Cu/Al and Cu/Al/Ni memory alloys having improved mechanical properties are prepared by powder metallurgy from mixtures of pre-alloyed and/or pre-mixed powder ingredients. The mixture of powder ingredients is subjected successively to isostatic pressing, sintering in an inert atmospheric and subsequent multi-step hot working with intermediate annealing which serves to homogenize. Final annealing is carried out in the beta -phase solid solution temperature range and the annealed article is quenched in water.
申请公布号
DE3065931(D1)
申请公布日期
1984.01.26
申请号
DE19803065931
申请日期
1980.03.03
申请人
BBC AKTIENGESELLSCHAFT BROWN, BOVERI & CIE.
发明人
MELTON, KEITH, DR.;MERCIER, OLIVIER, DR.;RIEGGER, HELMUT, DR.