冷却速率对Al-20%Si合金Si相形貌及性能的影响
江峻1,黄诗鑫1,王连登2,张思彬1,朱定一1(
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Effect of Cooling Rate on Microstructure Evolution and Mechanical Property of Cast Al-20% Si Alloy
Jun JIANG1,Shixin HUANG1,Liandeng WANG2,Sibin ZHANG1,Dingyi ZHU1()
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图7. 不同厚度的钢模冷却和铜模冷却Al-20%Si合金深腐蚀后初生Si相的形貌
Fig.7. Microstructure of primary Si phase after deep etching of Al-20%Si alloy Fig. (a~d) cooling in the steel mold; Fig. (e~h) cooling in the copper mold (a, e) 20 mm-thick casting; (b, f) 15 mm-thick casting; (c, g) 10 mm-thick casting; (d, h) 5 mm-thick casting
