Surface profile evolution and fatigue crack initiation in Sanicro 25 steel at room temperature

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00465502" target="_blank" >RIV/68081723:_____/16:00465502 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/16:PU121111

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.msea.2016.02.016" target="_blank" >http://dx.doi.org/10.1016/j.msea.2016.02.016</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msea.2016.02.016" target="_blank" >10.1016/j.msea.2016.02.016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Surface profile evolution and fatigue crack initiation in Sanicro 25 steel at room temperature

Popis výsledku v původním jazyce

Evolution of the surface profile in room temperature cyclic loading has been studied in high alloy austenitic Sanicro 25 stainless steel. The localization of the cyclic plastic strain into persistent slip bands in the volume of the material leads to the formation of the specific surface relief in the form of persistent slip markings (PSMs) consisting of extrusions and intrusions. Evolution of the shape of PSMs was studied during interruption of cycling using SEM and FIB techniques. Three-dimensional information about the PSMs profiles was obtained. The profiles of both extrusions and intrusions and their evolution during cyclic loading were assessed. Generally extrusions grow, intrusions deepen and fatigue cracks initiate from the tip of the deepest intrusions. The experimental observations were compared and discussed in relation to existing physical models of surface relief formation and fatigue crack initiation.

Název v anglickém jazyce

Surface profile evolution and fatigue crack initiation in Sanicro 25 steel at room temperature

Popis výsledku anglicky

Evolution of the surface profile in room temperature cyclic loading has been studied in high alloy austenitic Sanicro 25 stainless steel. The localization of the cyclic plastic strain into persistent slip bands in the volume of the material leads to the formation of the specific surface relief in the form of persistent slip markings (PSMs) consisting of extrusions and intrusions. Evolution of the shape of PSMs was studied during interruption of cycling using SEM and FIB techniques. Three-dimensional information about the PSMs profiles was obtained. The profiles of both extrusions and intrusions and their evolution during cyclic loading were assessed. Generally extrusions grow, intrusions deepen and fatigue cracks initiate from the tip of the deepest intrusions. The experimental observations were compared and discussed in relation to existing physical models of surface relief formation and fatigue crack initiation.

Druh

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

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Materials Science and Engineering A-Structural materials

ISSN

0921-5093

e-ISSN

—

Svazek periodika

658

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

221-228

Kód UT WoS článku

000372560800025

EID výsledku v databázi Scopus

2-s2.0-84957068456