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New challenges for the Aluminium alloys used for the production of castings for automotive engine components result from an evolutionary trend of internal combustion engines towards higher specific power output. Cylinder heads, in particular, have to withstand higher operating temperature and stress levels. Present work describes quality control of microstructure (Si-morphologhy and Si-size) and mechanical...
The article deals with the Si particles morphology study of casts from hypoeutectic aluminium alloys. The morphology, distribution and volume of Si particles in α-matrix influence mechanical properties of casts. It is known that the wear resistance of AlSi surface is affected with the hardness of the primary Si particles, too. Long and brittle Si particles have negative effect on mechanical properties,...
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