Method for determination of susceptibility to shrinkage of Al alloys was developed. With this method we can help our selves at design of new castings and feeding systems. Results of this method can be also used for optimization of casting simulation and interpretation of simulation results. Castings of this method were made and analyzed by X-ray analysis, thermal analysis was made and castings were cut to look inside to determine shrinkage porosity.
COBISS.SI-ID: 982879
The purpose of the presented paper was to examine the oxidation of Mg-Al alloys in the atmosphere of oxygen at various temperatures. The basic examination methods used were differential scanning calorimetry (DSC) and thermogravimetry (TG). The latter is based on recording the change of sample mass as a function of temperature. The results show that the oxide layer can either protect the material against progressive oxidation or it can cause complete disintegration of material. The nature of oxide layer depends on the external conditions.
COBISS.SI-ID: 909151