1results about How to "Avoid severe oxidation" patented technology

This invention belongs to the field of advanced metallic materials and powder metallurgy technology, specifically relating to a low-cost, multi-scale twinned synergistic deformation superplastic medium-heavy alloy and its preparation method. The preparation method includes melting the medium-heavy alloy using vacuum induction melting technology, then casting the molten medium-heavy alloy into an ingot and machining electrodes; preparing the electrodes into powder of a predetermined particle size; loading the powder into a casing, and after compaction, heating and degassing the casing until the required vacuum level is met, followed by sealing the casing; hot isostatic pressing of the sealed casing, and finally machining to remove the casing, yielding the superplastic medium-heavy alloy material. The superplastic medium-heavy alloy material prepared by this invention possesses multi-scale twins and an FCC matrix, with the FCC matrix accounting for more than 95% of the alloy, both ensuring good plasticity of the medium-heavy alloy material.