Detail publikace

Basic Mechanisms Leading to Fatigue Failure of Structural Materials

POLÁK, J. PETRÁŠ, R. MAZÁNOVÁ, V.

Originální název

Basic Mechanisms Leading to Fatigue Failure of Structural Materials

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Damage mechanism; Fatigue crack initiation; Austenitic steel; Oxide cracking

Autoři

POLÁK, J.; PETRÁŠ, R.; MAZÁNOVÁ, V.

Vydáno

1. 3. 2016

Nakladatel

Springer India

ISSN

0972-2815

Periodikum

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS

Ročník

69

Číslo

2

Stát

Indická republika

Strany od

289

Strany do

294

Strany počet

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"
}