Strength analysis of Ti6Al4V titanium alloy produced by the use of additive manufacturing method under static load conditions

Abstract

The technology of 3D printing from metal powder is gaining popularity due to the possibility of producing structural elements of any geometry, which making by the use of the methods applicated so far is difficult or impossible. One of the most commonly used additive manufacturing methods is Direct Metal Laser Sintering (DMLS). The most commonly used material in DMLS technology is titanium alloy Ti6Al4V. Ti6Al4V titanium alloy belongs to α + β two-phase alloys and is applicated in many industrial areas, among others in the field of medicine (dental implants), aerospace (production of selected engine components), etc. The aim of the paper is to present the mechanical properties tests results of titanium alloy Ti6Al4V carried out on the samples: manufactured by the use of additive manufacturing method DMLS and made of drawn bar by turning process. The scope includes conducting tests related to determining the mechanical properties of the alloy, determining hardness and presenting the macrostructure before and after the samples failure. Keywords: DMLS method, 3D printing, Ti6Al4V titanium alloy, Additive manufacturing, HV5 hardness, Micro- and macrostructure