| 摘要 |
A method for producing a metal film from an alloy having more than 50% nickel includes the following steps: (a) the alloy is melted in volumes of more than one ton in a vacuum induction furnace, or open in an induction or arc furnace, followed by treatment in a VOD or VLF system, (b) the alloy is then poured off in blocks, electrodes or as continuous casting to form a pre-product, followed by single or multiple re-melting by VAR and/or ESU (c) the pre-product is then annealed between 800 and 1350° C. for 1-300 hours under air or protection gas, (d) the pre-product is then hot-formed between 1300 and 600° C. to reduce the thickness of the input material by the factor 1.5-200, such that the pre-product has a thickness of 1-100 mm after the forming and is not recrystallized, recovered, and/or (dynamically) recrystallized having a grain size of smaller than 300 μm, (e) the pre-product is then pickled, (f) the pre-product is then cold-formed to produce a film having an end thickness of 10-600 μm, having a deformation ratio of greater than 90%, (g) the film is then cut into strips of 5-300 mm following the cold-forming, (h) the film strips are then annealed under protection gas between 600 and 1200° C. for 1 second to 5 hours in a continuous furnace, (i) wherein the annealed, film-like material is recrystallized after the annealing and has a high proportion of cubic texture. |
