Diffusion of Al and Al-Substituting Elements in Ni3Al at Elevated Temperatures

被引：16

作者：

Moniruzzaman, Md ^{[1
]}

Fukaya, Hiroaki ^{[1
]}

Murata, Yoshinori ^{[1
]}

Tanaka, Katsushi ^{[2
]}

Inui, Haruyuki ^{[2
]}

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Mat Phys & Energy Engn, Nagoya, Aichi 4648603, Japan

[2] Kyoto Univ, Grad Sch Engn, Dept Mat Sci & Engn, Kyoto 6068501, Japan

来源：

MATERIALS TRANSACTIONS | 2012年 / 53卷 / 12期

基金：

日本学术振兴会;

关键词：

nickel-based superalloys; nickel aluminide; diffusion couple; interdiffusion coefficient; activation enthalpy; NI-BASE SUPERALLOY; PHASE; INTERDIFFUSION; SYSTEM; TITANIUM; PLATINUM; RE; RU;

D O I：

10.2320/matertrans.M2012218

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Diffusion of Ti, V, Nb, Mo and Ta in Ni3Al phase was investigated at different temperatures using Ni-Al-X (X = Ti, V, Nb, Mo, Ta) pseudo-binary diffusion couples. The magnitude of the interdiffusion coefficients was in the descending order of V, Mo, Ti, Nb and Ta at all experimental temperatures ranging from 1423 to 1573 K. Diffusion data obtained in this study was compared with those of Re and Ru available in the literature as Re and Ru are recently being added in modern Ni-based superalloys. Diffusion retardation occurred for Ti, V, Nb, Mo and Ta as compared to Ru, and this can be explained by the anti-site diffusion mechanism. The high activation energy for anti-site formation is required for beta-site (Al-site) elements, such as Ti, V, Nb, Mo and Ta. However, as Ru can diffuse either by alpha- (Ni-site) or beta-site preferences without creating local disorder, Ru diffusion is not retarded by the anti-site diffusion mechanism.

引用

页码：2111 / 2118

页数：8

共 31 条

[1]

Adachi H., 2005, SPRINGER SERIES MAT, P25

[2]

Bakker H., 1983, DIMETA 82 DIFFUSION

[3]

Cahn R. W., 1987, MATER RES SOC S P, V57, P385

[4] Development of a diffusion mobility database for Ni-base superalloys [J].

Campbell, CE ;

Boettinger, WJ ;

Kattner, UR .

ACTA MATERIALIA, 2002, 50 (04) :775-792

[5] Interdiffusion in ternary Ni3Al/Ni3Al-X diffusion couples with X = Cr, Fe, Nb and Ti [J].

Cermak, J ;

Gazda, A ;

Rothova, V .

INTERMETALLICS, 2003, 11 (09) :939-946

[6]

DARKEN LS, 1948, T AM I MIN MET ENG, V175, P184

[7] Solute diffusion of Al-substituting elements in Ni3Al and the diffusion mechanism of the minority component [J].

Divinski, SV ;

Frank, S ;

Sodervall, U ;

Herzig, C .

ACTA MATERIALIA, 1998, 46 (12) :4369-4380

[8] RHENIUM ADDITIONS TO A NI-BASE SUPERALLOY - EFFECTS ON MICROSTRUCTURE [J].

GIAMEI, AF ;

ANTON, DL .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1985, 16 (11) :1997-2005

[9] AN ANALYTICAL METHOD OF CALCULATING VARIABLE DIFFUSION COEFFICIENTS [J].

HALL, LD .

JOURNAL OF CHEMICAL PHYSICS, 1953, 21 (01) :87-89

[10] Diffusion of refractory elements in Ni-Al-X (X:Re,W) ternary alloys [J].

Hattori, M ;

Goto, N ;

Murata, Y ;

Koyama, T ;

Morinaga, M .

MATERIALS TRANSACTIONS, 2005, 46 (02) :163-166

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