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TITANIUM ALLOY-BASED SHEET MATERIAL FOR LOW-TEMPERATURE SUPERPLASTIC DEFORMATION

机译：钛合金薄板材料的低温超塑性变形

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摘要

Herein disclosed includes the manufacture of sheets from a titanium alloy having a chemical composition efficiently balanced with manufacturability based on known conventional manufacturing techniques for finished products exhibiting low temperature superplastic forming properties. The result is achieved by a sheet material for low temperature superplastic made of titanium alloy with the following content of element by % wt.: 4.5-5.5Al, 4.5-5.5V, 0.1-1.0Mo, 0.8-1.5Fe, 0.1-0.5Cr, 0.1-0.5Ni, 0.16-0.25O, remainder is titanium and residual elements and having molybdenum structural equivalent [Mo]eqiv.5 and aluminum structural equivalent [Al]equiv.8; the equivalent values are calculated from the expressions:; [Mo]eqiv.=[Mo]+[V]/1.5+[Cr]×1.25+[Fe]×2.5+[Ni]/0.8; [Al]eqiv.=[Al]+[O]×10+[Zr]/6.
机译：本文公开的内容包括基于已知的常规制造技术，由钛合金制造的片材，所述钛合金的化学组​​成与可制造性有效地平衡，所述制成品具有低温超塑性成形性能。通过钛合金制成的低温超塑片材可以达到上述结果，该片材具有以下元素含量（重量百分比）：4.5-5.5Al，4.5-5.5V，0.1-1.0Mo，0.8-1.5Fe，0.1-0.5 Cr，0.1-0.5Ni，0.16-0.25O，其余为钛和残余元素，并且钼结构当量[Mo]当量> 5且铝结构当量[Al]当量<8;等效值由以下表达式计算： <？in-line-formulae description =“ In-line Formulae” end =“ lead”？> [Mo] eqiv。= [Mo] + [V] /1.5+ [Cr]×1.25 + [Fe]×2.5 + [Ni] /0.8 <？in-line-formulae description =“在线公式” end =“ tail”？>; <？in-line-formulae description =“在线表达式” end =“ lead”？> [Al] eqiv。= [Al] + [O]×10 + [Zr] / 6。<？in-line-公式description =“ In-line Formulae” end =“ tail”？>

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