|About this Abstract
||Materials Science & Technology 2019
||Advanced Manufacturing, Processing, Characterization and Modeling of Functional Materials
||On the Effect of the Build Direction in Mechanical Fatigue Life of the SLM Fabricated NiTi
||Parisa Bayati, Ahmadreza Jahadakbar, Mohammadreza Nematollahi, Mohammad J. Mahtabi, Mohammad Elahinia
|On-Site Speaker (Planned)
Selective Laser Melting (SLM) is an Additive Manufacturing (AM) method in which complex geometries can be fabricated directly from the CAD file. NiTi is a shape memory alloy with interesting characteristics such as shape memory effect, superelasticity, corrosion resistance, and biocompatibility. SLM technique has been able to eliminate major limitations in fabrication of Nickel-Titanium (NiTi). AM NiTi could be a great candidate in biomedical, bioengineering, aerospace and automotive industry. Due to the nature of AM, mechanical fatigue failure of the AM fabricated parts is a major challenge. On the other hand, NiTi components most of the times undergo repetitive loading conditions. In this study as a first step in analyzing the fatigue performance of SLM NiTi, the effect of build direction on the structural fatigue of NiTi samples has been investigated. To this end, dog bone samples in different directions were fabricated via SLM and evaluated in strain-controlled fatigue tests.