1986 Volume 52 Issue 476 Pages 841-846
To make a quantitative analysis of the effect of stress ratio on the fatigue properties for carburized steel, the fatigue properties and fatigue fracture mechanism were examined for 2 carburized steels. Carburizing, quenching and tempering were performed at one condition, and the fatigue strength was evaluated up to 108 cycles under uniaxial loading of two stress ratios, R=-1 and 0, at room temperature in laboratory air. The threshold stress intensity factor when a mode I crack begins to grow was linearly related to (1-R)γ for the two carburized steels, and by a similar relation, the fatigue life can be predicted in the long life region over about 106. The lope on the Haigh diagram was discussed by fracture mechanics.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Transactions of the Japan Society of Mechanical Engineers Series C
Transactions of the Japan Society of Mechanical Engineers Series B
