ON gamma AND gamma prime PHASES COMPOSITION IN Ni-BASE SUPERALLOYS AFTER HIGH-TEMPERATURE EXPOSURE.

被引:0
|
作者
Magrini, Maurizio
Badan, Brando
Ramous, Emilio
机构
关键词
D O I
暂无
中图分类号
TF [冶金工业]; TG113 [金相学(金属的组织与性能)];
学科分类号
0806 ;
摘要
The chemistry and volume fraction of gamma prime phase in IN-100, UD-520, and UD-710 superalloys after high-temperature exposure in service have been examined. In the three alloys after exposure the gamma composition remains nearly constant and the concentration of (Al plus Ti) in gamma prime phase increases, approaching the theoretical value of 25%. The results suggest that Cr, Mo, and W aim to occupy different sites in the gamma prime lattice in the three examined alloys.
引用
收藏
页码:314 / 316
相关论文
共 50 条
  • [31] Effects of Ru on the high-temperature phase stability of Ni-base single-crystal superalloys
    A. C. Yeh
    S. Tin
    Metallurgical and Materials Transactions A, 2006, 37 : 2621 - 2631
  • [32] GRAIN-BOUNDARY PRECIPITATION STRENGTHENING DUE TO GAMMA' PHASE IN HIGH-TEMPERATURE CREEP OF A NI-BASE SUPERALLOY
    ELBATAHGY, AM
    MATSUO, T
    KIKUCHI, M
    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1990, 76 (05): : 767 - 774
  • [33] X-ray diffractometric measurement of lattice misfit between γ and γ prime phases of Ni-base superalloys at high temperatures
    Yokokawa, Tadaharu
    Harada, Hiroshi
    Ohno, Katsumi
    Yosetsu Gakkai Shi/Journal of the Japan Welding Society, 1998, 67 (02):
  • [34] EFFECTS OF THE AMOUNT OF GAMMA' PHASE ON THE CREEP STRENGTH OF THE DISPERSION STRENGTHENED NI-BASE SUPERALLOYS
    KUSUNOKI, K
    KAWASAKI, Y
    NAKAZAWA, S
    YAMAZAKI, M
    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1989, 75 (09): : 1588 - 1595
  • [35] SAGBO mechanism on high temperature cracking behavior of Ni-base superalloys
    Carpenter, W
    Kang, BSJ
    Chang, KM
    SUPERALLOYS 718, 625, 706 AND VARIOUS DERIVATIVES, 1996, : 679 - 688
  • [36] High temperature fatigue of Ni-base superalloys: Microstructural and environmental effects
    Pineau, A
    ENGINEERING AGAINST FATIGUE, 1999, : 557 - 565
  • [37] High temperature oxidation of single-crystal Ni-base superalloys
    Bouhanek, K
    Oquab, D
    Pieraggi, B
    HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 4, PTS 1 AND 2, 1997, 251-2 : 33 - 40
  • [38] HRTEM analysis of the high-temperature phases of the newly developed high-temperature Ni-base superalloy VDM 780 Premium
    Ghica, C.
    Solis, C.
    Munke, J.
    Stark, A.
    Gehrmann, B.
    Bergner, M.
    Roesler, J.
    Gilles, R.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 814
  • [39] High-temperature strength of Ni-base superalloy coatings
    Okazaki, M.
    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2001, 2 (02) : 357 - 366
  • [40] EFFECTS OF CARBON AND BORON CONTENTS ON HIGH-TEMPERATURE TENSILE PROPERTIES OF P/M NI-BASE SUPERALLOYS
    KOIZUMI, Y
    TOMIZUKA, I
    HARADA, H
    MAETA, T
    NAKAZAWA, S
    YAMAZAKI, M
    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1990, 76 (03): : 454 - 461