Temperature dependent small-scale deformation of a refractory high entropy alloy

被引：0
|
作者：
Jha, Shristy [1 ]
Alla, Siva Shankar [1 ]
Bhowmick, Sanjit [2 ]
Mukherjee, Sundeep [1 ]
机构：
[1] Univ North Texas, Dept Mat Sci & Engn, Denton, TX 76203 USA
[2] Bruker Nano Surfaces, Minneapolis, MN 55344 USA
来源：
MATERIALS LETTERS | 2025年 / 379卷
关键词：
High entropy alloy; Refractory; Micropillar compression; RATE SENSITIVITY; STRENGTH; MODEL;
D O I：
10.1016/j.matlet.2024.137649
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Temperature-dependent deformation behavior of [110] oriented micropillars of HfTaTiVZr refractory high entropy alloy (RHEA) was studied. Engineering stress-strain curves, strain rate sensitivity measurements, and insitu observations revealed distinct deformation mechanisms at different temperatures: homogeneous at room temperature (RT), intermittent plasticity at 200 degrees C, chaotic stress drops at 400 degrees C, brittle failure at 600 degrees C, and creep-like behavior at 800 degrees C. Deformation morphology of the micropillars showed activation of few slip systems at RT and 200 degrees C, multiple slip systems at 400 degrees C, catastrophic failure at 600 degrees C, and minimal slip activity at 800 degrees C. These findings offer unique insights into the deformation of RHEAs.
引用
收藏
页数：4
相关论文
共 50 条
  • [31] High temperature deformation behavior and dynamic recrystallization in CoCrFeNiMn high entropy alloy
    Stepanov, N. D.
    Shaysultanov, D. G.
    Yurchenko, N. Yu.
    Zherebtsov, S. V.
    Ladygin, A. N.
    Salishchev, G. A.
    Tikhonovsky, M. A.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 636 : 188 - 195
  • [32] High temperature deformation and dynamic recrystallization behavior of AlCrCuFeNi high entropy alloy
    Wang, Xin
    Zhang, Yunpeng
    Ma, Xuelong
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 778
  • [33] Microstructure and high-temperature deformation behavior of FeCoNiMnV high entropy alloy
    Alijani, F.
    Reihanian, M.
    Gheisari, Kh
    Miyamoto, H.
    MATERIALS CHEMISTRY AND PHYSICS, 2020, 256
  • [34] Temperature-Dependent Configurational Entropy Calculations for Refractory High-Entropy Alloys
    Chiraag M Nataraj
    Axel van de Walle
    Amit Samanta
    Journal of Phase Equilibria and Diffusion, 2021, 42 : 571 - 577
  • [35] Temperature-Dependent Configurational Entropy Calculations for Refractory High-Entropy Alloys
    Nataraj, Chiraag M.
    van de Walle, Axel
    Samanta, Amit
    JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION, 2021, 42 (05) : 571 - 577
  • [36] ENTROPY GENERATION IN THE OCEAN BY SMALL-SCALE MIXING
    GREGG, MC
    JOURNAL OF PHYSICAL OCEANOGRAPHY, 1984, 14 (04) : 688 - 711
  • [37] Hot deformation behavior and processing maps of an equiatomic MoNbHfZrTi refractory high entropy alloy
    Dong, Fuyu
    Yuan, Ye
    Li, Weidong
    Zhang, Yue
    Liaw, Peter K.
    Yuan, Xiaoguang
    Huang, Hongjun
    INTERMETALLICS, 2020, 126
  • [38] Hot deformation characteristics and dynamic recrystallization of the MoNbHfZrTi refractory high-entropy alloy
    Guo, N. N.
    Wang, L.
    Luo, L. S.
    Li, X. Z.
    Chen, R. R.
    Su, Y. Q.
    Guo, J. J.
    Fu, H. Z.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 651 : 698 - 707
  • [39] High-temperature deformation behavior and processing maps of a novel AlNbTi3VZr1.5 refractory high entropy alloy
    Yu, Zhenxiang
    Xie, Bijun
    Zhu, Zhengwang
    Xu, Bin
    Sun, Mingyue
    JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 912
  • [40] Microstructure and small-scale size effects in plasticity of individual phases of Al0.7CoCrFeNi High Entropy alloy
    Giwa, Adenike M.
    Liaw, Peter K.
    Dahmen, Karin A.
    Greer, Julia R.
    EXTREME MECHANICS LETTERS, 2016, 8 : 220 - 228
12345