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"
}