Physicomechanical properties of Ti-Ta-based surface alloys synthesized on the NiTi shape memory alloy

International Scientific and Technical Youth Conference "Perspective Materials of Constructional and Medical Purpose"

材料科学;医药卫生

D'Yachenko, F.A.^1 ; Meisner, S.N.^1 ; Yakovlev, E.V.^2

Institute of Strength Physics and Materials Science, SBRAS, Tomsk, Russia^1

Institute of High-Current Electronics, SBRAS, Tomsk, Russia^2

关键词: Experimental investigations;    Gradient change;    Low energy high current pulsed electron beam (LEHCPEB);    NiTi shape memory alloys;    Physico mechanical parameters;    Physicomechanical properties;    Pulsed electron beams;    Surface alloys;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/511/1/012025/pdf
DOI  :  10.1088/1757-899X/511/1/012025

来源: IOP

【 摘 要 】

This paper presents a research data on investigation of physicomechanical properties of Ti-Ta-based surface alloys, synthesized on the NiTi-substrate. The Ti-Ta-based surface alloys were formed in a single vacuum cycle, that comprises preliminary low-energy high-current pulsed electron beam (LEHCPEB), Ti-Ta film deposition by magnetron sputtering, and pulsed electron beam melting of the system "Ti-Ta-based surface alloy/NiTi-substrate". Experimental investigation and analysis of physicomechanical properties of Ti-Ta-based surface alloys on the NiTi-substrate were performed by method of nanoindentation. Our data suggest that the electron beam synthesis of Ti-Ta-based surface alloys, different in thickness and composition on the NiTi-substrate, leads to a gradient change of physicomechanical parameters. Modification of the surface of NiTi alloy changed the functional (pseudoelastic) properties by no more than 10%.