Process for manufacturing foils, sheets and shaped parts from an alloy with titanium and aluminium as its main elements

摘要

Summary The invention is related to a process for manufacturing foils, sheets and shaped parts from an alloy with titanium and aluminium as its main elements wherein in that in a first phase a sandwich structure is made by bonding one or more foils or sheets of titanium and/or titanium alloy on one side or both sides with one or more aluminium and/or aluminium alloy foils or sheets in the first phase; and that in a second phase, the sandwich, either immediately or after an intermediary forming step, is firstly annealed below the melting temperature of the applied aluminium layer until the aluminium has completely diffused into the titanium layers and finally heat treated above the melting temperature of the applied aluminium foil but below the melting point of TiAl 3 until a homogenous titanium alloy or titanium aluminide alloy has formed.