Chemical diffusion in Ir3Nb

被引：11
作者：
Uchida, M
Numakura, H
Yamabe-Mitarai, Y
Bannai, E
机构：
[1] Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Kyoto 6068501, Japan
[2] Kyoto Univ, Sch Phys Engn, Sakyo Ku, Kyoto 6068501, Japan
[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
来源：
SCRIPTA MATERIALIA | 2005年 / 52卷 / 01期
关键词：
electron probe microanalysis; intermetallic compounds; bulk diffusion; substitutional diffusion;
D O I：
10.1016/j.scriptamat.2004.09.006
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Chemical diffusion coefficient in the L1(2) ordered compound Ir3Nb has been measured by single-phase interdiffusion experiments in the temperature range from 1750 to 1950degreesC. The diffusion coefficient is described by the pre-exponential factor of 10(-5.3+/-1.1) m(2)s(-1) and the activation energy of 4.83 +/- 0.44eV, (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：11 / 15
页数：5
相关论文
共 16 条
[1]   Test of the validity of the Darken/Manning relation for diffusion in ordered alloys taking the L12 structure [J].
Belova, IV ;
Murch, GE .
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1998, 78 (05) :1085-1092
[2]   CORRELATIONS FOR DIFFUSION CONSTANTS [J].
BROWN, AM ;
ASHBY, MF .
ACTA METALLURGICA, 1980, 28 (08) :1085-1101
[3]  
DARKEN LS, 1948, T AM I MIN MET ENG, V175, P184
[4]  
Goldstein JI, 1992, SCANNING ELECT MICRO
[5]   Microstructure and deformation behavior of Ir-Nb two-phase refractory superalloys for various Nb content [J].
Gu, YF ;
Yamabe-Mitarai, Y ;
Ro, Y ;
Harada, H .
SCRIPTA MATERIALIA, 1999, 40 (11) :1313-1319
[6]   Single-phase interdiffusion in Ni3Al [J].
Ikeda, T ;
Almazouzi, A ;
Numakura, H ;
Koiwa, M ;
Sprengel, W ;
Nakajima, H .
ACTA MATERIALIA, 1998, 46 (15) :5369-5376
[7]  
Kushida A, 2001, MATER TRANS, V42, P514, DOI 10.2320/matertrans.42.514
[8]   DIFFUSION AND KIRKENDALL SHIFT IN BINARY ALLOYS [J].
MANNING, JR .
ACTA METALLURGICA, 1967, 15 (05) :817-&
[9]  
MEHRER H, 1990, LANDOLTBORNSTEIN NEW, V26
[10]   Diffusion in Ni3Al, Ni3Ga and Ni3Ge [J].
Numakura, H ;
Ikeda, T ;
Nakajima, H ;
Koiwa, M .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 312 (1-2) :109-117
12