Rapid Determination of the S-N Curve for Steel by means of the Thermographic Method

Table 1

Chemical composition of the specimens made of C45 steel used for tests (wt%).

	C	Si	Mn	P	S	Cr	Mo	Ni	Cr + Mo + Ni
Acc. to PN-EN 10083-2:2008	0.42–0.50	<0.40	0.50–0.80	<0.045	<0.045	<0.40	<0.10	<0.40	<0.63
For tested specimens	0.43	0.15	0.60	0.010	0.012	0.04	0.01	0.01	0.06