Effects of can parameters on canned—forging process of TiAl base alloy（II）——Mechanical behavior
摘要
By using thermal simulation technique and computer simulation, the conventional canned-forging process of TiAl base alloy was studied. The effect of can parame ters on the mechanical behavior of TiAl alloys with diffe rent H/D ratios was analyzed in this process. The results show that, the pea k stress of TiAl base alloy without canning is far higher than that with canning. Compared with the samples with the same H/D ratio, the peak stress decreases with increa sing can thickness; while compared with the samples with the same can thickness , the peak stress decreases with increasing H/D ratio. The decrease of t he true stress of TiAl base alloy with canning were analyzed according to the theory of plastic deformation and results of computer simulation.