Effect of Grain Size on the Shear Banding Behavior of Ti-6Al-4V Alloy Under Quasi-Static Compression

被引：9
作者：
Long, Yan [1 ]
Peng, Liang [2 ]
Zhang, Weihua [2 ]
Peng, Haiyan [1 ]
Zhang, Jinfu [2 ]
Huang, Xiaolong [3 ]
机构：
[1] South China Univ Technol, Sch Mech & Automot Engn, Guangdong Prov Key Lab Proc & Forming Adv Metall, Guangzhou 510640, Peoples R China
[2] South China Univ Technol, Natl Near Net Shape Forming Engn Res Ctr Metall M, Guangzhou 510640, Peoples R China
[3] Xiamen Golden Egret Special Alloy Co Ltd, Xiamen 361006, Peoples R China
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2020年 / 51卷 / 05期
关键词：
TITANIUM-ALLOY; MECHANICAL-BEHAVIOR; DEFORMATION; DUCTILITY;
D O I：
10.1007/s11661-020-05695-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ti-6Al-4V alloys with average grain sizes of 0.3 to 1.5 mu m were fabricated by high-energy ball milling (HEBM) and spark plasma sintering (SPS). Mechanical properties and deformation behaviors of sintered Ti-6Al-4V samples were investigated. The compressive yield strength increases while the ductility diminishes when the average grain size of Ti-6Al-4V decreases. Localization of plastic deformation occurs in all the fine-grained titanium alloys under quasi-static compression. Macro shear bands are observed in the deformed Ti-6Al-4V specimens with average grain size of 1.5 mu m. When the grains are refined to ultrafine-grained regime, not only macro shear bands but also micro shear bands are generated in the deformed specimens. It is found that the spacing distance between macro shear bands increases once the micro shear bands are formed, indicating that the generation of profuse micro shear bands could suppress the nucleation of macro shear bands.
引用
收藏
页码：2064 / 2071
页数：8
相关论文
共 13 条
[1]   Analysis of the different slip systems activated by tension in a α/β titanium alloy in relation with local crystallographic orientation [J].
Bridier, F ;
Villechaise, P ;
Mendez, J .
ACTA MATERIALIA, 2005, 53 (03) :555-567
[2]   In situ transmission electron microscopy deformation of the titanium alloy Ti-6Al-4V: Interface behaviour [J].
Castany, P. ;
Pettinari-Sturmel, E. ;
Douin, J. ;
Coujou, A. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 483-84 (1-2 C) :719-722
[3]   Mechanical behavior of nanocrystalline metals and alloys [J].
Kumar, KS ;
Van Swygenhoven, H ;
Suresh, S .
ACTA MATERIALIA, 2003, 51 (19) :5743-5774
[4]   Plastic deformation and fracture behaviour of Ti-6Al-4V alloy loaded with high strain rate under various temperatures [J].
Lee, WS ;
Lin, CF .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 241 (1-2) :48-59
[5]  
LEYENS C., 2003, Fundamentals and Applications, P1
[6]   Dynamic deformation and failure of ultrafine-grained titanium [J].
Li, Zezhou ;
Wang, Bingfeng ;
Zhao, Shiteng ;
Valiev, Ruslan Z. ;
Vecchio, Kenneth S. ;
Meyers, Marc A. .
ACTA MATERIALIA, 2017, 125 :210-218
[7]   Enhanced ductility in a bimodal ultrafine-grained Ti-6Al-4V alloy fabricated by high energy ball milling and spark plasma sintering [J].
Long, Y. ;
Wang, T. ;
Zhang, H. Y. ;
Huang, X. L. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 608 :82-89
[8]   Deformation twinning in fatigue crack tip plastic zone of Ti-6Al-4V alloy with Widmanstatten microstructure [J].
Ma, Yingjie ;
Xue, Qi ;
Wang, Hao ;
Huang, Sensen ;
Qiu, Jianke ;
Feng, Xin ;
Lei, Jiafeng ;
Yang, Rui .
MATERIALS CHARACTERIZATION, 2017, 132 :338-347
[9]  
Matthew J.Donachie., 2000, TITANIUM TECHNICAL G
[10]   Tensile deformation of an ultrafine-grained aluminium alloy: Micro shear banding and grain boundary sliding [J].
Sabirov, I. ;
Estrin, Y. ;
Barnett, M. R. ;
Timokhina, I. ;
Hodgson, P. D. .
ACTA MATERIALIA, 2008, 56 (10) :2223-2230
12