High temperature oxidation of Ti-48%Al-2%W intermetallics

被引：7
|
作者：
Shim, WS [1 ]
Lee, DB [1 ]
机构：
[1] Sungkyunkwan Univ, Ctr Adv Plasma Surface Technol, Suwon 440746, South Korea
来源：
METALS AND MATERIALS INTERNATIONAL | 2003年 / 9卷 / 05期
关键词：
TiAl; intermetallics; tungsten; oxidation;
D O I：
10.1007/BF03027153
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Powder metallurgically produced Ti-48%Al-2%W alloys were oxidized between 800 and 1050degreesC in air. The W-addition was quite effective in providing isothermal and cyclic oxidation resistance. The alloys oxidized parabolically up to 1050degreesC during isothermal oxidation, with small weight gains. The scales were adherent up to 900degreesC during cyclic oxidation. Oxide scales consisted primarily of an outer TiO2 layer, an intermediate Al2O3 layer, and an inner (TiO2+Al2O3) mixed layer. Tungsten was present below the intermediate Al2O3 layer, and also at the scale-matrix interface as W-enriched compounds. Below the oxide scale, a Ti3Al zone containing some W and O existed.
引用
收藏
页码：473 / 477
页数：5
相关论文
共 50 条
  • [31] The influence of Nb ion implantation upon oxidation behavior and hardness of a Ti-48 at.% Al alloy
    Zhang, YG
    Li, XY
    Chen, CQ
    Wang, W
    Ji, V
    SURFACE & COATINGS TECHNOLOGY, 1998, 100 (1-3): : 214 - 218
  • [32] Influence of Nb ion implantation upon oxidation behavior and hardness of a Ti-48 at.% Al alloy
    Zhang, Y.G.
    Li, X.Y.
    Chen, C.Q.
    Wang, W.
    Ji, Vincent
    Surface and Coatings Technology, 1998, 100-101 (1-3): : 214 - 218
  • [33] High temperature deformation of Ti-(46-48)Al-2W intermetallic compounds
    Kim, Hee Y.
    Sohn, Woong H.
    Hong, Soon H.
    Materials Science and Engineering A, 1998, A251 (1-2): : 216 - 225
  • [34] The influence of niobium ion implantation on the high temperature oxidation behaviour of Ti-48Al-2Cr
    Schmutzler, HJ
    Zheng, N
    Quadakkers, WJ
    Stroosnijder, MF
    SURFACE & COATINGS TECHNOLOGY, 1996, 83 (1-3): : 212 - 217
  • [35] The influence of niobium ion implantation on the high temperature oxidation behaviour of Ti-48Al-2Cr
    Institute for Advanced Materials, Ispra Site, Jt. Res. Ctr. of the Europ. Commn., 21020 Ispra , Italy
    不详
    Surf Coat Technol, 1-3 -3 pt 1 (212-217):
  • [36] Evolution of the microstructure and nanohardness of Ti-48 at.%Al alloy solidified under high pressure
    Wang, Hongwei
    Zhu, Dongdong
    Zou, Chunming
    Wei, Zunjie
    MATERIALS & DESIGN, 2012, 34 : 488 - 493
  • [37] The influence of aging on the microstructure and creep behaviour of a γ-Ti-48%A1-2%W intermetallic
    Seo, DY
    Beddoes, J
    Zhao, L
    Botton, GA
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 329 : 810 - 820
  • [38] Effects of annealing on room temperature ductility in Ti-48 at%Al alloys with various surface finishing conditions
    Motohashi, Y
    Murata, Y
    Suzuki, T
    Tsujimoto, T
    JOURNAL OF THE JAPAN INSTITUTE OF METALS, 2001, 65 (02) : 93 - 99
  • [39] Effect of lamellar structure on creep properties of Ti-48 at%Al alloy
    Nozaki, T
    Araki, K
    Takeyama, M
    Matsuo, T
    THERMEC '97 - INTERNATIONAL CONFERENCE ON THERMOMECHANICAL PROCESSING OF STEELS AND OTHER MATERIALS, VOLS I-II, 1997, : 1415 - 1422
  • [40] Influence of oxygen on the α→γ massive transformation in a Ti-48 at.% Al alloy
    Lefebvre, W
    Loiseau, A
    Thomas, M
    Menand, A
    PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 2002, 82 (11): : 2341 - 2355
12345