Basic Mechanisms Leading to Fatigue Failure of Structural Materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00465486" target="_blank" >RIV/68081723:_____/16:00465486 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/16:PU117813

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s12666-015-0753-z" target="_blank" >http://dx.doi.org/10.1007/s12666-015-0753-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12666-015-0753-z" target="_blank" >10.1007/s12666-015-0753-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Basic Mechanisms Leading to Fatigue Failure of Structural Materials

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Basic Mechanisms Leading to Fatigue Failure of Structural Materials

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-23652S" target="_blank" >GA13-23652S: Materiály pro vysokoteplotní aplikace - mechanismy zpevnění a poškození</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Indian Institute of Metals. Transactions

ISSN

0972-2815

e-ISSN

—

Svazek periodika

69

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

IN - Indická republika

Počet stran výsledku

6

Strana od-do

289-294

Kód UT WoS článku

000368032700019

EID výsledku v databázi Scopus

2-s2.0-84954386841