Publication detail

Phosphorus-Induced Quasi-Brittle Fracture of Fe-2.3% V-0.12% P Alloy

HORNÍKOVÁ, J. ŠANDERA, P. POKLUDA, J. LEJČEK, P.

Czech title

Fosforem indukovaný kvazi-křehký lom slitiny Fe-2.3% V-0.12% P

English title

Phosphorus-Induced Quasi-Brittle Fracture of Fe-2.3% V-0.12% P Alloy

Type

conference paper

Language

en

Original abstract

Fracture experiments on a polycrystalline Fe-2.3 mass V – 0.12 mass% P alloy at room temperature have shown that the fracture mode was directly related to the grain boundary segregation of phosphorus. As expected, the ratio of intergranular brittle fracture increased with increasing grain boundary concentration of phosphorus for all annealing temperatures. Comparison of the experimental data with theoretical simulations revealed that the intergranular fracture spreads along grain boundaries containing more than 17 at% of segregated phosphorus. The mean value of the surface energy of segregated intercrystalline facets was found to be of 19 J/m2. This value is comparable with the surface energy of brittle cleavage in ferrite at very low temperatures as well as with that determined for the Fe-2.3 mass% Si – 0.12 mass% P alloy

Czech abstract

Fracture experiments on a polycrystalline Fe-2.3 mass V – 0.12 mass% P alloy at room temperature have shown that the fracture mode was directly related to the grain boundary segregation of phosphorus. As expected, the ratio of intergranular brittle fracture increased with increasing grain boundary concentration of phosphorus for all annealing temperatures. Comparison of the experimental data with theoretical simulations revealed that the intergranular fracture spreads along grain boundaries containing more than 17 at% of segregated phosphorus. The mean value of the surface energy of segregated intercrystalline facets was found to be of 19 J/m2. This value is comparable with the surface energy of brittle cleavage in ferrite at very low temperatures as well as with that determined for the Fe-2.3 mass% Si – 0.12 mass% P alloy

English abstract

Fracture experiments on a polycrystalline Fe-2.3 mass V – 0.12 mass% P alloy at room temperature have shown that the fracture mode was directly related to the grain boundary segregation of phosphorus. As expected, the ratio of intergranular brittle fracture increased with increasing grain boundary concentration of phosphorus for all annealing temperatures. Comparison of the experimental data with theoretical simulations revealed that the intergranular fracture spreads along grain boundaries containing more than 17 at% of segregated phosphorus. The mean value of the surface energy of segregated intercrystalline facets was found to be of 19 J/m2. This value is comparable with the surface energy of brittle cleavage in ferrite at very low temperatures as well as with that determined for the Fe-2.3 mass% Si – 0.12 mass% P alloy

Keywords in Czech

slityny železa, hranice zrn, segregace na hranicích, interkrystalický lom, lomová houževnatost

Keywords in English

iron alloys, grain boundary, interface segregation, intergranular fracture, fracture toughness

RIV year

2009

Released

07.11.2009

Publisher

IMR SAS

Location

Košice

ISBN

978-80-968543-8-7

Book

Fractography

Edition number

1

Pages from–to

9–16

Pages count

8

BIBTEX


@inproceedings{BUT30038,
  author="Jana {Horníková} and Pavel {Šandera} and Jaroslav {Pokluda} and Pavel {Lejček},
  title="Phosphorus-Induced Quasi-Brittle Fracture of Fe-2.3% V-0.12% P Alloy",
  booktitle="Fractography",
  year="2009",
  month="November",
  pages="9--16",
  publisher="IMR SAS",
  address="Košice",
  isbn="978-80-968543-8-7"
}