Influence of Carbon Content on Elevated Temperature Fatigue Properties of Different Steel Alloys


Fatigue properties (fatigue life and fatigue limit) of three different carboncontent steel alloys, CK35, Y8 and Y10 were investigated at RT and 300 ºC fatiguetesting. The main contribution of this work was to find the influence of carboncontent on high temperature fatigue properties. It was found that the fatigue life inboth cases, RT and 300 ºC, decreased dramatically via increasing carbon contentfrom 0.35% to 0.8% but at 1% carbon content the fatigue life was increased. Thefatigue limit and its reduction percentage took the same trend of the fatigue life.