Microstructures and properties of extruded TiAl-Nb-W alloys

被引：0
|
作者：
Sikka, VK [1 ]
Carneiro, T [1 ]
Loria, EA [1 ]
机构：
[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
来源：
GAMMA TITANIUM ALUMINIDES 2003 | 2003年
关键词：
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Three Ti-46Al alloys containing 4 to 8 at. % Nb were produced by nonconsumable-arc melting into 25-mm-diam ingots. The ingots were hot-extruded at 1350degreesC (similar to35 to 50degreesC higher than Talpha) in a steel can to a reduction ratio of 10:1. The extruded bars were machined into tensile bars and tested at RT, 500, and 800degreesC in the as-extruded condition. Optical microstructures were examined in the as-extruded condition and after stress-relieving and annealing treatments at 1000degreesC/2 h and 1315degreesC/20 min. Tensile data were compared with data reported in literature on alloys of similar compositions and processing conditions. The three alloys are promising possibilities in that they show superior tensile properties in this comparison which is emphasized by the leanest TiAl-46Al-4Nb-1W-0.12B alloys, when tested in the as-extruded condition.
引用
收藏
页码：219 / 223
页数：5
相关论文
共 50 条
  • [21] Homogenization treatment of high Nb containing TiAl alloys with as-cast and as-forged microstructures
    Xu Zhengfang
    Xu Xiangjun
    Lin Junpin
    Zhang Yong
    Wang Yanli
    Lin Zhi
    Chen Guoliang
    RARE METALS, 2008, 27 (02) : 181 - 186
  • [22] Homogenization treatment of high Nb containing TiAl alloys with as-cast and as-forged microstructures
    XU Zhengfang XU Xiangjun LIN Junpin ZHANG Yong WANG Yanli LIN Zhi CHEN Guoliang State Key Laboratory for Advanced Metals and Materials
    RareMetals, 2008, (02) : 181 - 186
  • [23] Microstructures and mechanical properties of Nb-Ti-C alloys
    Jiao, Huisheng
    Jones, Ian P.
    Aindow, Mark
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 485 (1-2): : 359 - 366
  • [24] Monotonic and cyclic properties of TiAl alloys doped with Nb, Mo and C
    Chlupova, A.
    Obrtlik, K.
    Beran, P.
    Heczko, M.
    Polak, J.
    Kruml, T.
    XVII INTERNATIONAL COLLOQUIUM ON MECHANICAL FATIGUE OF METALS (ICMFM17), 2014, 74 : 405 - 408
  • [25] Microstructures and tensile properties of as-extruded Mg-Sn binary alloys
    Chen Dong
    Ren Yu-ping
    Guo Yun
    Pei Wen-li
    Zhao Hong-da
    Qin Gao-wu
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2010, 20 (07) : 1321 - 1325
  • [26] Influence of deformation parameters on microstructures of TiAl alloys
    Garbacz, H
    Mizera, J
    Wyrzykowski, JW
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1997, 64 (1-3) : 127 - 132
  • [27] The effect of Zn on microstructures and properties of extruded Mg-Gd-Y alloys
    Li Hui-zhong
    Liu Hong-ting
    Wang Hai-jun
    Guo Fei-fei
    Liang Xiao-peng
    Liu Chu-ming
    MECHANICAL, MATERIALS AND MANUFACTURING ENGINEERING, PTS 1-3, 2011, 66-68 : 289 - 294
  • [28] Microstructures and tensile properties of as-extruded Mg-Sn binary alloys
    陈冬
    任玉平
    郭运
    裴文利
    赵宏达
    秦高梧
    TransactionsofNonferrousMetalsSocietyofChina, 2010, 20 (07) : 1321 - 1325
  • [29] Effects of heat treatments on microstructures of TiAl alloys
    Wen Yu
    Jianxin Zhou
    Yajun Yin
    Zhixin Tu
    Xin Feng
    Hai Nan
    Junpin Lin
    Xianfei Ding
    International Journal of Minerals,Metallurgy and Materials, 2022, (06) : 1225 - 1230
  • [30] REFINEMENT OF MICROSTRUCTURES AND IMPROVEMENT OF MECHANICAL-PROPERTIES IN INTERMETALLIC TIAL ALLOYS BY RHEOCASTING
    ICHIKAWA, K
    KINOSHITA, Y
    JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1995, 59 (05) : 571 - 577
12345