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Published in: Metallurgical and Materials Transactions A 6/2011

01-06-2011

Effect of Large Shear Deformations on the Fracture Behavior of a Fully Pearlitic Steel

Authors: A. Hohenwarter, A. Taylor, R. Stock, R. Pippan

Published in: Metallurgical and Materials Transactions A | Issue 6/2011

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Abstract

High-pressure torsion (HPT) has been used for investigating the influence of predeformation on the fracture toughness of a fully pearlitic rail steel. The use of HPT enables one to investigate changes in fracture toughness as a function of predeformation over a wide range of strain while simultaneously studying the influence of the crack plane orientation on the fracture toughness. With increasing prestrain, besides a strong increase in hardness, a pronounced anisotropy in the fracture toughness was found. Both the increase in hardness and the anisotropic fracture behavior can be attributed to the shear deformation process leading to an anisotropic composite structure on the nanometer scale.

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Metadata
Title
Effect of Large Shear Deformations on the Fracture Behavior of a Fully Pearlitic Steel
Authors
A. Hohenwarter
A. Taylor
R. Stock
R. Pippan
Publication date
01-06-2011
Publisher
Springer US
Published in
Metallurgical and Materials Transactions A / Issue 6/2011
Print ISSN: 1073-5623
Electronic ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-010-0541-7

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