Publication detail

Effect of Grain Boundary Segregation on Mechanical Properties of P-Doped Fe-Si Base Alloys

JANOVEC, J. JENKO, M. POKLUDA, J. VLACH, B. LEJČEK, P. SVOBODA, M. ŠANDERA, P.

Czech title

Vliv segregace na hranicích zrn na mechanické vlastnosti slitin Fe-Si dopovaných fosforem

English title

Effect of Grain Boundary Segregation on Mechanical Properties of P-Doped Fe-Si Base Alloys

Type

journal article - other

Language

en

Original abstract

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 portion 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 abstract

Vliv segregace na hranicích zrn na mechanické vlastnosti slitin Fe-Si dopovaných fosforem

English abstract

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 portion 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 in English

Fe-Si alloys, phosphorus grain boundary segregation, mechanical properties, Auger electron spectroscopy, transmission electron microscopy, mechanical testing.

RIV year

2005

Released

01.01.2005

ISSN

0255-5476

Journal

Materials Science Forum

Volume

482

Pages from–to

191–194

Pages count

4

BIBTEX


@article{BUT45568,
  author="Jozef {Janovec} and Monika {Jenko} and Jaroslav {Pokluda} and Bohumil {Vlach} and Pavel {Lejček} and Milan {Svoboda} and Pavel {Šandera},
  title="Effect of Grain Boundary Segregation on Mechanical Properties of P-Doped Fe-Si Base Alloys",
  journal="Materials Science Forum",
  year="2005",
  volume="482",
  month="January",
  pages="191--194",
  issn="0255-5476"
}