Open AccessStructural characteristics of NiTi alloys after thermal treatment
Author(s) -
Jaromír Drápala,
Monika Losertová,
Michal Štencek,
Kateřina Konečná,
Dalibor Matýsek,
M. A. Sevostyanov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/726/1/012019
Subject(s) - nickel titanium , indentation hardness , materials science , microstructure , alloy , metallurgy , optical microscope , thermal treatment , thermal , titanium alloy , shape memory alloy , composite material , scanning electron microscope , thermodynamics , physics
The study of the effect of thermal treatment conditions on NiTi alloy used in biomedicine was carried out. The experimental samples of NiTi alloy with 55.8 wt% Ni were subjected to the heat treatment. The thermal regimes consisted of aging treatment at 300, 350 and 400 °C for 30 minutes followed by air cooling. The microstructures before and after the heat treatment were observed by optical microscopy. The study was completed by the microhardness measurement and XRD analysis. The obtained results show that the aging temperatures led to microstructural and microhardness changes for the investigated alloy.