合金元素对Fe-Al-Cu合金的组织与性能的影响  

Mechanical Properties and Microstructures of Fe-Al-Cu Alloy

作　　者：许志刚[1] 孙仙奇[1] 唐鹏[1] 王志云[1] 

机构地区：[1]广西大学材料科学研究所,广西南宁530004

出　　处：《材料开发与应用》2005年第6期13-16,共4页Development and Application of Materials

基　　金：广西教育厅资助项目(C701001)

摘　　要：研究了不同含量的钛、锰、硼及其交互作用对70.8Fe18.7Cu10.5Al(w/%)合金铸态组织与性能的影响。结果表明:合金由铁固溶体、铜固溶体及弥散分布于铁固溶体中的析出相组成。钛、硼的加入可细化结晶组织并提高合金的抗拉强度;加入适量的钛、锰、硼可使合金获得较好的综合力学性能。Mechanical properties and microstrucmres of Fe-Al-Cu and Fe-Al-Cu alloyed with elements Ti, Mn and B were studled. The results of powder diffraction, strength test and microstructure analysis manifested that Fe-Al-Cu alloy consists of solidsolution α-Fe, solid-solution Cu and precipitated phase dispersed in solid-solution α-Fe. Elements Ti and B are beneficial to refine grains and meliorate the tensile strength of the alloy. With addition of proper amount of Ti, Mn and B, the mechanical properties of the alloy are improved.

关 键 词：铁铝合金 抗拉强度 断后伸长率 

分 类 号：TG290[金属学及工艺—铸造]