Long fatigue crack growth in Ti6Al4V produced by direct metal laser sintering

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00472762" target="_blank" >RIV/68081723:_____/16:00472762 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.proeng.2016.08.864" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2016.08.864</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.proeng.2016.08.864" target="_blank" >10.1016/j.proeng.2016.08.864</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Long fatigue crack growth in Ti6Al4V produced by direct metal laser sintering

Popis výsledku v původním jazyce

Results of an experimental determination of the propagation of long fatigue cracks in Ti6Al4V alloy prepared bynselective laser melting technology are presented. Direct metal laser sintering (DMLS) exploiting EOSINT M270nsystem was used for fabrication of compact tension specimens having different orientation in relation to the buildndirection.nIt has been found that there is no substantial influence of the build orientation and thus the microstructure exhibitingndirectionality on the growth of long fatigue cracks and on the crack propagation threshold, when optimal processnparameters and subsequent stress relieving heat treatments at 380 °C for 8 hours are chosen.nThe results were compared with literature data on the growth of long cracks in Ti6Al4V alloy manufactured bynDMLS technique and with data for conventionally produced forged material.nThe fatigue crack propagation path, fracture surfaces and fracture surface roughness were investigated. An analysisnof the specific microstructure produced by the direct laser sintering was performed and discussed in terms of thenmechanism of the propagation of long cracks.

Název v anglickém jazyce

Long fatigue crack growth in Ti6Al4V produced by direct metal laser sintering

Popis výsledku anglicky

Results of an experimental determination of the propagation of long fatigue cracks in Ti6Al4V alloy prepared bynselective laser melting technology are presented. Direct metal laser sintering (DMLS) exploiting EOSINT M270nsystem was used for fabrication of compact tension specimens having different orientation in relation to the buildndirection.nIt has been found that there is no substantial influence of the build orientation and thus the microstructure exhibitingndirectionality on the growth of long fatigue cracks and on the crack propagation threshold, when optimal processnparameters and subsequent stress relieving heat treatments at 380 °C for 8 hours are chosen.nThe results were compared with literature data on the growth of long cracks in Ti6Al4V alloy manufactured bynDMLS technique and with data for conventionally produced forged material.nThe fatigue crack propagation path, fracture surfaces and fracture surface roughness were investigated. An analysisnof the specific microstructure produced by the direct laser sintering was performed and discussed in terms of thenmechanism of the propagation of long cracks.

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

—

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 statě ve sborníku

XVIII INTERNATIONAL COLLOQUIUM ON MECHANICAL FATIGUE OF METALS (ICMFM XVIII)

ISBN

—

ISSN

1877-7058

e-ISSN

—

Počet stran výsledku

8

Strana od-do

69-76

Název nakladatele

Elsevier BV

Místo vydání

Amsterdam

Místo konání akce

Gijón

Datum konání akce

5. 9. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000387536900009