SELECTED PROBLEMS OF A TECHNOLOGY OF THE AZ91 MAGNESIUM ALLOY MELT TREATMENT

As expected, the increasing demand for magnesium alloy castings has already become a fact. Considering this situation, a rich program of the studies on this particular subject has been initiated and put into operat...

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AN ASSESSMENT OF THE POSSIBILITIES TO SHAPE THE MECHANICAL PROPERTIES OF CAST AZ91 MAGNESIUM ALLOY THROUGH APPLICATION OF PROPER HEAT TREATMENT

The aim of this publication is to assess the effect of different types of the standard heat treatment on changes in mechanical properties at room temperature of magnesium alloy from AZ91 family referred to the same...

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Studies of protective coatings used for metal moulds

The die casting method is based on casting into permanent metal moulds, which makes it possible to obtain a large amount of casts with practically identical shapes. Compared to the technology of sand mould casting, this method has many advantages....

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Hot cracking tendency of foundry alloys – an innovative testing method

The results of testing the tendency of light metals to forming defects from the group of discontinuities - hot cracks (W-301) [1], are presented in the hereby study. These are alloys of a small or moderate tendency for hot cracking. However this t...

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