Stage I fatigue cracking in MAR-M 247 superalloy at elevated temperatures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00465127" target="_blank" >RIV/68081723:_____/16:00465127 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.prostr.2016.06.378" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2016.06.378</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2016.06.378" target="_blank" >10.1016/j.prostr.2016.06.378</a>

Result language

angličtina

Original language name

Stage I fatigue cracking in MAR-M 247 superalloy at elevated temperatures

Original language description

Nickel base superalloys exhibit fatigue fracture behavior with features of brittle-like cleavage cracking under high cycle fatigue loading at temperatures up to approximately 800 °C. This specific fracture behavior was already documented in several studies, but a possible mechanism of fatigue crack propagation under this mode has not been made completely clear yet. The aim of this paper is to put more light on the phenomenon by using advanced electron microscopy techniques like electron back-scattered diffraction (EBSD) and focused ion beam (FIB) sectioning. Fractured specimens after high cycle fatigue tests were thoroughly examined with the aim to localize the fatigue crack initiation sites and accompanying features of the fatigue crack propagation. Several specimens were cross-sectioned in order to characterize active slip systems, cyclic plastic deformation localization and fatigue crack propagation. Dislocation structures were studied by transmission electron microscopy (TEM).

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20306 - Audio engineering, reliability analysis

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Article name in the collection

21st European Conference on Fracture

ISBN

—

ISSN

2452-3216

e-ISSN

—

Number of pages

8

Pages from-to

"3018–3025"

Publisher name

Elsevier

Place of publication

Amsterdam

Event location

Catania

Event date

Jun 20, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000387976803013