Abstract
Results from novel DIC-based experiments focused on quantifying the high temperature thermo-mechanical properties of steel alloys at elevated temperatures are presented. In these studies, the vision-based high temperature measurement system is comprised of (a) an induction coil heating system, (b) blue and white light illumination of the specimen, (c) optical band-pass notch filters for each camera centered on the blue light illumination wavelength and (d)~a stereo-camera configuration for acquisition of synchronized image pairs at the desired temperature. The entire system is portable and is sufficiently flexible such that it can be employed with a wide range of specimen geometries. Each pair of stereo images acquired at a specified temperature is analyzed using three-dimensional digital image correlation (stereo-DIC). Results from laboratory studies confirm that the blue light-illumination with optical notch filtering allows high contrast images to be obtained even when the specimen is glowing white hot. The effectiveness of the system is demonstrated by successfully performing experiments to obtain the coefficient of thermal expansion of a steel alloy as a function of temperature. Additionally, technical challenges (e.g., sensitivity, spatial resolution, and repeatability of the measurements) when performing high temperature experiments with the proposed methodology will be discussed.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
M.A. Sutton, J.J. Orteu, H.W. Schreier, Image Correlation for Shape, Motion and Deformation Measurements—Basic Concepts, Theory and Applications (Springer, New York, NY, 2009)
J.S. Lyons, J. Liu, M.A. Sutton, High temperature deformation measurements using digital-image correlation. Exp. Mech. 36(1), 64 (1996)
B. Pan, D. Wu, Z. Wang, Y. Xia, High-temperature digital image correlation method for full-field deformation measurement at 1200 °C. Meas. Sci. Technol. 22(1), 015701 (2011)
X. Guo, J. Liang, Z. Tang, B. Cao, M. Yu, High-temperature digital image correlation method for full-field deformation measurement captured with filters at 2600°C using spraying to form speckle patterns. Opt. Eng. 53(6), 063101 (2014)
X. Chen, N. Xu, L. Yang, D. Xiang, High temperature displacement and strain measurement using a monochromatic light illuminated stereo digital image correlation system. Meas. Sci. Technol. 23(12), 125603 (2012)
R.B. Berke, J. Lambros, Ultraviolet digital image correlation (UV-DIC) for high temperature applications. Rev. Sci. Instrum. 85(4), 045121 (2014)
Acknowledgement
The financial support of ASME Applied Mechanics Division through Haythornthwaite foundation is greatly acknowledged.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 The Society for Experimental Mechanics, Inc.
About this paper
Cite this paper
Koohbor, B., Valeri, G., Kidane, A., Sutton, M.A. (2016). Thermo-mechanical Properties of Metals at Elevated Temperatures. In: Jin, H., Yoshida, S., Lamberti, L., Lin, MT. (eds) Advancement of Optical Methods in Experimental Mechanics, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-22446-6_15
Download citation
DOI: https://doi.org/10.1007/978-3-319-22446-6_15
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-22445-9
Online ISBN: 978-3-319-22446-6
eBook Packages: EngineeringEngineering (R0)