Effect of Gd addition on the microstructure and age hardening behavior of Mg-6Zn-1Mn-4Sn (wt.%) alloy

被引：17
作者：
Zhao, Yang [1 ,2 ]
Zhang, Dingfei [1 ,2 ]
Lei, Renjie [1 ,2 ]
Wang, Peng [1 ,2 ]
Feng, Jingkai [1 ,2 ]
Chen, Xia [1 ,2 ]
Jiang, Bin [1 ,2 ]
Pan, Fusheng [2 ,3 ]
机构：
[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China
[3] Chongqing Acad Sci & Technol, Chongqing 401123, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2020年 / 9卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Mg-Zn-Mn-Sn-Gd alloys; MgSnGd particles; Age hardening behavior; Mechanical properties; MECHANICAL-PROPERTIES; SN-Y; ZN; PRECIPITATION; PHASE; DEFORMATION; DUCTILITY;
D O I：
10.1016/j.jmrt.2020.09.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure evolution and age hardening behavior of Mg-6Zn-1Mn-4Sn (wt.%, ZMT614) through various Gd addition were investigated. The as-cast ZMT614 alloy was mainly composed of Mg2Sn, Mg7Zn3 and alpha-Mg solid solution, and new MgSnGd phases were detected with Gd addition. The MgSnGd phase nucleated prior to Mg2Sn during solidification, resulting in consumption of Sn element and reduction of Mg2Sn phase. Owing to the pinning effect of MgSnGd phase, some dislocations were preserved during solution treatment. The retained dislocations could act as heterogeneous nucleation sites for the rod-like beta(1)precipitates. A trace of Gd addition could enhance the peak hardness and shorten the peak aging time, while excessive Gd addition would weaken the age hardening response. The ZMT614-0.2Gd alloy exhibited the optimum mechanical properties with yield strength of 373 +/- 4 MPa and ultimate tensile strength of 405 +/- 6 MPa. (C) 2020 The Author(s). Published by Elsevier B.V.
引用
收藏
页码：12737 / 12746
页数：10
相关论文
共 50 条
  • [21] Effect of 0.45 wt.% Nd Addition on the Corrosion Resistance of Extruded Mg-6Al-3Sn-2Zn Alloy
    Lv, Bin-Jiang
    Gao, Fu-Hao
    Lv, Jun-Jiang
    Peng, Jian
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2024, 33 (16) : 8262 - 8273
  • [22] The Effect of Y Addition on the Microstructure and Work Hardening Behavior of Mg-Zn-Zr Alloys
    Najafi, Soroush
    Palizdar, Yahya
    Sheikhani, Alireza
    Soltan Ali Nezhad, Mehdi
    Abdiyan, Fateme
    Banijamali, Seyyed Masih
    Torkamani, Hadi
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2021, 30 (04) : 2574 - 2585
  • [23] Insights into creep behavior of Mg-14Gd-1Zn-0.4Zr (wt.%) alloy containing β- and γ-type precipitates
    Shi, Hui
    Yang, Lixiang
    Huang, Yuanding
    Zhou, Shibo
    Wang, Kun
    Liu, Chunquan
    Gavras, Sarkis
    Xiao, Lv
    Willumeit-Roemer, Regine
    Dieringa, Hajo
    Hort, Norbert
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2024, 893
  • [24] Creep Behavior of As-Cast Mg-10 wt.%Sn and Mg-10 wt.%Sn-3 wt.%Al-1 wt.%Zn Alloys: A Comparative Study
    Bagui, Sumanta
    Murugesan, A. P.
    Poddar, Palash
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2019, 28 (12) : 7616 - 7628
  • [25] Microstructure, Tensile Properties and Work Hardening Behavior of an Extruded Mg-Zn-Ca-Mn Magnesium Alloy
    Nie, Kai-Bo
    Zhu, Zhi-Hao
    Munroe, Paul
    Deng, Kun-Kun
    Han, Jun-Gang
    ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2020, 33 (07) : 922 - 936
  • [26] Effect of dispersoid formation on age hardening and precipitation behavior of an Al-Si-Mg(-Cu) alloy with Mn and Cr addition
    Qian, Dongling
    Yang, Yitao
    JOURNAL OF ALLOYS AND COMPOUNDS, 2024, 1008
  • [27] Precipitation microstructure and age-hardening response of an Mg-Gd-Nd-Zn-Zr alloy
    Li, J. H.
    Sha, G.
    Wang, T. Y.
    Jie, W. Q.
    Ringer, S. P.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 534 : 1 - 6
  • [28] Solidification, solution treatment and age hardening of a Mg-1.6 wt.% Ca-3.2 wt.% Zn alloy
    Levi, G
    Avraham, S
    Zilberov, A
    Bamberger, M
    ACTA MATERIALIA, 2006, 54 (02) : 523 - 530
  • [29] Effects of extrusion and Ag, Zn addition on the age-hardening response and microstructure of a Mg-7Sn alloy
    Huang, Xuefei
    Wu, Aolu
    Li, Qing
    Huang, Weigang
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 661 : 233 - 239
  • [30] Investigation on the Effect of Si Addition in Controlling the Microstructure of Mg-4wt%A1-4wt%RE Alloy
    Hari, Vigneshwar
    Qu, Dongdong
    Abbott, Trevor B.
    Nogita, Kazuhiro
    MAGNESIUM TECHNOLOGY 2022, 2022, : 53 - 60
12345