Cellular structure mediated dislocation regulation in additively manufactured refractory high entropy alloy

被引：15
作者：
Liu, Changxi [1 ]
Xie, Lechun [2 ,3 ]
Zhang, Lai-Chang [4 ]
Wang, Liqiang [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
[2] Wuhan Univ Technol, Hubei Key Lab Adv Technol Automot Components, Wuhan, Peoples R China
[3] Hubei Collaborat Innovat Ctr Automot Components Te, Wuhan, Peoples R China
[4] Edith Cowan Univ, Ctr Adv Mat & Mfg, Sch Engn, 270 Joondalup Dr, Perth, 6027, Australia
来源：
MATERIALS RESEARCH LETTERS | 2024年 / 12卷 / 06期
基金：
中国国家自然科学基金;
关键词：
LASER METAL-DEPOSITION; STAINLESS-STEELS; DUCTILITY;
D O I：
10.1080/21663831.2024.2341937
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Ti1.5Nb1Ta0.5Zr1Mo0.5 (TNTZM) refractory high entropy alloy (HEA) with a cellular structure was successfully fabricated by laser powder bed fusion (L-PBF). Compression testing and cyclic deformation testing results revealed that, in the cellular structure, the cell walls could store dislocations. Furthermore, the local chemical order (LCO) plays a crucial role in controlling dislocations within the cell wall region. The LCO not only facilitates dislocation slip but also generates additional lattice distortion upon stress-induced LCO destruction to enable dislocation pinning. This work offers novel insights into the microstructure of additively manufactured refractory HEAs and uncovers a distinct dislocation regulation mechanism. [GRAPHICS] .
引用
收藏
页码：425 / 432
页数：8
相关论文
共 38 条
[1]  
Bang X., 2022, Addit Manuf, V54, P102728
[2]   Local chemical fluctuation mediated ductility in body-centered-cubic high-entropy alloys [J].
Bu, Yeqiang ;
Wu, Yuan ;
Lei, Zhifeng ;
Yuan, Xiaoyuan ;
Wu, Honghui ;
Feng, Xiaobin ;
Liu, Jiabin ;
Ding, Jun ;
Lu, Yang ;
Wang, Hongtao ;
Lu, Zhaoping ;
Yang, Wei .
MATERIALS TODAY, 2021, 46 :28-34
[3]   Additive manufacturing of metallic lattice structures: Unconstrained design, accurate fabrication, fascinated performances, and challenges [J].
Chen, Liang-Yu ;
Liang, Shun-Xing ;
Liu, Yujing ;
Zhang, Lai-Chang .
MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2021, 146
[4]   Laser metal deposition of compositionally graded TiZrNbTa refractory high-entropy alloys using elemental powder blends [J].
Dobbelstein, Henrik ;
Gurevich, Evgeny L. ;
George, Easo P. ;
Ostendorf, Andreas ;
Laplanche, Guillaume .
ADDITIVE MANUFACTURING, 2019, 25 :252-262
[5]   Laser metal deposition of a refractory TiZrNbHfTa high-entropy alloy [J].
Dobbelstein, Henrik ;
Gurevich, Evgeny L. ;
George, Easo P. ;
Ostendorf, Andreas ;
Laplanche, Guillaume .
ADDITIVE MANUFACTURING, 2018, 24 :386-390
[6]   Preparation of TiNbTaZrMo high-entropy alloy with tunable Young's modulus by selective laser melting [J].
Feng, Junyi ;
Wei, Daixiu ;
Zhang, Peilei ;
Yu, Zhishui ;
Liu, Changxi ;
Lu, Weijie ;
Wang, Kuaishe ;
Yan, Hua ;
Zhang, Laichang ;
Wang, Liqiang .
JOURNAL OF MANUFACTURING PROCESSES, 2023, 85 :160-165
[7]   Bio-high entropy alloys: Progress, challenges, and opportunities [J].
Feng, Junyi ;
Tang, Yujin ;
Liu, Jia ;
Zhang, Peilei ;
Liu, Changxi ;
Wang, Liqiang .
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY, 2022, 10
[8]   Additive manufacturing of ductile refractory high-entropy alloys via phase engineering [J].
Gou, Shuyuan ;
Gao, Mingyu ;
Shi, Yunzhu ;
Li, Shunchao ;
Fang, Youtong ;
Chen, Xinhuan ;
Chen, Huaican ;
Yin, Wen ;
Liu, Jiabin ;
Lei, Zhifeng ;
Wang, Hongtao .
ACTA MATERIALIA, 2023, 248
[9]   Material-structure-performance integrated laser-metal additive manufacturing [J].
Gu, Dongdong ;
Shi, Xinyu ;
Poprawe, Reinhart ;
Bourell, David L. ;
Setchi, Rossitza ;
Zhu, Jihong .
SCIENCE, 2021, 372 (6545) :932-+
[10]   Additive manufacturing and its societal impact: a literature review [J].
Huang, Samuel H. ;
Liu, Peng ;
Mokasdar, Abhiram ;
Hou, Liang .
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2013, 67 (5-8) :1191-1203
1234