Microstructure and strength of rapidly solidified and extruded Mg-Zn alloys

被引：93
|
作者：
Maeng, DY [1 ]
Kim, TS
Lee, JH
Hong, SJ
Seo, SK
Chun, BS
机构：
[1] Chungnam Natl Univ, Rapidly Solidified Mat Res Ctr, Taejon 305764, South Korea
[2] Taedok Coll, Ind Liason Off 48, Taejon 305715, South Korea
来源：
SCRIPTA MATERIALIA | 2000年 / 43卷 / 05期
关键词：
flake; rapid solidification; cooling rate; twin rolling; precipitation hardening;
D O I：
10.1016/S1359-6462(00)00428-0
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Rapidly solidified Mg-(3,6)wt%Zn binary alloy flakes were manufactured by twin roll process and extruded. Microstructural change of the as solidified flake and the extruded bar was dependent on the composition, cooling rate and heat treating. Grain size was reduced from 125 μm in as cast alloy to 10 μm by rapid solidification, resulting in the hardness increase. Using the secondary dendrite arm spacing in the microstructure of the flake, cooling rate during the twin rolling was calculated as 2×103 K/s. Strength of the both alloy bars was measured to increase by forming MgZn′ precipitates during aging at 473 K for 15 hrs.
引用
收藏
页码：385 / 389
页数：5
相关论文
共 50 条
  • [11] THE INTERGRANULAR MICROSTRUCTURE OF CAST MG-ZN AND MG-ZN-RARE EARTH ALLOYS
    WEI, LY
    DUNLOP, GL
    WESTENGEN, H
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (08): : 1947 - 1955
  • [12] Microstructure of Rapidly Solidified Alloys of the Sn–Zn–Bi–In System
    O. V. Gusakova
    V. G. Shepelevich
    Physics of Metals and Metallography, 2018, 119 : 482 - 490
  • [13] Microstructure, Texture Evolution, and Strain Hardening Behaviour of As-extruded Mg-Zn and Mg-Y Alloys under Compression
    Xiuzhu Han
    Tao Xiao
    Zijian Yu
    Journal of Wuhan University of Technology-Mater. Sci. Ed., 2023, 38 : 430 - 439
  • [14] Microstructure, Texture Evolution, and Strain Hardening Behaviour of As-extruded Mg-Zn and Mg-Y Alloys under Compression
    韩修柱
    XIAO Tao
    于子健
    Journal of Wuhan University of Technology(Materials Science), 2023, 38 (02) : 430 - 439
  • [15] Microstructure, Texture Evolution, and Strain Hardening Behaviour of As-extruded Mg-Zn and Mg-Y Alloys under Compression
    Han, Xiuzhu
    Xiao, Tao
    Yu, Zijian
    JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION, 2023, 38 (02): : 430 - 439
  • [16] The influence of Ag and Si additions on the electrochemical behavior in extruded Mg-Zn alloys
    Ben-Hamu, Guy
    Eliezer, Amir
    ISRAEL JOURNAL OF CHEMISTRY, 2007, 47 (3-4) : 309 - 317
  • [17] Effects of Zn on microstructure, mechanical properties and corrosion behavior of Mg-Zn alloys
    Cai, Shuhua
    Lei, Ting
    Li, Nianfeng
    Feng, Fangfang
    MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2012, 32 (08): : 2570 - 2577
  • [18] Effect of precipitate volume fraction on fracture toughness of extruded Mg-Zn alloys
    Somekawa, Hidetoshi
    Osawa, Yoshiaki
    Singh, Alok
    Mukai, Toshiji
    JOURNAL OF MATERIALS RESEARCH, 2008, 23 (04) : 1128 - 1135
  • [19] Investigation on microstructure characterization and property of rapidly solidified Mg-Zn-Ca-Ce-La alloys
    Zhou, Tao
    Chen, Zhenhua
    Yang, Mingbo
    Hu, Jianjun
    Xia, Hua
    MATERIALS CHARACTERIZATION, 2012, 63 : 77 - 82
  • [20] Effect of precipitate volume fraction on fracture toughness of extruded Mg-Zn alloys
    Somekawa H.
    Osawa Y.
    Singh A.
    Mukai T.
    Journal of Materials Research, 2008, 23 (4) : 1128 - 1135
12345