Open AccessStudy of mechanical characteristics by nanoindentation of an ion-implanted Ti-Ni shape memory alloy
Author(s) -
O. Yu. Usanova,
V. V. Stolyarov,
A. V. Ryazantseva,
B. Sh El’-Bekai
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1889/2/022092
Subject(s) - nanoindentation , materials science , ion implantation , alloy , ion , irradiation , diamond , elastic modulus , shape memory alloy , elasticity (physics) , modulus , metallurgy , composite material , chemistry , physics , organic chemistry , nuclear physics
This article examines the effect of ion implantation on the change in the mechanical characteristics of the Ti-Ni shape memory alloy. A comparison of the characteristics was carried out in the coarse-grained and nanostructured state on the initial alloy samples and on the samples after ion implantation. The implantation mode was chosen as the most optimal on the basis of previous studies. Irradiation mode parameters: dose - 2.3·10 17 ion/cm 2 , energy - 40 keV, ions -nickel, temperature - did not exceed 200 °C. The characteristics were studied by the nanoindentation method on a NanoHardnessTester, (CSM Instr.) At a load of 2 mN using a Berkovich-type diamond indenter. According to the data of nanoindentation by the Oliver-Pharr method, the value of hardness and Young’s modulus of elasticity were determined. Research results show that ion implantation leads to an increase in hardness.