摘要
In the current study,an effort has been taken to manufacture and compare the characteristics of functionally graded tubes. Two samples have been produced with a commercially pure aluminium matrix reinforced by 10%(in weight) SiC and Al_(2)O_(3)with a 16 μm average size via horizontal centrifugal casting. In addition to microstructure analysis,the mechanical and wear characteristics have been investigated across the thickness of the produced tubes.The results showed that the addition of SiC and Al_(2)O_(3)particles relative to the unreinforced matrix(pure Al)significantly enhance the mechanical properties and wear resistance of the produced tubes. Thus,these tubes are the best choice for automobile applications.
本研究致力于制造和比较功能梯度管的特性。采用水平离心铸造的方法,用平均尺寸为16μm,质量分数为10%的SiC和Al_(2)O_(3)增强的商用纯铝基体制备出两个样品。除了微观结构分析外,本文还研究了梯度管整体厚度区间的机械和磨损特性。结果表明,相对于未添加增强基体(纯铝)的材料之外SiC和Al_(2)O_(3)增强颗粒的加入显著提高了管材的力学性能和耐磨性。颗粒增强管材是作为汽车应用的最佳选择。
作者简介
Corresponding author:SALEH Bassiouny,Ibrahim received his B.S.&M.S.from Alexandria University(AlexU),Alexan⁃dria,Egypt in 2012 and 2017,respectively.He obtained his Ph.D.in engineering mechanics from the College of Mechan⁃ics and Materials,Hohai University(HHU),Nanjing,Chi⁃na in 2021,and has over seven years of research experience in the field of material science and technology.His current re⁃search is focusing on functionally graded materials,metal matrix composites,additive manufacturing,equal-channel angular pressing,wear,casting,and corrosion analysis.E-mail address:bassiouny.saleh@alexu.edu.eg;AHMED Mahmoud Hamed,is currently Professor Emeritus of Production Engineering,Alexandria University.He received his B.S.(1970)with Honors,and M.S.(1973)in Production Engineering from Alexandria University(AlexU)in Egypt and obtained his Ph.D.in 1978 from Bir⁃mingham University,UK.In addition of being affiliated to AlexU for over 50 years,he worked as a full time visiting professor at UAE University,KAAU University in Saudi Arabia,Arab University of Beirut(Lebanon),Qatar Uni⁃versity,and as part time visiting professor to many Egyptian Universities including:The Arab Academy for Science and Technology,El-Mansoura University,El-Minia Universi⁃ty,and El-Menofeyia University.Research interests include manufacturing and characterization of advanced materials,functionally graded materials,plasticity,and stress analysis,as well as failure analysis.
