Patent ID: 7767138

Claim:
A method of producing semi-finished or finished parts from a molybdenum alloy with intermetallic phases, the method which comprises the following steps: mechanically alloying a powder mixture containing at least 60 wt. % Mo, at least 0.5 wt. % Si and at least 0.2 wt. % B in a high-energy grinding mill, the powder mixture existing in elementary, partially prealloyed, or fully prealloyed form; hot compacting the powder mixture at a compacting temperature T, where 1100° C.<T<1900° C.; superplastic forming at a forming temperature T, where 1000° C.<T<1600° C., and at a forming rate {dot over (ε)}, where 1×10 −6 s −1 ≦{dot over (ε)}<10 0 s −1 ; and heat treating at a temperature T, where 1400° C.<T<1900° C.