Cg. De Andres et al., A proposal for a new empirical relationship between dynamic and static mechanical properties of CMn and CrMo low-alloy cast steels, METALLURGIS, 45(1-2), 2001, pp. 72-78
The aim of this work is, to investigate the fatigue performance of low-allo
y cast steels used to produce cast components, which must be heat treated i
n order to obtain suitable mechanical properties. Experimental results of t
ensile strength and fatigue properties were used to analyze existing relati
onship between dynamic and static mechanical properties in steels. Previous
linear relationships only accurately predict the endurance limit in limite
d levels of tensile strength of CMn and CrMo low-alloy cast steels. A parab
olic relationship between endurance limit and static tensile strength param
eter has been proposed in this work. This relationship was obtained for dif
ferent chemical compositions, heat treatments, and microstructures Of these
cast steels with static tensile strengths ranging from 300 to 1300 MPa.