Abstract
The article presents the results of investigation of thermal expansion of ChS-139 steel in the temperature range 20–720 °C. Measurements were carried out by dilatometric method with DIL-402C unit manufactured by NETZSCH (Germany) with the error (1.5–2)×10−7 K−1. The approximation dependences of thermal coefficient of linear expansion on temperature have been obtained and reference tables have been calculated. The abnormal change of expansion coefficient above 550 °C is shown, and the explanation of the phenomenon is given.
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The work was financially supported by RF Ministry of Education and Science (Agreement 8073) and the Russian Foundation for Basic Research (Grant No. 12-08-00192_a).
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Stankus, S.V., Kozlovsky, Y.M., Yatsuk, O.S. et al. Thermal expansion of ChS-139 steel in temperature range 20–720 °C. Thermophys. Aeromech. 20, 355–358 (2013). https://doi.org/10.1134/S086986431303013X
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DOI: https://doi.org/10.1134/S086986431303013X