Research Information System
Makina Tasarım ve Imalat Dergisi, vol.1, no.19, pp.1-9, 2021 (Peer-Reviewed Journal)
The aim of this study is to investigate the effect of
building direction on mechanical properties of the parts
fabricated using Ti6Al4V alloy powders by electron
beam melting method. Three specimens in three different
directions (X, Y and Z) were produced and to see the
effect of surface roughness on mechanical properties,
one of the samples in each direction were machined by
lathe. The results of tension tests on samples produced in
three directions according to ASTM E8 standard
revealed that yield and tensile strength of the samples
built in Z direction are higher than the related properties
of the samples built in X and Y directions. Yield and
tensile strength of the samples built in each of the
direction comes out to be higher than the same properties
of the wrought or cast Ti6Al4V parts. Specimens
displayed a mixed ductile-brittle fracture characteristic
and the microstructure is mainly Widmanstatten / basket
weave and α lamellar microstructure was observed inside
the prior β grains.