The mechanical properties of a low-carbon steel and a Swedish iron have been examined over a range of temperatures from − 196 to 150°C by means of an instrumented impact test. Load vs. temperature curves exhibit similar features to curves obtained from notch bend tests. The effects of specimen geometry and microstructure on the fracture stress have been studied and the results are discussed in terms of a critical tensile stress for slip-initiated cleavage fracture.
Get full access to this article
View all access options for this article.
References
1.
TardifH. P. and MarquisH., Canad. Met. Quart., 1963, 2, 373.
2.
FearnehoughG. D. and HoyC. J., J. Iron Steel Inst., 1964, 202, 912.
3.
Ya. Voloshenko-KlimovitskyYu., lzvest. Akad. Nauk S.S.S.R., 1958, [Tekhnl, 32, (6), 42.
4.
AuglandB., Brit. Weld. J., 1962, 9, 434.
5.
NeuberH., “Theory of Notch Stresses” (English translation), 1946: Ann Arbor, Michigan (J. W. Edwards).
6.
GreenA. P. and HundyB. S., J. Mechanics Physics Solids, 1956, 4, 128.
7.
KnottJ. F., Proc. Roy. Soc., 1965, [A], 285, 150.
8.
KnottJ. F., J. Iron Steel Inst., 1966, 204, 104.
9.
LevenM. M. and FrochtJ. A., J. Appl. Mechanics, 1952, 74, 560.
10.
HahnG. T. and RosenfieldA., Acta Met., 1966, 14, 1815.
11.
McMahonC. J. and CohenM., ibid., 1965, 13, 591.
12.
AlexanderJ. M. and KomolyT. J., J. Mechanics Physics Solids, 1962, 10, 265.
13.
WilshawT. R. and PrattP. L., ibid., 1965, 14, 7.
14.
GriffithsJ. R. and CottrellA. H., ibid., 1965, 13, 135.
15.
GriffithsJ. R. and CottrellA. H., ibid., 1967, 15, 125.
