半固态ZL101合金初生相在固液区间等温保温时形貌演变  

Evolution on morphology of primary phase in semi-solid ZL101 Al alloy during isothermal holding in solid-liquid area

作　　者：刘政[1] 叶文辉[1] 于锋波[1] 

机构地区：[1]江西理工大学材料与化学工程学院

出　　处：《特种铸造及有色合金》2008年第S1期378-382,共5页Special Casting & Nonferrous Alloys

基　　金：江西省自然科学基金资助项目(0650047)

摘　　要：研究了半固态ZL101铝合金初生相在固液相区等温保温下初生相形貌的演变,探讨了工艺参数对ZL101铝合金初生相在固液相区等温保温的影响。结果表明,在不同的保温温度下,随着保温温度的降低,ZL101铝合金的初生相形貌逐渐变好,尺寸变小;在相同的保温温度和不同的保温时间下,随着保温时间的延长,其初生相形貌逐渐圆整,颗粒尺寸仍较细小;浇注温度对初生相形貌及等温时的转变影响较大。获得了低过热度浇注制备半固态ZL101铝合金浆料合适的工艺参数。Evolution on morphology of primary phase in semi-solid ZL101 Al alloy during isothermal holding in the solid-liquid area is investigated and the effect of processing parameters on the morphology is discussed. The results indicate that the morphology and grain size gradually become better and finer with the holding temperature decreasing under the different holding temperature. The morphology gradually comes into better and the grain size is still finer with prolonging of holding time at the same holding tem...

关 键 词：半固态 ZL101铝合金 形貌 等温保温 初生相 

分 类 号：TG27[金属学及工艺—铸造]