Abstract
ABSTRACTDiffusion of the Al-substituting elements Ga, Ge, Ti and Nb has been investigated in Ni3Al single crystals by the secondary ion mass spectrometry (SIMS). A model for the minority component diffusion by anti-structure defects has been suggested for the Ll2 structure. It involves both nearest neighbor jumps of the solute atoms on the Ni sublattice as anti-structure atoms and the formation of so-called anti-structure bridges which correspond to jumps between different sublattices. The model under consideration was shown to agree with the experimental data on the Al-substituting solute diffusion (X = Ga, Ge, Ti, Nb) in Ni3Al and it allows to explain also the observed ratio of the diffusivities DNi/DX, which may be higher and/or lower than unity in dependence on the solute and temperature.
References
22
Referenced
2
10.1002/pssb.2221910105
10.1080/01418619808221218
10.1016/0956-7151(94)90062-0
10.1016/0001-6160(84)90057-9
10.4028/www.scientific.net/DDF.143-147.245
10.1103/PhysRevB.56.3032
10.4028/www.scientific.net/DDF.143-147.257
{'key': 'S1946427400292373_ref010', 'volume-title': 'Diffusion Processes in Ordered Alloys', 'author': 'Larikov', 'year': '1981'}
/ Diffusion Processes in Ordered Alloys by Larikov (1981)10.1002/pssa.2211520205
10.1016/S0022-3697(96)00129-1
10.4028/www.scientific.net/DDF.143-147.321
10.1002/pssa.2210070228
10.1016/0001-6160(88)90279-9
10.1007/BF02651757
10.1016/S0966-9795(96)00080-5
10.4028/www.scientific.net/DDF.83.55
10.1016/0966-9795(93)90035-T
{'key': 'S1946427400292373_ref021', 'first-page': '7377', 'volume': '35', 'author': 'Divinski', 'year': '1997', 'journal-title': 'J. Phys.: Condens. Matter'}
/ J. Phys.: Condens. Matter by Divinski (1997)10.1002/pssb.2221950105
10.4028/www.scientific.net/DDF.95-98.859
10.4028/www.scientific.net/DDF.143-147.209
- 22. Belova I. V. and Murch G. E. , Intermetallics, (in press).
Dates
Type | When |
---|---|
Created | 14 years, 5 months ago (April 5, 2011, 7:22 a.m.) |
Deposited | 4 years, 6 months ago (Feb. 24, 2021, 4:33 p.m.) |
Indexed | 3 years, 5 months ago (March 31, 2022, 1:47 p.m.) |
Issued | 27 years, 8 months ago (Jan. 1, 1998) |
Published | 27 years, 8 months ago (Jan. 1, 1998) |
Published Online | 14 years, 6 months ago (Feb. 10, 2011) |
Published Print | 27 years, 8 months ago (Jan. 1, 1998) |
@article{Frank_1998, title={Mechanisms of Al Self- and Al-Substituting Solute Diffusion in Ni3Al}, volume={527}, ISSN={1946-4274}, url={http://dx.doi.org/10.1557/proc-527-171}, DOI={10.1557/proc-527-171}, journal={MRS Proceedings}, publisher={Springer Science and Business Media LLC}, author={Frank, St. and Divinski, S. and Herzig, Chr.}, year={1998} }