Abstract
	Cu based shape memory alloys provide interesting properties described in several  works ?1-3?. Requirement for it is reversal transformation to parent ?-phase.  Generally those alloys are employed  as  single phase  in initial condition  as pure  parent ? phase. But  combination microstructures of  ?/? and ?/?  are also interesting  because of  required  fine grain, possibility to obtain  low  and constant thermal  expansion or  because of possibility to control hysteresis and stabilisation of martensite. To achieve such microstructures there is necessary to know conditions and kinetics of martensite decomposition during annealing as one form of obtaining of several- phase combinations in CuZnAl alloys.  Subjected work shows in several examples of shape memory alloys   possibility how to achieve various morphological and phase combinations which are applicable to microstructures with controllable parameters of shape memory and related phenomena. It concerns mainly   of microstructures recalled by stabile ?-phase decay as well as by transformation of nonthermoelastic martensite, or heavy stabilised martensite with large shift of transformation temperatures. The results  are then  significantly  different  morphological combinations of  ?,? and ? phases which  can influence also next treatment  for achievement  of combined microstructures with some  volume fraction of  thermoelastic martensite. By this way it is possible to get fine acicular ?-? mixture, plate mixture ?-?, ? phase with dispersive ? particles and even lamellar ?-? mixture with eutectoidal morphology. Each morphological variant has its own substantiation when shape memory and related properties are controlled. It can be final microstructure or transition state which allow required final one.