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    • 6. 发明授权
    • Method for manufacturing thin sheets of high strength titanium alloys description
    • 高强度钛合金薄板的制造方法
    • US07708845B2
    • 2010-05-04
    • US11351533
    • 2006-02-10
    • Vladislav Valentinovich TetyukhinIgor Vasilievich LevinAlexander Nikolaevich KozlovAndrey Vladimirovich ZaitsevAlexander Vladimirovich Berestov
    • Vladislav Valentinovich TetyukhinIgor Vasilievich LevinAlexander Nikolaevich KozlovAndrey Vladimirovich ZaitsevAlexander Vladimirovich Berestov
    • C22F1/18
    • C22F1/183
    • Disclosed is a method for manufacturing thin sheets of high-strength titanium alloys. The method includes the steps of preparing initial blanks, assembling the initial blanks into a pack within a sheath, and heating and hot rolling the pack of the initial blanks in the sheath. The method is characterized in that, in the step of preparing the initial blanks, blanks having an (α-phase grain size of not more than 2 μm are produced by hot rolling a forged or die-forged slab to a predetermined value of a relative thickness hB/hF, where hB is a thickness in mm of the initial blank before said pack hot rolling and hF is a final sheet thickness in mm, and by heat treating the initial blanks followed by rapidly cooling; and in that the step of pack hot rolling is conducted in quasi-isothermal conditions in longitudinal and transverse directions, while changing a rolling direction by about 90° after a predetermined total reduction in one direction is achieved. The method provides big-sized thin sheets made of high-strength titanium alloys and having homogeneous submicrocrystalline structure where an average grain size is less than 1 μm. The sheets have the required mechanical properties suitable for superplastic forming (SPF) at temperatures below 800° C.
    • 公开了一种制造高强度钛合金薄片的方法。 该方法包括以下步骤:制备初始坯料,将初始坯料组装成鞘内的包装,以及加热和热轧护套中初始坯料的包装。 该方法的特征在于,在制备初始坯料的步骤中,具有(α相粒径不大于2μm)的坯料通过将锻造或模锻板坯热轧至相对的预定值 厚度hB / hF,其中hB是在所述包装热轧之前的初始坯料的厚度(mm),hF是最终的板厚(mm),并且通过热处理初始坯料然后快速冷却;以及包装 在纵向和横向的准等温条件下进行热轧,同时在一个方向上预定的总的还原之后,将轧制方向改变约90°,该方法提供由高强度钛合金制成的大尺寸薄板 并且具有均匀的亚微晶结构,其中平均晶粒尺寸小于1μm,该片材在低于800℃的温度下具有适合于超塑性成形(SPF)的所需机械性能。
    • 10. 发明授权
    • Titanium base alloy
    • 钛基合金
    • US08771590B2
    • 2014-07-08
    • US11913793
    • 2006-05-06
    • Vladislav ValentinovichIgor Vasilievich LevinIgor Jurievich Puzakov
    • Vladislav ValentinovichIgor Vasilievich LevinIgor Jurievich Puzakov
    • C22C14/00
    • C22C14/00C22F1/183
    • The invention refers to the non-ferrous metallurgy, i.e. to the creation of the modern titanium alloys, having the high genericity. Titanium-base alloy contains aluminum, vanadium, molybdenum, chromium, iron, zirconium, oxygen and nitrogen. Herewith the components of the alloy have the following ratio by weight %; aluminun—4.0-6.0; vanadium—4.5-6.0; molybdenum—4.5-6.0; chromium—2.0-3.6; iron—0.2-0.5; zirconium—0.1-less than 0.7; oxygen—0.2 max; nitrogen—0.05 max; titanium—balance. Technical result—creation of the titanium alloy with the required strength and plastic properties. The alloy may be used to produce the wide range of the products including the large-size forgings and die-forgings as well as semiproducts of small section, such as bars and plates up to 75 mm thick.
    • 本发明涉及有色金属冶炼,即具有高通用性的现代钛合金的生产。 钛基合金含有铝,钒,钼,铬,铁,锆,氧和氮。 因此,合金的组分具有以下重量%的比例; 铝 - 4.0-6.0; 钒-4.5-6.0; 钼-4.5-6.0; 铬-2.0-3.6; 铁-0.2-0.5; 锆-0.1-小于0.7; 氧-0.2最大; 氮-0.05最大; 钛平衡。 技术成果 - 钛合金具有所需的强度和塑性。 该合金可用于生产宽范围的产品,包括大尺寸锻件和锻造件以及小截面的半成品,例如厚度达75毫米的棒材和板材。