Simultaneous improvement of strength and ductility in NiAl-Cr(Mo)-Hf near eutectic alloy by small amount of Ti alloying addition

被引：16
|
作者：
Li Hu-Tian [1 ,2 ]
Gou Jian-ting [2 ]
Ye Heng-qiang [2 ]
Wang Qiang [1 ]
He Ji-Cheng [1 ]
机构：
[1] Northeastern Univ, Minist Educ, Key Lab Electromagnet Proc Mat, Shenyang 110004, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
来源：
MATERIALS LETTERS | 2008年 / 62卷 / 01期
基金：
中国国家自然科学基金;
关键词：
microstructure; (Ti; Hf) solid solution; mechanical properties; Heusler phase; intermetallic alloys and compounds; NiAl;
D O I：
10.1016/j.matlet.2007.04.069
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of Ti alloying addition on the microstructure and room temperature compression deformation behavior of a NiAl-Cr(Mo)-Hf near eutectic alloy were investigated by SEM, TEM, EDX and compression test. The results showed that compared with base alloy, the compressive fracture strain and 0.2% yield strength of the Ti-containing alloy were enhanced simultaneously. Disordered (Ti,Hf) solid solution phase together with the blocky Heusler phase Ni2Al(Ti,Hf) precipitation presented at eutectic cell boundaries is responsible for the enhancement in ductility due to the better deformation ability of (Ti,Hf) solid solution phase. The improvement in strength depends mainly on the solid solution strengthening in NiAl matrix by large amount of Ti due to its larger solid solubility relative to Hf in NiAl. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：61 / 64
页数：4
相关论文
共 50 条
  • [31] Effect of nb on the microstructure and mechanical properties of cast NiAl-Cr(Mo) eutectic alloy
    Huai, KW
    Guo, JT
    Ren, ZR
    Gao, Q
    Yang, R
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2006, 22 (02) : 164 - 168
  • [32] Microstructure and Mechanical Property of the Directionally Solidified NiAl-Cr(Mo)-Hf/Ho Alloy
    Han, Ping
    Qi, Yihui
    Meng, Juan
    Guo, Jianting
    ADVANCES IN MATERIALS AND MATERIALS PROCESSING, PTS 1-3, 2013, 652-654 : 1084 - 1087
  • [33] Strong Magnetic-Field Treatment Strengthens NiAl-Cr(Mo)-Hf Alloy
    Gopal Rao
    MRS Bulletin, 2005, 30 : 262 - 264
  • [34] Strong magnetic-field treatment strengthens NiAl-Cr(Mo)-Hf alloy
    Rao, G
    MRS BULLETIN, 2005, 30 (04) : 262 - +
  • [35] Microstructure and mechanical properties of NiAl-Cr(Mo)/Hf alloy prepared by injection casting
    Huai, K. W.
    Guo, J. T.
    Du, X. H.
    Yang, R.
    MATERIALS & DESIGN, 2007, 28 (06) : 1940 - 1944
  • [36] Effect of Nd Addition on the Microstructure and Cyclic Oxidation Behavior of NiAl-Cr(Mo) Eutectic Alloys
    Atas, Mehmet Sahin
    Yildirim, Mehmet
    INTERNATIONAL JOURNAL OF METALCASTING, 2024, 18 (02) : 1192 - 1203
  • [37] The effect of strong magnetic field treatment on microstructure and room temperature compressive properties of NiAl-Cr(Mo)-Hf eutectic alloy
    Sheng, L. Y.
    Guo, J. T.
    Zhou, L. Z.
    Ye, H. Q.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 500 (1-2): : 238 - 243
  • [38] Effect of high magnetic field treatment on the microstructure and mechanical property of NiAl-Cr(Mo)-0.2Hf eutectic alloy
    Sheng Liyuan
    Guo Jianting
    Tian Yuxin
    Zhou Lanzhang
    Ye Hengqiang
    ACTA METALLURGICA SINICA, 2008, 44 (05) : 524 - 528
  • [39] Effect of high magnetic field treatment on the microstructure and mechanical property of NiAl-Cr(Mo)-0.2Hf eutectic alloy
    Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
    Jinshu Xuebao/Acta Metallurgica Sinica, 2008, 44 (05): : 524 - 528
  • [40] Significant Improvement of Mechanical Properties in NiAl-Cr(Mo)/Hf Alloy by Suction Casting and Subsequent Hot Isostatic Pressing
    J. T. Guo
    K. W. Huai
    H. T. Li
    Metallurgical and Materials Transactions A, 2007, 38 : 35 - 43
12345