| 摘要 |
These alloys are characterised in that the alpha phase of tungsten is in the shape of butterfly wings with dislocation cells between 0.01 and 1 mu m in size and the gamma phase of the binder has a mean free path of less than 15 mu m. …<??>The process consists in subjecting the sintered and annealed product to at least three cycles of operations consisting, in each case in following the puddling by a heat treatment. …<??>The invention finds its application in the production of alloys which have a tensile strength of between 1300 and 2000 MPa and intended especially for use at very high stresses. …<IMAGE>… |
