Influence of Plastic Strain on Heat Capacity of L485ME Pipe Steel Grade

Adam Lipski, Maciej Witek (), Mechri Abdelghani and Piotr Swacha
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Adam Lipski: Laboratory for Research on Materials and Structures, Faculty of Mechanical Engineering, Bydgoszcz University of Science and Technology, Al. Prof. S. Kaliskiego 7, 85-796 Bydgoszcz, Poland
Maciej Witek: Department of Heating and Gas Systems, Warsaw University of Technology, Nowowiejska Str. 20, 00-653 Warszawa, Poland
Mechri Abdelghani: Composite Structures and Innovative Materials Laboratory, University of Sciences and Technology USTOMB, BP 1505, Oran 31000, Algeria
Piotr Swacha: Laboratory for Research on Materials and Structures, Faculty of Mechanical Engineering, Bydgoszcz University of Science and Technology, Al. Prof. S. Kaliskiego 7, 85-796 Bydgoszcz, Poland

Energies, 2024, vol. 17, issue 7, 1-16

Abstract: The aim of this work is an experimental evaluation of a specific heat capacity as a function of plastic strain for thermo-mechanically rolled pipe material, with application of an infrared thermographic camera. The tensile load tests of samples prepared of L485ME (X70M) steel grade were performed with the use of a strength machine. Based on other known material thermophysical properties, the determination of heat source parameters was conducted with the use of an infrared thermography and with an optimization task solution. A linear regression equation describing the specific heat capacity as a function of plastic percentage elongation for L485ME steel grade was determined. The experimental results of the present study showed a linear increase in the specific heat capacity in the range of the analyzed tensile deformation up to 16%. The presented methodology is suitable for assessment of the material specific heat capacity as a function of strain up to the occurrence of the sample narrowing in a direction perpendicular to the tensile force.

Keywords: specific heat capacity; tensile load test; infrared thermography; thermo-mechanically rolled pipe material; L485ME steel grade (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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