Počet záznamů: 1
Long fatigue crack growth in Ti6Al4V produced by direct metal laser sintering
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SYSNO ASEP 0472762 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Long fatigue crack growth in Ti6Al4V produced by direct metal laser sintering Tvůrce(i) Konečná, R. (SK)
Kunz, Ludvík (UFM-A) RID, ORCID
Bača, A. (SK)
Nicoletto, G. (IT)Celkový počet autorů 4 Zdroj.dok. XVIII INTERNATIONAL COLLOQUIUM ON MECHANICAL FATIGUE OF METALS (ICMFM XVIII). - Amsterdam : Elsevier BV, 2016 / Pariente IF. ; Belzunce FJ. ; Canteli AF. ; Correia JAFO. ; DeJesus AMP. - ISSN 1877-7058 Rozsah stran s. 69-76 Poč.str. 8 s. Forma vydání Tištěná - P Akce ICMFM 2016 - International Colloquium on Mechanical Fatigue of Metals /18./ Datum konání 05.09.2016 - 07.09.2016 Místo konání Gijón Země ES - Španělsko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova DMLS ; Ti6Al4V ; microstructure ; fatigue crack growth Vědní obor RIV JL - Únava materiálu a lomová mechanika Institucionální podpora UFM-A - RVO:68081723 UT WOS 000387536900009 EID SCOPUS 84992562848 DOI 10.1016/j.proeng.2016.08.864 Anotace Results of an experimental determination of the propagation of long fatigue cracks in Ti6Al4V alloy prepared by
selective laser melting technology are presented. Direct metal laser sintering (DMLS) exploiting EOSINT M270
system was used for fabrication of compact tension specimens having different orientation in relation to the build
direction.
It has been found that there is no substantial influence of the build orientation and thus the microstructure exhibiting
directionality on the growth of long fatigue cracks and on the crack propagation threshold, when optimal process
parameters and subsequent stress relieving heat treatments at 380 °C for 8 hours are chosen.
The results were compared with literature data on the growth of long cracks in Ti6Al4V alloy manufactured by
DMLS technique and with data for conventionally produced forged material.
The fatigue crack propagation path, fracture surfaces and fracture surface roughness were investigated. An analysis
of the specific microstructure produced by the direct laser sintering was performed and discussed in terms of the
mechanism of the propagation of long cracks.Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2017
Počet záznamů: 1