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Title: Atomic defects and diffusion in metals

Abstract

The tracer self-diffusion data for fcc and refractory bcc metals are briefly reviewed with respect to (i) the available monovacancy formation and migration properties and (ii) the high-temperature diffusion enhancement above that expected for mass transport via atomic exchange with monovacancies. While the atomic-defect mechanism for low-temperature self-diffusion can be reliably attributed to monovacancies, the mechanisms responsible for high-temperature mass transport are not so easily defined at this time; both divacancies and interstitials must be seriously considered. Possibilities for improving our understanding in this area are discussed. 68 references, 7 figures.

Authors:
Publication Date:
Research Org.:
Argonne National Lab., IL (USA)
OSTI Identifier:
6338530
Report Number(s):
CONF-811150-17
ON: DE83007774
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Conference: Yamada conference on point defects and defect interactions in metals, Kyoto, Japan, 16 Nov 1981; Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; METALS; SELF-DIFFUSION; BCC LATTICES; EVALUATED DATA; FCC LATTICES; INTERSTITIALS; KINETICS; REVIEWS; VACANCIES; CRYSTAL DEFECTS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; DATA; DIFFUSION; DOCUMENT TYPES; ELEMENTS; INFORMATION; NUMERICAL DATA; POINT DEFECTS; 360104* - Metals & Alloys- Physical Properties

Citation Formats

Siegel, R.W. Atomic defects and diffusion in metals. United States: N. p., 1981. Web. doi:10.2172/6338530.
Siegel, R.W. Atomic defects and diffusion in metals. United States. doi:10.2172/6338530.
Siegel, R.W. Sun . "Atomic defects and diffusion in metals". United States. doi:10.2172/6338530. https://www.osti.gov/servlets/purl/6338530.
@article{osti_6338530,
title = {Atomic defects and diffusion in metals},
author = {Siegel, R.W.},
abstractNote = {The tracer self-diffusion data for fcc and refractory bcc metals are briefly reviewed with respect to (i) the available monovacancy formation and migration properties and (ii) the high-temperature diffusion enhancement above that expected for mass transport via atomic exchange with monovacancies. While the atomic-defect mechanism for low-temperature self-diffusion can be reliably attributed to monovacancies, the mechanisms responsible for high-temperature mass transport are not so easily defined at this time; both divacancies and interstitials must be seriously considered. Possibilities for improving our understanding in this area are discussed. 68 references, 7 figures.},
doi = {10.2172/6338530},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {11}
}