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

http://link.springer.com/article/10.1007%2Fs12666-015-0753-z

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"
}