Enhanced strength and plasticity of Mg-6Zn-0.5Zr alloy by low-temperature indirect extrusion

被引：21
|
作者：
Kim, Beomcheol [1 ]
Baek, Soo-Min [1 ]
Lee, Jung Gu [2 ]
Park, Sung Soo [1 ]
机构：
[1] Ulsan Natl Inst Sci & Technol, Sch Mat Sci & Engn, Ulsan 44919, South Korea
[2] Univ Ulsan, Sch Mat Sci & Engn, Ulsan 44610, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 706卷
基金：
新加坡国家研究基金会;
关键词：
Magnesium alloys; Extrusion; Grain refinement; Strength; Superplasticity; ZN-ZR ALLOY; GRAIN-REFINEMENT; MAGNESIUM ALLOY; STRUCTURAL SUPERPLASTICITY; DYNAMIC RECRYSTALLIZATION; MECHANICAL-PROPERTIES; ZK60; ALLOY; MG ALLOYS; BEHAVIOR; DEFORMATION;
D O I：
10.1016/j.jallcom.2017.02.206
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The microstructure and tensile properties of Mg-6Zn-0.5Zr alloy processed by low-temperature indirect extrusion utilizing artificial cooling were investigated. Remarkable grain refinement was obtained by the application of artificial cooling, resulting in an increase in the yield strength of as much as 53 MPa at room temperature, as compared to the case (245 MPa) of indirect extrusion without artificial cooling. Besides this, the fine-grained alloy was found to have superplastic properties at elevated temperature, revealing tensile elongations of 720-810% at 200 degrees C at strain rates of 2 x 10(-4)-1 x 10(-3) s(-1). Mechanisms responsible for the high strength and superplastic properties are discussed. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：56 / 62
页数：7
相关论文
共 50 条
  • [1] High-strain-rate superplasticity of fine-grained Mg-6Zn-0.5Zr alloy subjected to low-temperature indirect extrusion
    Kim, Beomcheol
    Kim, Jong Chan
    Lee, Sooseok
    Lee, Ki-Suk
    Lee, Jung Gu
    Park, Sung Soo
    SCRIPTA MATERIALIA, 2017, 141 : 138 - 142
  • [2] Effects of reduced extrusion temperature on microstructure and mechanical properties of Mg-6Zn-0.5Zr alloy
    Lv, Shuhui
    Yang, Qiang
    Lv, Xiaoling
    Meng, Fanzhi
    Qiu, Xin
    MATERIALS & DESIGN, 2023, 225
  • [3] Enhanced mechanical properties of Mg-Zn-Y-Zr alloy by low-speed indirect extrusion
    Xu, Yuzhao
    Li, Jingyuan
    Qi, Mingfan
    Liao, Luhai
    Gao, Zhijun
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2020, 9 (05): : 9856 - 9867
  • [4] Enhancing Degradation Resistance of Biomedical Mg-6Zn-0.5Zr Alloy by the Incorporation of Nanodiamond
    Liu, Long
    He, Shun
    Guo, Zhiming
    Li, Jian
    Zhao, Mingchun
    Wu, Yiping
    MATERIALS, 2022, 15 (19)
  • [5] A high strength Mg-6Zn-1Y-1Ce alloy prepared by hot extrusion
    Yang Wenpeng
    Guo Xuefeng
    JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION, 2013, 28 (02): : 389 - 395
  • [6] Effects of Cu and Ce co-addition on the microstructure and mechanical properties of Mg-6Zn-0.5Zr alloy
    He, M. L.
    Luo, T. J.
    Liu, Y. T.
    Lin, T.
    Zhou, J. X.
    Yang, Y. S.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 767 : 1216 - 1224
  • [7] Microstructures and damping capacity of Mg-6Zn-0.5Zr alloy
    Liu, Xianlan
    Liu, Chuming
    Zhang, Wenyu
    Luo, Jianhua
    Zeng, Sumin
    ADVANCED MATERIALS AND PROCESSES II, PTS 1-3, 2012, 557-559 : 1624 - +
  • [8] Grain refinement and improved tensile properties of Mg-3Al-1Zn alloy processed by low-temperature indirect extrusion
    Kim, Beomcheol
    Park, Chan Ho
    Kim, Ha Sik
    You, Bong Sun
    Park, Sung Soo
    SCRIPTA MATERIALIA, 2014, 76 : 21 - 24
  • [9] Development of extraordinary high-strength Mg-8Al-0.5Zn alloy via a low temperature and slow speed extrusion
    Yu, Hui
    Park, Sung Hyuk
    You, Bong Sun
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 610 : 445 - 449
  • [10] Enhanced Precipitation and Recrystallization in a Mg-Zn Alloy During Low-Temperature Extrusion
    Prameela, Suhas Eswarappa
    Lipkin, Elaine
    Chen, Joey
    Kecskes, Laszlo
    Xu, Zhigang
    Weihs, Timothy
    23RD INTERNATIONAL CONFERENCE ON MATERIAL FORMING, 2020, 47 : 1476 - 1480
12345