|About this Abstract
||2nd International Conference on Technological Innovations in Metals Engineering (TIME)
||Technological Innovations in Metals Engineering (TIME)
||Mechanical Properties of 3D Printed Ni-Mn-Ga Magnetic Shape Memory Alloy
||C. Virgil Solomon, Yash Trivedi, Jae Joong Ryu, Matt P. Caputo
|On-Site Speaker (Planned)
||C. Virgil Solomon
The brittleness of monocrystalline Ni-Mn-Ga, known for producing reversible strains up to 10% in the presence of the magnetic field, restricts machining operations and limits the use of the material for engineering applications. A possible alternative is to use near-net-shape parts, made of porous polycrystalline Ni-Mn-Ga alloys, and produced using binder jetting 3D printing of Ni50.9Mn30.7Ga18.4 powders. The purpose of this study is to investigate the mechanical properties of Ni-Mn-Ga 3D printed parts using nanoindentation techniques. The properties of interest in this research were hardness, elastic modulus, yield strength, and fracture toughness. For fracture toughness, both crack geometry and crack length were determined using light and electron microscopy investigations of the fractured indents. The paper will also report on the pseudoelastic behavior observed in 3D printed material during nanoindentation experiments.