Publication detail
Basic Mechanisms Leading to Fatigue Failure of Structural Materials
POLÁK, J. PETRÁŠ, R. MAZÁNOVÁ, V.
Original Title
Basic Mechanisms Leading to Fatigue Failure of Structural Materials
Type
journal article in Web of Science
Language
English
Original Abstract
General features of the damage evolution in cyclic loading of structural materials are summarized. The attention is paid to the comparison of the damage mechanisms in materials that are used for service both at room and at elevated temperatures, namely austenitic stainless steel Sanicro 25. Principal mechanisms leading to fatigue fracture at room and at elevated temperature are documented. While cyclic slip localization is a decisive process in the initiation of fatigue cracks at room temperature, the localized oxidation plays an important role in isothermal high temperature cyclic loading. Specific mechanisms of the early fatigue damage in thermomechanical cyclic loading are studied. The in-phase thermomechanical loading leads to the intergranular crack initiation due to preferred grain boundary oxidation and intergranular crack growth. The out-of-phase thermomechanical loading results in oxide cracking and localized oxidation of the metal in the area of cracked oxides and to transgranular crack growth. The damage mechanisms can explain differences in fatigue life under various loading and temperature conditions.
Keywords
Damage mechanism; Fatigue crack initiation; Austenitic steel; Oxide cracking
Authors
POLÁK, J.; PETRÁŠ, R.; MAZÁNOVÁ, V.
Released
1. 3. 2016
Publisher
Springer India
ISBN
0972-2815
Periodical
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
Year of study
69
Number
2
State
Republic of India
Pages from
289
Pages to
294
Pages count
6
URL
BibTex
@article{BUT121630,
author="Jaroslav {Polák} and Roman {Petráš} and Veronika {Mazánová}",
title="Basic Mechanisms Leading to Fatigue Failure of Structural Materials",
journal="TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS",
year="2016",
volume="69",
number="2",
pages="289--294",
doi="10.1007/s12666-015-0753-z",
issn="0972-2815",
url="http://link.springer.com/article/10.1007%2Fs12666-015-0753-z"
}