr-Hf-Nb-Ta RHEA for furtherly improving the yield strength. As a result, the yield strength of modified RHEA is as high as ∼970 MPa, while retains a considerable fracture train of ∼17.5%. However, the Hf2Fe brittle precipitates were formed at grain boundary after aging treatment, leading to a further increment of yield strength but severe deterioration of ductility.
AB - Ti-Zr-Hf-Nb-Ta system refractory high-entropy alloys (RHEAs) exhibits outstanding tensile ductility in room temperature. However, the moderate yield strength of them is insufficient. In this work, the Fe element with small atomic radius was added into a non-equiatomic Ti-Zr-Hf-Nb-Ta RHEA for furtherly improving the yield strength. As a result, the yield strength of modified RHEA is as high as ∼970 MPa, while retains a considerable fracture train of ∼17.5%. However, the Hf2Fe brittle precipitates were formed at grain boundary after aging treatment, leading to a further increment of yield strength but severe deterioration of ductility.
UR - http://www.scopus.com/inward/record.url?scp=85145440715&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/2383/1/012141
DO - 10.1088/1742-6596/2383/1/012141
M3 - Conference article
AN - SCOPUS:85145440715
SN - 1742-6588
VL - 2383
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012141
T2 - 2022 8th International Conference on Mechanical Engineering, Materials and Automation Technology, MMEAT 2022
Y2 - 27 May 2022 through 29 May 2022
ER -