A study of Re and Al diffusion in Ni

Q. Zeng; S. W. Ma; Y. R. Zheng; S. Z. Liu; T. Zhai

doi:10.1016/j.jallcom.2009.02.115

A study of Re and Al diffusion in Ni

Q. Zeng, S. W. Ma, Y. R. Zheng, S. Z. Liu, T. Zhai

Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

Alloy couples of Ni-1(wt.%)Re/Ni-4.8(wt.%)Re and Ni-x%Re/Ni-x%Re-5.3(wt.%)Al with x being 1, 2 and 3 were annealed at different temperatures to investigate the diffusion behavior of Re in Ni and the effect of Re on the diffusion behavior of Al in Ni. The composition profiles of these alloys were measured by electron probe microanalysis, and used to calculate the diffusion coefficients and activity energies of Re and Al. The results showed that the diffusion activation energy of Re in Ni was 412 kJ/mol and that of Al increased slightly from 230 kJ/mol to 256 kJ/mol with Re content being varied from 1% to 3% in Ni matrix.

Original language	English
Pages (from-to)	987-990
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	480
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2009.02.115
State	Published - Jul 8 2009

Keywords

Activation energy
Diffusion behavior
Nickel-based superalloy
Rhenium

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2009.02.115

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title = "A study of Re and Al diffusion in Ni",

abstract = "Alloy couples of Ni-1(wt.%)Re/Ni-4.8(wt.%)Re and Ni-x%Re/Ni-x%Re-5.3(wt.%)Al with x being 1, 2 and 3 were annealed at different temperatures to investigate the diffusion behavior of Re in Ni and the effect of Re on the diffusion behavior of Al in Ni. The composition profiles of these alloys were measured by electron probe microanalysis, and used to calculate the diffusion coefficients and activity energies of Re and Al. The results showed that the diffusion activation energy of Re in Ni was 412 kJ/mol and that of Al increased slightly from 230 kJ/mol to 256 kJ/mol with Re content being varied from 1% to 3% in Ni matrix.",

keywords = "Activation energy, Diffusion behavior, Nickel-based superalloy, Rhenium",

author = "Q. Zeng and Ma, {S. W.} and Zheng, {Y. R.} and Liu, {S. Z.} and T. Zhai",

year = "2009",

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doi = "10.1016/j.jallcom.2009.02.115",

language = "English",

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TY - JOUR

T1 - A study of Re and Al diffusion in Ni

AU - Zeng, Q.

AU - Ma, S. W.

AU - Zheng, Y. R.

AU - Liu, S. Z.

AU - Zhai, T.

PY - 2009/7/8

Y1 - 2009/7/8

N2 - Alloy couples of Ni-1(wt.%)Re/Ni-4.8(wt.%)Re and Ni-x%Re/Ni-x%Re-5.3(wt.%)Al with x being 1, 2 and 3 were annealed at different temperatures to investigate the diffusion behavior of Re in Ni and the effect of Re on the diffusion behavior of Al in Ni. The composition profiles of these alloys were measured by electron probe microanalysis, and used to calculate the diffusion coefficients and activity energies of Re and Al. The results showed that the diffusion activation energy of Re in Ni was 412 kJ/mol and that of Al increased slightly from 230 kJ/mol to 256 kJ/mol with Re content being varied from 1% to 3% in Ni matrix.

AB - Alloy couples of Ni-1(wt.%)Re/Ni-4.8(wt.%)Re and Ni-x%Re/Ni-x%Re-5.3(wt.%)Al with x being 1, 2 and 3 were annealed at different temperatures to investigate the diffusion behavior of Re in Ni and the effect of Re on the diffusion behavior of Al in Ni. The composition profiles of these alloys were measured by electron probe microanalysis, and used to calculate the diffusion coefficients and activity energies of Re and Al. The results showed that the diffusion activation energy of Re in Ni was 412 kJ/mol and that of Al increased slightly from 230 kJ/mol to 256 kJ/mol with Re content being varied from 1% to 3% in Ni matrix.

KW - Activation energy

KW - Diffusion behavior

KW - Nickel-based superalloy

KW - Rhenium

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DO - 10.1016/j.jallcom.2009.02.115

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VL - 480

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EP - 990

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 2

ER -

A study of Re and Al diffusion in Ni

Abstract

Keywords

ASJC Scopus subject areas

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