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()
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()

图9. 钢模冷却和铜模冷却Al-20%Si合金拉的伸断口形貌

Fig.9. Al-20%Si alloy tensile fracture morphology 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