Naslov
Changes in the Material Properties of Steel 1.4762 Depending on the Temperature

Autori
Brnić, Josip ; Turkalj, Goran ; Kršćanski, Sanjin ; Niu, Jitai ; Li, Qiang

Izvornik
High temperature materials and processes (0334-6455) 35 (2016), 8; 761-767

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Mechanical properties; Creep resistance; Impact energy and fracture toughness assessment; 1. 4762 steel.

Sažetak
This paper presents the experimental results and analysis of the behavior of steel 1.4762 at different temperatures. Tensile mechanical properties as well as creep behaviour were determined using uniaxial tests. Charpy impact tests were used to determine impact energies at different temperatures. Mentioned mechanical properties are displayed as engineering stress- strain diagrams while material resistance to creep is presented in the form of creep curves. Based on Charpy impact energy an assessment of fracture toughness is given. Experimental results show that the values of mechanical properties are continuously decreased by increasing the temperature. After the temperature of 623K (tensile strength: 468 MPa ; yield strength: 298 MPa) the decrease of the ultimate strength and yield strength is especially emphasized and the difference between them is getting smaller. As far as the creep resistance, it can be considered quite small, except at the low stress levels.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja, Strojarstvo, Temeljne tehničke znanosti

POVEZANOST RADA