Influence of as-built surface on fatigue strength and notch sensitivity of Ti6Al4V alloy produced by DMLS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F18%3A00509702" target="_blank" >RIV/68081723:_____/18:00509702 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/matecconf/201816502002" target="_blank" >http://dx.doi.org/10.1051/matecconf/201816502002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/matecconf/201816502002" target="_blank" >10.1051/matecconf/201816502002</a>

Result language
angličtina
Original language name
Influence of as-built surface on fatigue strength and notch sensitivity of Ti6Al4V alloy produced by DMLS
Original language description
Direct Metal Laser Sintering (DMLS) is one of the additive manufacturing technologies involving a metal powder bed and a laser source to obtain components of complex geometry. The fatigue life of an as-built DMLS part is negatively influenced by the rough surface compared to a machined surface. Since most DMLS components are expected to have also stress concentrations, here the combined effect on fatigue of a as-built surface and a geometrical notch in as-built DMLS Ti6Al4V was investigated using a new test methodology. Miniature specimens having three different directions with respect to build direction were fabricated and tested determining the directional fatigue notch sensitivity of as-built DMLS Ti6Al4V Optical inspection of notch surface quality and roughness measurements demonstrated a ranking of the directional notches that inversely correlated to the measured fatigue performance. The link among the curved surface orientation, the peculiar layer-wise additive manufacturing fabrication and the fatigue notch sensitivity is clarified.
Czech name
—
Czech description
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Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
12TH INTERNATIONAL FATIGUE CONGRESS (FATIGUE 2018)
ISBN
—
ISSN
2261-236X
e-ISSN
—
Number of pages
6
Pages from-to
02002
Publisher name
E D P SCIENCES
Place of publication
CEDEX
Event location
Poitiers Futuroscope
Event date
May 27, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000478990600004

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