Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6750556 | Journal of Constructional Steel Research | 2018 | 9 Pages |
Abstract
The use of a material for a particular purpose is based on its properties. In this sense, the article deals with the analysis of the results of experimental researches performed on steel 51CrV4. Experimental studies included responses of material at room and high temperatures as well as creep and fatigue behaviors of considered material. Responses of the material at room and high temperatures are displayed in the form of engineering stress-strain diagrams. Based on these responses were determined mechanical properties such as ultimate tensile strength (770â¯MPa/20â¯Â°C; 98â¯MPa/700â¯Â°C), 0.2 offset yield strength (642â¯MPa/20â¯Â°C; 60â¯MPa/700â¯Â°C) and modulus of elasticity (198â¯GPa/20â¯Â°C; 37â¯GPa/700â¯Â°C). Short time creep curves show the behavior of material at certain high temperatures and stress strevels. Each creep process is performed at constant temperature and the corresponding constant stress. Charpy impact energy (average values: 20â¯J/20â¯Â°C; 65â¯J/200â¯Â°C) was tested at different temperatures, and consequently, fracture toughness was calculated based on these results. Finally, uniaxial fatigue limit in amount of 251â¯MPa was calculated based on uniaxial high cycle fatigue tests at stress ratio of Râ¯=â¯â¯ââ¯1.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Josip Brnic, Marino Brcic, Sanjin Krscanski, Domagoj Lanc, Jitai Niu, Peng Wang,