The primary silicon particles precipitating from the solidification of Al-Si hypereutecticalloy was regarded as inclusions.
将铝硅过共晶合金凝固过程中析出的初生硅颗粒视为夹杂物颗粒。
2
The result indicated that: 1. P-RE combination modification can modify both the eutectic Si and primary Si of the hypereutectic Al-Si alloy at the same time.
研究结果表明:1 . P - RE复合变质对过共晶铝硅合金的初晶硅和共晶硅都具有良好的变质和细化作用。
3
Hypereutectic Al-Si alloy which has small proportion, low coefficient of thermal expansion, good wear resistance and dimensional stability is an ideal piston material.