A Method to Make Classification of the Heat Treatment Processes Performed on Bronze Using Incomplete Knowledge

The article describes the problem ofselection ofhea t treatment parametersto obtainthe requiredmechanic al propertiesin heat- treated bronzes.Amethodology for the construction ofa class ificationmodelbased onrough settheory is presented. A modelof this type allowsthe construction ofinference rulesalso in thecase when ourknowledge of theexisting phenomenais incomplete, and this is situation commonly encounteredwhen new materials enter the market. Inthe case of new testmaterials, such asthe grade of b ronze describedinthisarticle, we still lackfull knowledge and the choice of heat tre atmentparameters is based ona fragmentaryknowledge resulting fromexperimental studies.The measurement resultscan be useful in bui lding of a model, this model, however, cannot bedet erministic, but can only approximatethe stochasticnature ofphenomena.The use ofrough set theoryallows for efficientinferenceals oin areasthat are not yetfully explored.