Journal
MATERIALS LETTERS
Volume 354, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2023.135406
Keywords
Double-wire plasma arc additive; manufacturing; Shape memory alloys; Microstructure; Mechanical property; Shape memory effect
Ask authors/readers for more resources
In this study, a Ni49Ti51 shape memory alloy was successfully prepared using the double-wire arc additive manufacturing process. The microstructure of the alloy consists mainly of NiTi (B19 '), NiTi (B2), and NiTi2 phases. The alloy demonstrates significantly increased compressive strength and fracture strain compared to the plasma arc powder melting process, and exhibits a superior shape memory effect with a recovery rate of up to 88%.
In this study, a Ni49Ti51 shape memory alloy was innovatively prepared using the double-wire arc additive manufacturing process with plasma arc as the heat source and pure Ni and Ti welding wires as the raw materials. The microstructure and properties were systematically studied. The results indicate that the microstructure of the prepared Ni49Ti51 shape memory alloy mainly consists of NiTi (B19 '), NiTi (B2), and NiTi2 phases. The ultimate compressive strength and fracture strain are 2241.3 MPa and 31.7 %, respectively. These values have increased by 39.7 % and 252.2 %, respectively, compared to the plasma arc powder melting process. Moreover, the shape memory effect is superior, exhibiting a shape memory recovery rate of up to 88 %.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available