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Influence of lattice defects on grain boundary self-diffusion in nickel

SYSNO ASEP	0354423
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Influence of lattice defects on grain boundary self-diffusion in nickel
Author(s)	Rothová, Věra (UFM-A)_RID Buršík, Jiří (UFM-A)_{RID, ORCID} Svoboda, Milan (UFM-A)_{RID, ORCID}
Number of authors	3
Source Title	METAL 2010. Conference proceedings. - Ostrava : Tanger, s.r.o, 2010 - ISBN 978-80-87294-15-4
Pages	čl. zv22
Number of pages	6 s.
Publication form	CD-ROM - CD-ROM
Action	Metal 2010. International Conference on Metallurgy and Materials /19./
Event date	18.05.2010-20.05.2010
VEvent location	Rožnov pod Radhoštěm
Country	CZ - Czech Republic
Event type	EUR
Language	eng - English
Country	CZ - Czech Republic
Keywords	grain boundary diffusion ; nickel ; lattice defects
Subject RIV	BJ - Thermodynamics
CEZ	AV0Z20410507 - UFM-A (2005-2011)
Annotation	An extremely wide spectrum of experimental results on the grain boundary (GB) self-diffusivities in nickel was published in the literature. Currently, our previously published results show a pronounced dependence of diffusivities on both purity and thermo-mechanical history. A possible reason for the large scatter of published experimental data could be a contribution arising from some crystal lattice defects other than GBs. Thus, in the present work, the impact of the selected lattice defects on diffusion processes, grain growth and twin production has been investigated. Hence, the cast and cold-rolled nickel specimens of purity grades from 99.5% to over 99.99% were selected to study the influence of the material purity and fabrication on microstructure and its evolution during thermal treatment and thereby on the mass transport properties.
Workplace	Institute of Physics of Materials
Contact	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Year of Publishing	2011

Number of the records: 1