Open AccessDistribution of thermophysical and mechanical properties of titanium nickelide in the welding zone
Author(s) -
V. V. Burkhovetskiy,
A O Kamaev,
A Yu Kiselev,
Dmitry Kurushkin,
V. M. Khanaev,
E. A. Khlopkov,
N. V. Chernyavskaya,
B. E. Shkuratov,
Eugeny Ostropiko,
Yu. N. V’yunenko
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 - 10.1088/1742-6596/2052/1/012005
Subject(s) - materials science , welding , indentation hardness , gas tungsten arc welding , ultimate tensile strength , residual stress , heat affected zone , composite material , titanium alloy , optical microscope , metallurgy , scanning electron microscope , temperature gradient , alloy , microstructure , arc welding , physics , quantum mechanics
The paper analyzes the behavior of the deformation characteristics of welded joints made of TiNi alloy with a shape memory effect. Comparison of the level of tensile strength of welded samples made by the TIG method in an Ar and He atmosphere was carried out using a Instron 5985 universal machine. The study of the material structure in the weld zone and the heat-affected zone was carried out on longitudinal sections using a JSM-6490LV electron microscope. To estimate the mechanical parameters PMT-3 microhardness tester was used. The calorimetric parameters of the welded samples were obtained using a differential scanning calorimeters METTLER TOLEDO 822e and TA Instruments Q20. To analyze the gradient properties at the weld zone and the heat-affected zone, the temperature fields were calculated using the thermal conductivity equation included in the model of the residual stress mechanism.