Microstructure and mechanical properties of Hf and Ho doped NiAl-Cr(Mo) near eutectic alloy prepared by suction casting

被引：52
作者：
Sheng, Liyuan [1 ,2 ,3 ]
Zhang, Wei [3 ]
Guo, Jianting [3 ]
Ye, Hengqiang [3 ]
机构：
[1] Ind Technol Inst, Guangzhou, Guangdong, Peoples R China
[2] Chinese Acad Sci, Guangzhou 511458, Guangdong, Peoples R China
[3] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2009年 / 60卷 / 11期
关键词：
NiAl-based eutectic alloy; Suction casting; Microstructure; Mechanical properties; TEMPERATURE COMPRESSIVE PROPERTIES; MAGNETIC-FIELD TREATMENT; ROD-PLATE TRANSITION; SITE SUBSTITUTION; ELEMENTS; FAULTS; CR;
D O I：
10.1016/j.matchar.2009.06.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure and mechanical properties of 0.15 at.% Hf and 0.2 at.% Ho doped Ni-33Al-28Cr-6Mo near eutectic alloys prepared by conventionally casting and suction casting were investigated. The results reveal that the addition of Hf and Ho results in the formation of HfAlNi(2) and HoNi(2)Al(3) phases respectively along the NiAl and Cr(Mo) phase interface in intercellular regions. Compared with the conventional-cast alloy, the suction casting optimizes the microstructure of the alloy further, which can be characterized by the refined NiAl/Cr(Mo) eutectic lamellar, high proportion of eutectic cell, and fine and homogeneously distributed HfAlNi(2) and HoNi(2)Al(3) phases. in addition, the compression tests show that the suction-cast alloy has better mechanical properties, which can be attributed to the fine microstructure and uniform distribution of the HfAlNi(2) and HoNi(2)Al(3) phases. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码：1311 / 1316
页数：6
相关论文
共 50 条
  • [21] 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
  • [22] Microstructure and mechanical properties of NiAl(Ti)-Cr(Mo) eutectic alloy
    Xiao Xuan
    Guo Jianting
    Yu Haipeng
    ACTA METALLURGICA SINICA, 2006, 42 (10) : 1031 - 1035
  • [23] Optimization of the Microstructure and Mechanical Properties of a Laves Phase-Strengthened Hypoeutectic NiAl/Cr(Mo,W) Alloy by Suction Casting
    Sheng, L. Y.
    Du, B. N.
    Zan, S. P.
    Lai, C.
    Jiao, J. K.
    Gao, Y. B.
    Xi, T. F.
    STRENGTH OF MATERIALS, 2018, 50 (03) : 504 - 514
  • [24] 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
  • [25] Microstructure and mechanical property of directionally solidified NiAl-Cr(Mo)-(Hf, Dy) alloy at different withdrawal rates
    Wang, Lei
    Shen, Jun
    Shang, Zhao
    Zhang, Jianfei
    Du, Yujun
    Fu, Hengzhi
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 607 : 113 - 121
  • [26] Investigations on the microstructure and room temperature fracture toughness of directionally solidified NiAl-Cr(Mo) eutectic alloy
    Shang, Zhao
    Shen, Jun
    Wang, Lei
    Du, Yujun
    Xiong, Yilong
    Fu, Hengzhi
    INTERMETALLICS, 2015, 57 : 25 - 33
  • [27] Influence of high temperature heat treatment on microstructure and microhardness of (DS)NiAl-Cr(Mo)-Hf eutectic alloy
    Xu, CM
    Guo, JT
    Fu, HZ
    ACTA METALLURGICA SINICA, 2004, 40 (01) : 57 - 61
  • [28] Microstructure and Mechanical Properties Determined in Compressive Tests of Quasi-Rapidly Solidified NiAl-Cr(Mo)-Hf Eutectic Alloy After Hot Isostatic Pressure and High Temperature Treatments
    Sheng, L. Y.
    Nan, L.
    Zhang, W.
    Guo, J. T.
    Ye, H. Q.
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2010, 19 (05) : 732 - 736
  • [29] Simultaneous improvement of strength and ductility in NiAl-Cr(Mo)-Hf near eutectic alloy by small amount of Ti alloying addition
    Li Hu-Tian
    Gou Jian-ting
    Ye Heng-qiang
    Wang Qiang
    He Ji-Cheng
    MATERIALS LETTERS, 2008, 62 (01) : 61 - 64
  • [30] Microstructure investigation of NiAl-Cr(Mo) interface in a directionally solidified NiAl-Cr(Mo) eutectic alloyed with refractory metal
    Chen, YX
    Cui, CY
    Guo, JT
    Li, DX
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 373 (1-2): : 279 - 285
12345