Mechanical performance of 3D- printed Ti-6Al-4V
thesisposted on 2022-03-28, 16:53 authored by Yuefeng Yu
Titanium alloys have a wide range of applications in industry, especially in the aerospace industry and biomechanical applications. Ti-6Al-4V is an α-β phase titanium alloy with high strength, low weight ratio and high corrosive resistance. The traditional manufacturing of such an alloy takes plenty of time and money to achieve required features when compared to the 3D-printed method. 3D printing is famous for the efficiency as well as the geometry shape it can create, but there are lots of settings when manufacturing it, such as the thickness of the layer and the moving speed of the nozzle. In this paper, samples with 60μm layer thickness and 1029mm/s scanning speed using the selective laser melting (SLM) method will be studies, and focus on the harness mapping along the building direction before and after heat treatment as well as the microstructure. The connection between the dimensions of the samples and their related mechanical features will be discussed as well.