Cooling Time and Brittleness of Various Steels Submitted ot Welding (Report 2)
On 52-57kg/mm2High Tensile Steels
1958 Volume 27 Issue 8 Pages 461-465
Details
1958 Volume 27 Issue 8 Pages 461-465
Absorbed energies by non-notch-impact bend at 0°C and bend angles by non-notch-impact and slow bend of five high tensile steels, of which ultimate tensile strengths are in the range of 52-57 kg/mm2, were investigated for various cooling times from A3 point to 500°C.
In the neighbourhood of the critical cooling time Cf', the bend angle decreased with decrease of the cooling time for all steels. And four steels showed the decrease of absorbed energy over the critical cooling time Cf', but a steel showed the increase of the energy over Cf'.
