Effect of precipitation on the kink deformation and damage in a (WTaNb)50Hf50 body-centered-cubic high-entropy alloy at high strain rate

被引：0

作者：

Xu, Jichen ^{[1
,2
,3
]}

Zhang, Fan ^{[1
,2
,3
,4
]}

Zhang, Zigao ^{[1
,2
]}

Tang, Qinghui ^{[1
,2
]}

He, Jianye ^{[1
,2
]}

He, Jingyao ^{[1
,2
]}

Xiao, Yao ^{[1
]}

Cheng, Xingwang ^{[1
,2
,3
,4
]}

机构：

[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing, Peoples R China

[2] Natl Key Lab Sci & Technol Mat Shock & Impact, Beijing, Peoples R China

[3] Beijing Inst Technol, Tangshan Res Inst, Tangshan, Peoples R China

[4] Beijing Inst Technol, Mat Intelligent Innovat Lab MIIL, Zhuhai, Guangdong, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2025年 / 942卷

基金：

中国国家自然科学基金;

关键词：

High-entropy alloy; Precipitation; Kink banding; Damage; High strain rate; MICROSTRUCTURAL EVOLUTION; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; BAND FORMATION; BEHAVIOR;

D O I：

10.1016/j.msea.2025.148641

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Understanding the deformation and damage behavior of precipitation hardening body-centered cubic (BCC) high-entropy alloys (HEAs) at high-strain-rate is critical for their applications in extreme loading conditions. Here we report the effect of precipitation on kink deformation and damage in a (WTaNb)50Hf50 alloy at high strain rate. We find that the dynamic ultimate compressive strength of aged alloy reaches 2400 MPa due to the precipitation hardening. Compared with the as-cast alloy, the presence of precipitation increases the crystallographic misorientation of kink bands without altering crystallographic feature under not only quasi-static but also dynamic loadings. Furthermore, due to the occurrence of more cracks in precipitation hardening alloy, the failure mode shifts from the combination of adiabatic shear band and intergranular fracture in the as-cast alloy to a single intergranular fracture in the precipitation hardening alloy, leading to the reduction of the dynamic fracture strain by 8 %.

引用

页数：13

共 63 条

[1] Spinodal-modulated solid solution delivers a strong and ductile refractory high-entropy alloy [J].

An, Zibing ;

Mao, Shengcheng ;

Yang, Tao ;

Liu, Chain Tsuan ;

Zhang, Bin ;

Ma, Evan ;

Zhou, Hao ;

Zhang, Ze ;

Wang, Lihua ;

Han, Xiaodong .

MATERIALS HORIZONS, 2021, 8 (03) :948-955

[2] Effect of strain rate and temperature on deformation and recrystallization behaviour of BCC structure AlCoCrFeNi high entropy alloy [J].

Arab, Ali ;

Guo, Yansong ;

Sktani, Zhwan Dilshad Ibrahim ;

Chen, Pengwan .

INTERMETALLICS, 2022, 147

[3] ON SPINODAL DECOMPOSITION [J].

CAHN, JW .

ACTA METALLURGICA, 1961, 9 (09) :795-801

[4] Influence of Temperature and Plastic Strain on Deformation Mechanisms and Kink Band Formation in Homogenized HfNbTaTiZr [J].

Chen, Hans ;

Hanemann, Theresa ;

Seils, Sascha ;

Schliephake, Daniel ;

Tirunilai, Aditya Srinivasan ;

Heilmaier, Martin ;

Weiss, Klaus-Peter ;

Kauffmann, Alexander .

CRYSTALS, 2021, 11 (02) :1-13

[5] Phase decomposition and strengthening in HfNbTaTiZr high entropy alloy from first-principles calculations [J].

Chen, Shu-Ming ;

Ma, Ze-Jun ;

Qiu, Shi ;

Zhang, Lian-Ji ;

Zhang, Shang-Zhou ;

Yang, Rui ;

Hu, Qing-Miao .

ACTA MATERIALIA, 2022, 225

[6] Kink bands promote exceptional fracture resistance in a NbTaTiHf refractory medium-entropy alloy [J].

Cook, David H. ;

Kumar, Punit ;

Payne, Madelyn I. ;

Belcher, Calvin H. ;

Borges, Pedro ;

Wang, Wenqing ;

Walsh, Flynn ;

Li, Zehao ;

Devaraj, Arun ;

Zhang, Mingwei ;

Asta, Mark ;

Minor, Andrew M. ;

Lavernia, Enrique J. ;

Apelian, Diran ;

Ritchie, Robert O. .

SCIENCE, 2024, 384 (6692) :178-184

[7] Dynamic Behavior of Materials [J].

Dannemann, K. A. ;

Chalivendra, V. B. ;

Song, B. .

EXPERIMENTAL MECHANICS, 2012, 52 (02) :117-118

[8] Cracking behaviour of high-strength AA2024 aluminium alloy produced by Laser Powder Bed Fusion [J].

Del Guercio, G. ;

McCartney, D. G. ;

Aboulkhair, N. T. ;

Robertson, S. ;

Maclachlan, R. ;

Tuck, C. ;

Simonelli, M. .

ADDITIVE MANUFACTURING, 2022, 54

[9] Mechanical behavior and microstructure of Ti20Hf20Zr20Ta20Nb20 high-entropy alloy loaded under quasi-static and dynamic compression conditions [J].

Dirras, G. ;

Couque, H. ;

Lilensten, L. ;

Heczel, A. ;

Tingaud, D. ;

Couzinie, J. -P. ;

Perriere, L. ;

Gubicza, J. ;

Guillot, I. .

MATERIALS CHARACTERIZATION, 2016, 111 :106-113

[10] Effect of Ta on the microstructure and mechanical properties of W-Ta alloys prepared by arc melting [J].

Duan, Xinyun ;

Huang, Yufeng ;

Liu, Wenyang ;

Cai, Qingshan ;

Liu, Wensheng ;

Ma, Yunzhu .

MATERIALS CHARACTERIZATION, 2022, 188

← 1 2 3 4 5 6 7 →