Caratterizzazione metallurgica dell acciaio inox 15-5 ph fabbricato con processo di rifusione var ed esr

The purpose of this thesis is to assess difference between the ESR and VAR remelting systems of 15-5PH steel, and subsequent heat treatments of ageing (precipitation hardening) can influence the microstructure of stainless steel 15-5PH, the mechanical properties and then see if this has any effect on application capabilities of the material.\nMoreover, the study report will help to decide which remelting technique ensure the best stainless steel performances, to ensure the customer a continuous higher quality product.\nThe different types of steel remelting process, carried out in vacuum with the VAR process, or by passing through a liquid slag as in the ESR process, can lead to a more or less thrust, purification from non-metallic inclusions of the material.\nFurthermore, the different time of heat treatment is a further element of diversification. All this may indeed affect the quality of the material.