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
  • [11] 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
  • [12] 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
  • [13] Effects of Cu and Ce co-addition on the microstructure and mechanical properties of Mg-6Zn-0.5Zr alloy
    Yang, Y.S. (ysyang@imr.ac.cn), 1600, Elsevier Ltd (767):
  • [14] Enhanced Strength and Corrosion Resistance of Mg-2Zn-0.6Zr Alloy with Extrusion
    Wang, Luan-Xiang
    Song, Ren-Bo
    Cai, Chang-Hong
    Li, Jing-Yuan
    ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2019, 32 (01) : 10 - 22
  • [15] Fabrication of exceptionally high-strength Mg-4Sm-0.6Zn-0.4Zr alloy via low-temperature extrusion
    Zhang, Dongdong
    Pan, Hucheng
    Li, Jingren
    Xie, Dongsheng
    Zhang, Deping
    Che, Chaojie
    Meng, Jian
    Qin, Gaowu
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2022, 833
  • [16] Formation and microstructure of shear bands during hot rolling of a Mg-6Zn-0.5Zr alloy plate with a basal texture
    Wang, Yannan
    Xin, Yunchang
    Yu, Huihui
    Lv, Liangchen
    Liu, Qing
    JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 644 : 147 - 154
  • [17] Enhanced Strength and Corrosion Resistance of Mg–2Zn–0.6Zr Alloy with Extrusion
    Luan-Xiang Wang
    Ren-Bo Song
    Chang-Hong Cai
    Jing-Yuan Li
    Acta Metallurgica Sinica (English Letters), 2019, 32 : 10 - 22
  • [18] Enhanced Strength and Corrosion Resistance of Mg–2Zn–0.6Zr Alloy with Extrusion
    Luan-Xiang Wang
    Ren-Bo Song
    Chang-Hong Cai
    Jing-Yuan Li
    Acta Metallurgica Sinica(English Letters), 2019, 32 (01) : 10 - 22
  • [19] Enhanced plasticity and creep in an extruded Mg-Zn-Zr alloy
    Spigarelli, S.
    El Mehtedi, M.
    Regev, M.
    SCRIPTA MATERIALIA, 2010, 63 (06) : 617 - 620
  • [20] Enhanced yield symmetry and strength-ductility balance of caliber-rolled Mg-6Zn-0.5Zr with ultrafine-grained structure and bulk dimension
    Lee, Taekyung
    Kwak, Byung Je
    Kong, Taein
    Lee, Jeong Hun
    Lee, Sang Won
    Park, Sung Hyuk
    JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 803 : 434 - 441
12345