3results about How to "Fully recrystallized" patented technology

The invention discloses an aging strengthening type nickel-based superalloy with a stable superhigh-temperature structure and a preparation method thereof, and belongs to the field of nonferrous metallurgy. According to the high-temperature alloy, a cast ingot is prepared according to a method combining vacuum induction melting and vacuum consumable remelting, then the cast ingot is subjected to homogenization treatment to obtain a casting blank, and then the aging strengthening type nickel-based high-temperature alloy finished product is obtained through forging cogging, forming rolling, final rolling and solid solution heat treatment, according to the invention, the original hot working process is optimized by combining high-temperature large-deformation forming rolling with relatively low-temperature and small-deformation finish rolling, so that the structure of the alloy subjected to ultrahigh-temperature solid solution heat treatment is more uniform and stable, the grain size is greater than level 5, and the high-performance requirements of novel aerospace crafts on the high-temperature alloy in an extreme environment can be met.

The invention discloses a preparation method of an aluminum foil blank for a high-strength 8021 battery soft package, and belongs to the technical field of aluminum alloy processing. According to the method, an 8021 alloy cast ingot serves as a raw material, hot rolling, segmented cold rolling, medium and low temperature intermediate annealing, finish rolling and other procedures are carried out, and the high-strength aluminum foil blank is prepared by optimizing rolling reduction distribution and roll surface roughness. The tensile strength of the obtained blank is larger than or equal to 170 MPa, the plasticity and the surface quality are excellent, the process energy consumption is lower, equipment does not need to be newly added, and the method is suitable for industrial production of the aluminum foil blank for the high-end soft package lithium battery aluminum-plastic film.

The invention discloses a TA11 titanium alloy bar with high creep resistance and high fatigue performance and a preparation method of the TA11 titanium alloy bar, and belongs to the field of titanium alloy material processing. 2, the blank is subjected to multi-heating-number circulating forging; step 3, rolling a finished bar; and 4, surface treatment. By optimizing the proportion of the alpha stable element, the beta stable element and the trace strengthening element and carrying out multi-heating-number forging and finished product rolling to refine the alloy structure within the range above and below the phase transformation point temperature, the high fatigue performance of the TA11 alloy bar is achieved, meanwhile, the trace silicon element is introduced, the dispersion strengthening effect of silicide is utilized, and the high fatigue resistance of the TA11 alloy bar is achieved. Dislocation motion and grain growth are hindered, the high creep resistance of the TA11 alloy is achieved, and the creep resistance and the fatigue resistance of the TA11 alloy bar are synergistically improved.