Effect of Temperature-Force Factors and Concentrator Shape on Impact Fracture Mechanisms of 17Mn1Si Steel

Table 3

Fracture energy of 17Mn1Si steel specimens with different notches under impact bending.

T, °C	Fracture energy, , J
	V-notch			U-notch			I-notch
	−60	7.26	2.47	4.79	25.02	20.22	4.80	7.35	2.06	5,29
−40	15.82	4.86	10.96	35.53	7.91	27.62	14.47	3.36	11,11
−20	36.27	18.31	17.96	51.55	38.76	12.79	37.98	7.65	30,33
0	47.11	7.25	39.86	68.39	41.59	26.80	48.01	7.39	40,62
20	57.51	27.37	30.14	80.75	37.55	43.20	55.15	21.13	34,02

: initiation; : propagation.