چكيده به لاتين
Magnesium matrix composites attract increasing attention due to its proper mechanical and metallurgical properties. By transforming the pure magnesium to its composite, its hardness will be improved with better corrosion resistance behavior. One of the most undesirable properties of magnesium is its surface properties like hardness, wear resistance where by applying a thin composite layer on the substrate, its surface hardness and wear resistance can be improved significantly.
In this thesis, two methods are investigated to produce magnesium matrix composites on a base magnesium sheet. The first method is a hybrid method that consists several stages including powder mixing, powder compressing, sintering and hot rolling. The second method is to bond the magnesium composite to a magnesium substrate with hot rolling method. The results show improving of the surface hardness in all composite specimens compare to their substrate. In the second method, a very desirable bonding between the surface composite and substrate occurred and its composite layer shows better wear resistance properties in a standard wear test, comparing to its substrate.
