Effect of Grain Boundary Segregation on Mechanical Properties of P-Doped Fe-Si Base Alloys
Result description
The grain boundary segregation in two Fe-Si base alloys with the different bulk phosphorus contents was investigated. The phosphorus grain boundary concentrations determined with the use of Auger electron spectroscopy were related to the microstructure,fracture mode, and mechanical properties of the alloys. Transgranular cleavage was found to be the dominant fracture mode of the samples tested by impact at room temperature. The correlations between the phosphorus grain boundary concentration, the portiion of intergranular fracture, and the dynamic fracture toughness were presented, which fulfil the theoretical expectation. Two possibilities were proposed to explain a discrepancy in the temperature dependence of the phosphorus grain boundary concentration for the alloy with the higher bulk phosphorus content.
Keywords
Fe-Si alloysphosphorus grain boundary segregationmechanical propertiesAuger electron spectroscopytransmission electron microscopymechanical testing
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Effect of Grain Boundary Segregation on Mechanical Properties of P-Doped Fe-Si Base Alloys
Original language description
The grain boundary segregation in two Fe-Si base alloys with the different bulk phosphorus contents was investigated. The phosphorus grain boundary concentrations determined with the use of Auger electron spectroscopy were related to the microstructure,fracture mode, and mechanical properties of the alloys. Transgranular cleavage was found to be the dominant fracture mode of the samples tested by impact at room temperature. The correlations between the phosphorus grain boundary concentration, the portiion of intergranular fracture, and the dynamic fracture toughness were presented, which fulfil the theoretical expectation. Two possibilities were proposed to explain a discrepancy in the temperature dependence of the phosphorus grain boundary concentration for the alloy with the higher bulk phosphorus content.
Czech name
Vliv segregace na hranicích zrn na mechanické vlastnosti slitin Fe-Si dopovaných fosforem
Czech description
Vliv segregace na hranicích zrn na mechanické vlastnosti slitin Fe-Si dopovaných fosforem
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
GA106/02/0253: Analysis of fracture along segregated grain boundaries in bicrystals and polycrystals
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Science Forum
ISSN
0255-5476
e-ISSN
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Volume of the periodical
482
Issue of the periodical within the volume
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Country of publishing house
CH - SWITZERLAND
Number of pages
4
Pages from-to
191-194
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
JL - Fatigue and fracture mechanics
Year of implementation
2005