Mechanical Properties of Ti-6Al-4V from Additive Manufacturing Process

This project report delves into the additive manufacturing (AM) process of Ti-6Al-4V titanium alloy. The study focuses on the creation of components through layer-by-layer deposition, utilizing CAD software and 3D printing techniques. The methodology involves melting and layering metal powder using a SismaMysint 3D printer, followed by testing of the specimen to analyze the patterns of α-β titanium. Results indicate that grains align parallel to the line of force, with a linear stress-strain relationship observed. The investigation explores various mechanical properties, including failures, fracture toughness, impact resistance, hardness, and fatigue, all influenced by heat dynamics. The report concludes that AM enhances Ti-6Al-4V properties, increasing its strength-to-weight ratio and corrosion resistance, making it suitable for aerospace and biomedical applications. The report includes references to related research and highlights the benefits of the AM process in improving material characteristics. The project also considers the effects of process-induced defects like porosity and the influence of post-processing treatments.

Title:
Concept of Additive
Manufacturing in Titanium
Alloy (TI-6AL-4V)

Introduction
Prototyping: Building of
components by principle of layer by
layer deposition.
Involves use of CAD software

MethodologyMethodology
3D Printing3D Printing:Creation of deposition:Creation of deposition
through melting and layering of metalthrough melting and layering of metal
powder.powder.
Achieved by the use ofAchieved by the use of SismaMysint 3D
printer

Testing of specimenTesting of specimen
Testing involved checking theTesting involved checking the patterns of
α-β titanium .
samples of Ti-6Al-4V produced by the use
of 3D testing are as shown.

ResultsResults
Grains became parallel to the line ofGrains became parallel to the line of
force.force.
Linear relationship of stress and strainLinear relationship of stress and strain
obtained as per the table below.obtained as per the table below.Tensile Stress Modulus Tensile Strain
1 1137 29.02 12.12
2 1141 31.34 12.32
3 1102 28.54 12.45
4 452 27.08 5.6

Results----Results----
 The plotted graph indicated a linear graphThe plotted graph indicated a linear graph
just before failure as shown below.just before failure as shown below.

DiscussionDiscussion
The study investigated on the mechanicalThe study investigated on the mechanical
properties ofproperties of Ti-6Al-4V from AM process.
The properties testedThe properties tested included:
 failures,
fracture toughness,
 impact resistance hardness
 finally test for fatigue.
 Above properties are affected by dynamism
of heat effect

ConclusionConclusion
properties of Ti-6Al-4V have been
enhanced by the process AM
The product has high strength to weigh
ratio
Also increased resistance to corrosion
Perfect for use in aerospace and
biometric

ReferencesReferences
 [8]Xie, K.Y., Wang, Y., Zhao, Y., Chang, L., Wang, G.,
Chen, Z., Cao, Y., Liao, X., Lavernia, E.J., Valiev, R.Z. and
Sarrafpour, B., 2013. Nanocrystalline β-Ti alloy with high
hardness, low Young's modulus and excellent in vitro
biocompatibility for biomedical applications. Materials
Science and Engineering: C, 33(6), pp.3530-3536.
 [9]Yilmazer, H., Niinomi, M., Nakai, M., Cho, K., Hieda, J.,
Todaka, Y. and Miyazaki, T., 2013. Mechanical properties of
a medical β-type titanium alloy with specific microstructural
evolution through high-pressure torsion. Materials Science
and Engineering: C, 33(5), pp.2499-2507.
 .