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Experimental determination and prediction of the mechanical properties of steel 1.7225 (CROSBI ID 207772)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Brnić, Josip ; Turkalj, Goran ; Čanađija, Marko ; Niu, Jitai Experimental determination and prediction of the mechanical properties of steel 1.7225 // Materials science & engineering. A., 600 (2014), 47-52. doi: 10.1016/j.msea.2014.01.097

Podaci o odgovornosti

Brnić, Josip ; Turkalj, Goran ; Čanađija, Marko ; Niu, Jitai

engleski

Experimental determination and prediction of the mechanical properties of steel 1.7225

This paper presents experimental results and the analysis of the behavior of steel 1.7225 at different temperatures. First, experimental results related to the mechanical properties of the material and its resistance to creep are shown using stress-strain diagrams and creep curves. Then, the analysis of the sensitivity of the ultimate tensile strength with respect to strain rate is given. Modeling of some creep curves using an analytic formula is also presented. An assessment of the fracture toughness based on Charpy impact energy is made. The obtained results show that both ultimate tensile strength and yield strength achieve their maximum at room temperature, but these values are reduced with an increase in temperature up to 650K. At this temperature, they achieve approximately 20% of initial values. Notably, this steel may be treated as creep resistant only when it is subjected to a low level of stress at considered temperature.

mechanical properties; short-time creep; creep modeling; impact toughness assessment; 1.7225steel

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Podaci o izdanju

600

2014.

47-52

objavljeno

0921-5093

10.1016/j.msea.2014.01.097

Povezanost rada

Brodogradnja, Strojarstvo, Temeljne tehničke znanosti

Poveznice
Indeksiranost