Study on Microstructure and Mechanical Properties of Mg9AlZnGdY Magnesium Alloy after T6 in Lost Foam Casting

被引：0
|
作者：
Zhao, Zhong [1 ]
Luo, Qiang [2 ]
Fan, Zi Tian [2 ]
机构：
[1] Ningbo Univ Technol, Sch Mech Engn, Ningbo 315016, Zhejiang, Peoples R China
[2] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
来源：
MATERIALS PROCESSING TECHNOLOGY, PTS 1-4 | 2011年 / 291-294卷
基金：
国家高技术研究发展计划(863计划); 浙江省自然科学基金;
关键词：
Magnesium alloy; lost foam casting (LFC); microstructure; mechanical property;
D O I：
10.4028/www.scientific.net/AMR.291-294.565
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructures and mechanical properties of Mg9A1ZnGdY alloy after T6 heat treatment in lost foam casting (LFC) are compared with that of AZ91D magnesium alloy. The results show that the microstructures of Mg9AIZnGdY alloy after T6 heat treatment consist of the alpha-Mg solid solution, beta-Mg17Al12 precipitation phase, a small amount of rod Al2Y and block Al2Gd phases, which are distributed over grain boundaries of the alpha-Mg phase. The thermal stability of Al2Y and Al2Gd phases offers the pinning effect on the grain boundary under high temperature, and therefore, the grain boundary sliding is eliminated and the high-temperature strength is increased. After the 16 heat treatment, the tensile strength of Mg9A1ZnGdY alloy was 235MPa at room temperature, and 156MPa at 200 degrees C. Compared with that of AZ91 D alloy, the tensile strength was increased by 19.3% and 38.1% respectively.
引用
收藏
页码：565 / +
页数：2
相关论文
共 50 条
  • [21] Effects of vibration and alloying on microstructure and properties of AZ91D magnesium alloy via lost foam casting
    State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China
    Zhongguo Youse Jinshu Xuebao, 2007, 7 (1047-1052):
  • [22] Effects of yttrium on microstructure and mechanical properties of Mg-6Al magnesium alloy
    Ren Wenliang
    Li Quan'an
    Li Jianhong
    Li Kejie
    Zhang Xingyuan
    CHINA FOUNDRY, 2010, 7 (04) : 362 - 366
  • [23] Microstructure and mechanical properties of Mg-6Al magnesium alloy with yttrium and neodymium
    Chen Jun
    China Foundry, 2009, 6 (02) : 124 - 128
  • [24] Effects of yttrium on microstructure and mechanical properties of Mg-6Al magnesium alloy
    Ren Wenliang 1
    2. School of Material Science and Engineering
    China Foundry, 2010, 7 (04) : 362 - 366
  • [25] Effect of Mechanical Vibration on Microstructure and Mechanical Properties of Gray Cast Iron in Lost Foam Casting
    Qiu, Kai
    Xiao, Bota
    MATHEMATICAL PROBLEMS IN ENGINEERING, 2021, 2021
  • [26] Effect of T6 heat treatment on microstructure and mechanical properties of 6082 aluminum alloy automotive flange components formed by squeeze casting
    Jiang, Jufu
    Cui, Jingbo
    Wang, Ying
    Huang, Minjie
    Dong, Jian
    Yan, Jing
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2024, 912
  • [27] Influence of Calcium on the Castability, Microstructure and Mechanical Properties of Lost Foam Cast AE42 Magnesium Alloy
    Sin, S. Lun
    Lombardi, A.
    Ravindran, C.
    TRANSACTIONS OF THE AMERICAN FOUNDRY SOCIETY, VOL 117, 2009, 117 : 651 - 658
  • [28] Effect of electromagnetic stirring on interfacial microstructure and mechanical properties of Al/Mg bimetal produced by lost foam compound casting
    Yu, Linghui
    Ma, Yuxi
    Li, Qingqing
    Xu, Yuancai
    Yu, Xiaopeng
    Peng, Ziwei
    Jiang, Wenming
    Journal of Materials Research and Technology, 2024, 33 : 2101 - 2111
  • [29] Microstructure and mechanical properties of a rare earth rich magnesium casting alloy
    Angelini, V.
    Boromei, I.
    Ceschini, L.
    Morni, A.
    METALLURGIA ITALIANA, 2015, (09): : 31 - 36
  • [30] Correlation of microstructure with mechanical properties and fracture behavior of A356-T6 aluminum alloy fabricated by expendable pattern shell casting with vacuum and low-pressure, gravity casting and lost foam casting
    Jiang, Wenming
    Fan, Zitian
    Liu, Dejun
    Liao, Defeng
    Dong, Xuanpu
    Zong, Xiaoming
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 560 : 396 - 403
12345