Microhardness, microstructure and tensile behavior of an AZ31 magnesium alloy processed by high-pressure torsion

被引：1
|
作者：
Jie Xu
Xinwei Wang
Mahmood Shirooyeh
Guangnan Xing
Debin Shan
Bin Guo
Terence G. Langdon
机构：
[1] Harbin Institute of Technology,Key Laboratory of Micro
[2] Harbin Institute of Technology,systems and Micro
[3] University of Southern California,structures Manufacturing, Ministry of Education
[4] University of Southampton,Academy of Fundamental and Interdisciplinary Sciences
来源：
Journal of Materials Science | 2015年 / 50卷
关键词：
Magnesium Alloy; Severe Plastic Deformation; AZ31 Alloy; AZ31 Magnesium Alloy; Initial Strain Rate;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An AZ31 magnesium alloy was processed by high-pressure torsion (HPT) at room temperature under an imposed pressure of 6.0 GPa. Microstructural analysis showed that the HPT processing introduced significant grain refinement with a reduction in grain size from ~35 μm in the initial annealed condition to ~110 nm after ten turns of HPT. Microhardness measurements showed that a reasonable level of hardness homogeneity was achieved across the disk processed through ten turns. The results from tensile testing demonstrated that the ultrafine-grained (UFG) AZ31 alloy processed by HPT exhibits high ductility with a maximum elongation of ~400 % at the relatively low testing temperature of 423 K. The results confirm that the UFG AZ31 magnesium alloy processed by HPT through ten turns has a strong potential for use in micro-forming applications.
引用
收藏
页码：7424 / 7436
页数：12
相关论文
共 50 条
  • [1] Microhardness, microstructure and tensile behavior of an AZ31 magnesium alloy processed by high-pressure torsion
    Xu, Jie
    Wang, Xinwei
    Shirooyeh, Mahmood
    Xing, Guangnan
    Shan, Debin
    Guo, Bin
    Langdon, Terence G.
    [J]. JOURNAL OF MATERIALS SCIENCE, 2015, 50 (22) : 7424 - 7436
  • [2] An evaluation of high temperature tensile properties for a magnesium AZ31 alloy processed by high-pressure torsion
    Huang, Y.
    Pereira, P. H. R.
    Figueiredo, R. B.
    Baudin, T.
    Helbert, A. -L.
    Brisset, F.
    Langdon, T. G.
    [J]. LETTERS ON MATERIALS-PIS MA O MATERIALAKH, 2015, 5 (03): : 341 - 346
  • [3] INVESTIGATION OF MICROHARDNESS AND MICROSTRUCTURE OF AZ31 ALLOY AFTER HIGH PRESSURE TORSION
    Vratna, Jitka
    Janecek, Milos
    Strasky, Josef
    Kim, Hyoung Seop
    Yoon, Eun-Yoo
    [J]. MAGNESIUM TECHNOLOGY 2011, 2011, : 589 - 594
  • [4] Evolution of microstructure and hardness in AZ31 alloy processed by high pressure torsion
    Straska, Jitka
    Janecek, Milos
    Gubicza, Jeno
    Krajnak, Tomas
    Yoon, Eun Yoo
    Kim, Hyoung Seop
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 625 : 98 - 106
  • [5] Evolution of Strength and Homogeneity in a Magnesium AZ31 Alloy Processed by High-Pressure Torsion at Different Temperatures
    Huang, Yi
    Figueiredo, Roberto B.
    Baudin, Thierry
    Brisset, Francois
    Langdon, Terence G.
    [J]. ADVANCED ENGINEERING MATERIALS, 2012, 14 (11) : 1018 - 1026
  • [6] Structural Evolution on the Cross-Section of an AZ31 Magnesium Alloy Processed by High-Pressure Torsion
    Figueiredo, Roberto B.
    Langdon, Terence G.
    [J]. NANOMATERIALS BY SEVERE PLASTIC DEFORMATION: NANOSPD5, PTS 1 AND 2, 2011, 667-669 : 247 - +
  • [7] Evolution of microstructure and hardness in an AZ80 magnesium alloy processed by high-pressure torsion
    Alsubaie, Saad A.
    Bazarnik, Piotr
    Lewandowska, Malgorzata
    Huang, Yi
    Langdon, Terence G.
    [J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2016, 5 (02): : 152 - 158
  • [8] An evaluation of formability using micro-embossing on an ultrafine-grained magnesium AZ31 alloy processed by high-pressure torsion
    Xu, Jie
    Xing, Guangnan
    Shan, Debin
    Guo, Bin
    Langdon, Terence G.
    [J]. 4TH INTERNATIONAL CONFERENCE ON NEW FORMING TECHNOLOGY (ICNFT 2015), 2015, 21
  • [9] Effect of hot torsion deformation on microstructure in AZ31 magnesium alloy
    Zarandi, Faramarz
    Verma, Ravi
    Essadiqi, Elhachmi
    Yue, Stephen
    [J]. MAGNESIUM TECHNOLOGY 2006, PROCEEDINGS, 2006, : 367 - +
  • [10] Evolution of microstructure in AZ91 alloy processed by high-pressure torsion
    Al-Zubaydi, Ahmed S. J.
    Zhilyaev, Alexander P.
    Wang, Shun C.
    Kucita, P.
    Reed, Philippa A. S.
    [J]. JOURNAL OF MATERIALS SCIENCE, 2016, 51 (07) : 3380 - 3389
12345