Ni对Al-5%Fe合金中初生Al_3Fe相形貌的影响  

Influence of Ni on the Morphology of Primary Al_3Fe Phase in Al-5%Fe Alloy

作　　者：周振平[1] 赵素彦[1] 

机构地区：[1]沈阳工业大学材料科学与工程学院,辽宁沈阳市110023

出　　处：《中国铸造装备与技术》2007年第3期20-22,共3页China Foundry Machinery & Technology

摘　　要：采用普通熔铸方法研究了Ni对Al-5%Fe合金铸态组织的影响。结果表明,Ni可明显改善合金中初生Al3Fe相形貌。不加Ni时,合金中的初生Al3Fe相大多为针状、针片状;加入0.2%～1.0%Ni时,Al3Fe相转变为细小针状,针点状和花朵状;Ni含量超过1.0%时,组织开始粗化,出现粗大的长针状Al3Fe相。The effect of Ni on the as-cast microstructure of Al-5%Fe （mass fraction ） alloy has been studied, resulting in improved morphology of primary Al3Fe phase due to the Ni addition.The morphology of Al3Fe is mainly needle like and needle-plate like in Al-5%Fe alloy without Ni and changed into small needle like, needle-dot like and flower like after adding 0.2%N1.0%Ni.However,the primary Al3Fe phase was coarsened and coarse long needle like appeared with more than 1.0% Ni addition.

关 键 词：NI AL-5%FE合金 AL 3Fe形貌 

分 类 号：TG257[金属学及工艺—铸造] TG113.12