进口Al-Ti-B和Al-B中间合金成分和组织特点  

Composition and Microstructure of Import Al-Ti-B and Al-B Alloy

作　　者：李志扬[1] 倪红军[1] 汪兴兴[1] 朱昱[1] 

机构地区：[1]南通大学机械工程学院,江苏南通226019

出　　处：《热加工工艺》2011年第1期19-20,共2页Hot Working Technology

基　　金：江苏省科技支撑计划(工业)项目(BE2009090);南通市应用研究计划项目(K2008002和K2009007)

摘　　要：采用辉光放电质谱仪、图像分析仪及分析软件对进口Al-Ti-B和Al-B中间合金的成分和组织进行了研究。结果表明,进口Al-Ti-B合金中Ti含量约为3.89wt%,B含量约为0.90wt%,两者的比例接近4.3∶1;进口Al-B合金中B含量约为2.99wt%;进口Al-Ti-B线材中TiAl3呈较小的杆状和团块状分布,颗粒尺寸为10～30μm,TiAl3的数量也较多;TiB2颗粒的分布较均匀,尺寸细小,且颗粒之间结合疏松;进口Al-B合金中含有大量粒径为2～20μm的AlB2中间相,分散性好。The composition and microstructure of import Al-Ti-B and Al-B alloy were investigated by glow discharge mass,spectrumeter analysis and image analysis.The results show that import Al-Ti-B contains 3.89wt% Ti and 0.90wt%B（mass ratio,Ti to B is close to 4.3 ∶ 1）;import Al-B contains 2.99wt%B.Large amout of TiAl3 particulates in import Al-Ti-B wire are in smaller rod shape and agglomerate shape,in the size of 10～30 μm;TiB2 particulates with small size distribute uniformly,and the combination between the particulates is loose.Import Al-B alloy contains a large number of well distributed AlB2 intermediate phases in the size of 2～20 μm.

关 键 词：进口Al-Ti-B 进口Al-B 成分 组织 细化 

分 类 号：TG146.21[一般工业技术—材料科学与工程]