Fatigue crack growth in plasma-sprayed refractory materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00501094" target="_blank" >RIV/61389021:_____/19:00501094 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/19:00331778

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs11666-018-0790-3" target="_blank" >https://link.springer.com/article/10.1007%2Fs11666-018-0790-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11666-018-0790-3" target="_blank" >10.1007/s11666-018-0790-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fatigue crack growth in plasma-sprayed refractory materials

Popis výsledku v původním jazyce

Fatigue crack growth in self-standing plasma-sprayed tungsten and molybdenum beams with artificially introduced notches subjected to pure bending was studied. Fatigue crack length was measured using the differential compliance method, and fatigue crack growth rate was established as a function of stress intensity factor. Crack opening under compressive stress was detected. Fractographic analysis revealed the respective crack formation mechanisms. At low crack propagation rates, the fatigue crack growth takes place by intergranular splat fracture accompanied by splat decohesion in Mo coating, eventually by void interconnection in W coating. Frequently, the crack deflected from the notch plane being attracted to stress concentrators formed by voids or favorably oriented splat interfaces. At higher values of the stress intensity factor, the intergranular cracking of splats becomes more common and the crack propagated more perpendicularly to the specimen surface.

Název v anglickém jazyce

Fatigue crack growth in plasma-sprayed refractory materials

Popis výsledku anglicky

Fatigue crack growth in self-standing plasma-sprayed tungsten and molybdenum beams with artificially introduced notches subjected to pure bending was studied. Fatigue crack length was measured using the differential compliance method, and fatigue crack growth rate was established as a function of stress intensity factor. Crack opening under compressive stress was detected. Fractographic analysis revealed the respective crack formation mechanisms. At low crack propagation rates, the fatigue crack growth takes place by intergranular splat fracture accompanied by splat decohesion in Mo coating, eventually by void interconnection in W coating. Frequently, the crack deflected from the notch plane being attracted to stress concentrators formed by voids or favorably oriented splat interfaces. At higher values of the stress intensity factor, the intergranular cracking of splats becomes more common and the crack propagated more perpendicularly to the specimen surface.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/GB14-36566G" target="_blank" >GB14-36566G: Multidisciplinární výzkumné centrum moderních materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Spray Technology

ISSN

1059-9630

e-ISSN

—

Svazek periodika

28

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

87-97

Kód UT WoS článku

000456599500009

EID výsledku v databázi Scopus

2-s2.0-85056667777