Microstructure and properties of in situ nanometric Al2O3 reinforced α-Fe(Al)-Fe3Al-based composites

被引：14
|
作者：
Li, Jia [1 ]
Kwong, Fung-luen [2 ]
Shi, Riu-xia [1 ]
Ng, Dickon H. L. [2 ]
Yin, Yan-sheng [3 ]
机构：
[1] Univ Jinan, Dept Mat Sci & Engn, Jinan, Peoples R China
[2] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
[3] China Ocean Univ, Sch Mat Sci & Engn, Qingdao, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 526卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Iron aluminides composite; Particulate-reinforced; Microstructure; Mechanical testing; IRON;
D O I：
10.1016/j.msea.2009.07.014
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The alpha phase Fe(Al)-Fe3Al-based composites reinforced with 4-9 vol.% alpha-Al2O3 dispersions were fabricated by hot-pressing sintering. Nanometer-sized alpha-Al2O3 dispersed homogeneously in the submicron alpha-Fe(Al) and Fe3Al matrix, with a 20% lattice-mismatch presented between alpha-Al2O3 and alpha-Fe(Al). Higher fracture toughness (39 MPa M-1/2) and bending strength (1260 MPa) were obtained for composites containing both intragranular and intergranular Al2O3 grains. The combination of fine grain strengthening with dispersion strengthening can account for the improvement of mechanical properties. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：50 / 55
页数：6
相关论文
共 50 条
  • [1] Fabrication and microstructure of in situ toughened Al2O3/Fe3Al
    Gong, HY
    Yin, YS
    Wang, X
    Liu, YC
    MATERIALS RESEARCH BULLETIN, 2004, 39 (4-5) : 513 - 521
  • [2] Fabrication and wear properties of Fe3Al-based composites
    Itoi, T.
    Mineta, S.
    Kimura, H.
    Yoshimi, K.
    Hirohashi, M.
    INTERMETALLICS, 2010, 18 (11) : 2169 - 2177
  • [3] Investigation of Microstructure and Property of Fe3AL/Al2O3 Composites
    Jiang, Tao
    ADVANCES IN COMPOSITES, PTS 1 AND 2, 2011, 150-151 : 1409 - 1412
  • [4] Microwave reflection characteristics of the Fe/Al2O3 and Fe3Al/Al2O3 composites
    Wei, Jianqiang
    Wang, Jianbo
    Qiao, Liang
    Wang, Tao
    Li, Fashen
    MATERIALS SCIENCE AND ENGINEERING APPLICATIONS, PTS 1-3, 2011, 160-162 : 984 - 989
  • [5] Tribological properties of in situ Fe3Al-20 wt% Al2O3 composites
    Bai, Yaping
    Xing, Jiandong
    Liu, Zhen
    Wu, Haoliang
    Ma, Shengqiang
    Huang, Qian
    Gao, Yimin
    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY, 2013, 227 (J1) : 67 - 78
  • [6] Microstructure of in-situ Al2O3/Al composites
    Ji, Y
    Zhong, TX
    Wang, Y
    Tang, JH
    Xu, XD
    JOURNAL OF TRACE AND MICROPROBE TECHNIQUES, 1997, 15 (04): : 489 - 492
  • [7] Preparation and microstructure of Fe3Al/Al2O3 composites reinforced by surface modified carbon fiber
    Jia J.
    Liu C.
    Liu D.
    Gao C.
    Ji G.
    Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica, 2019, 36 (09): : 2155 - 2162
  • [8] Microstructure and mechanical properties of Al2O3/TiAl in situ composites doped with Fe2O3
    Xiang, Liuyi
    Wang, Fen
    Zhu, Jianfeng
    Wang, Xiaofeng
    ADVANCED MATERIAL SCIENCE AND TECHNOLOGY, PTS 1 AND 2, 2011, 675-677 : 597 - 600
  • [9] Fabrication and Microstructure of the Fe3Al/Al2O3 Composites by Pressureless Sintering
    Jiang, Tao
    Pan, Kewei
    TESTING AND EVALUATION OF INORGANIC MATERIALS I, 2011, 177 : 411 - 414
  • [10] Study on in situ Al based composites reinforced by Al2O3 particles
    Huang, ZJ
    Hu, DY
    Yang, B
    Zhang, JS
    ACTA METALLURGICA SINICA, 2002, 38 (06) : 568 - 574
12345