Techno Press

Steel and Composite Structures   Volume 17, Number 5, November 2014, pages 549-560
Mechanical testing of the behavior of steel 1.7147 at different temperatures
Josip Brnic, Goran Turkalj and Marko Canadija

Abstract     [Full Text]
    The paper provides the test results and analysis on the behavior of steel 1.7147 at different temperatures. Mechanical uniaxial tests were used to determine mechanical properties, resistance to creep and Charpy impact tests to determine impact energy. Test results are presented in the form of engineering stress-strain diagrams, creep curves as well as numerical data related to impact energy. The results show that the tensile strength has the highest value at room temperature, and the same goes for the yield strength as well as for modulus of elasticity. After room temperature both of mentioned properties decrease with temperature increasing. Some of creep curves were modeled using rheological models and analytical equation. Based on Charpy impact energy an assessment of fracture toughness was made.
Key Words
    1.7147 steel; material properties; creep; creep modeling; fracture toughness calculation
Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka, Croatia.

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