Coupled Thermomechanical Response Measurement of Deformation of Nickel-Based Superalloys Using Full-Field Digital Image Correlation and Infrared Thermography

Abstract

The paper is devoted to highlighting the potential application of the quantitative imaging technique through results associated with work hardening, strain rate and heat generated during elastic and plastic deformation. The aim of the research presented in this article is to determine the relationship between deformation in the uniaxial tensile test of samples made of 1-mm-thick nickel-based superalloys and their change in temperature during deformation. The relationship between yield stress and the Taylor–Quinney coefficient and their change with the strain rate were determined. The research material was 1-mm-thick sheets of three grades of Inconel alloys: 625 HX and 718. The Aramis (GOM GmbH, a company of the ZEISS Group) measurement system and high-sensitivity infrared thermal imaging camera were used for the tests. The uniaxial tensile tests were carried out at three different strain rates. A clear tendency to increase the sample temperature with an increase in the strain rate was observed. This conclusion applies to all materials and directions of sample cutting investigated with respect to the sheet-rolling direction. An almost linear correlation was found between the percent strain and the value of the maximum surface temperature of the specimens. The method used is helpful in assessing the extent of homogeneity of the strain and the material effort during its deformation based on the measurement of the surface temperature.

Analysis of Crack Width Development in Reinforced Concrete Beams

“…DIC is widely used in many fields of science, e.g., biomechanics, astronautics, microelectronics and now also in civil engineering [28][29][30][31][32][33][34][35][36][37][38]. In the experiments, the commercial ARAMIS system was used which is presented in detail in [19,39].…”

Analysis of the Displacement of Thin-Walled Workpiece Using a High-Speed Camera during Peripheral Milling of Aluminum Alloys

“…High-speed cameras are currently used in machining to a small extent, they are mainly used in the diagnostics of machine tools to measure the accuracy of positioning [ 15 ], tool displacement [ 16 ] and in the field of material strength [ 17 , 18 , 19 ].…”

“…The use of a high-speed camera during the shear test allowed for the precise determination of the three shear stages of the tested titanium alloys [ 18 ]. On the other hand, the research [ 21 ] allowed to measure temperature changes with the use of a high-speed infrared camera during the perforation of ES mild steel.…”

Full-Field Temperature Measurement of Stainless Steel Specimens Subjected to Uniaxial Tensile Loading at Various Strain Rates

“…Feng and Xue [31] applied infrared thermography tests and DIC tests for the display of the thermal field during mechanical tensile tests of 3D printed bolts. Cholewa et al [32] developed the method of calibrated infrared thermal cameras with a stereo-vision DIC system applicable to scales of lengths both large and small.Żaba et al [33] used DIC and IR thermography to find the relationship between yield stress and the Taylor-Quinney coefficient and their change with the strain rate during the stretching of nickel-based superalloys. A coupled thermography and DIC system was calibrated using a series of one sided heat exposure experiments performed on loaded sandwich composites.…”

“…A coupled thermography and DIC system was calibrated using a series of one sided heat exposure experiments performed on loaded sandwich composites. Infrared thermography and DIC measurements are not applicable to experiments with low conductivity materials or discontinuous materials [33,34]. Maynadier, et al [35] developed an infrared image correlation system equipped with a single IR camera to measure simultaneous thermal fields and deformation.…”