the harm of iron impurity element. But to join too many Mn can form bulky pounds, but reduce alloy intensity. Mn's addition amount control under 1%.Р Foreign material think. Ni can improve alloy temperature strength and alloy thermal stability. If the ZLI09 containing Ni Ni than not ZLI08 volume stability of. The pistons for this part is very significant. But in recent years that some of the experimental research and to alloy: addition Ni high-temperature performance and no significant improvementР Domestic and foreign automobile engine development and application of the piston materialР Because al-si alloy Si content in a more than 6% of 8%, organization will appear thick needle eutectic anizations, the mechanical properties of the reduced. Alloy Therefore, eutectic (the eutectic) type AI
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