Abstract：Abstract：The high temperature mechanical properties of high strength ship plate-A36 have been investigated by Gleeble1500 hot simula-tor. By analyzing high temperature mechanical properties and the morphology of fracture at different temperatures,The test results showed that there were two temperature areas of brittleness for high strength ship plate-A36 in 600_ the melting points, the first temperature area of brittleness (Ⅰ) is 1330-the melting points, the second temperature area of brittleness(Ⅲ) is 600-1000℃。The reason why A36 is brittle in the temperature area of brittleness(III) is that the brittleness of Austenite single phase region caused by the precipitation of Particle in steel, such as, AlN、NbCN and so on.
2011, Vol. 30 
