Effects of particle size,bimodality and heat treatment on mechanical properties of pumice reinforced aluminum syntactic foams produced by cold chamber die casting

作     者：Cagin Bolat Ismail Cem Akgun Ali Goksenli ?a??n Bolat;?smail Cem Akgün;Ali G?k?enli

作者机构：Faculty of Mechanical EngineeringIstanbul Technical University34437IstanbulTurkey 

出 版 物：《China Foundry》 (中国铸造（英文版）)

年 卷 期：2021年第18卷第6期

页      面：529-540页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Süleyman Demirel Üniversitesi 

主　　题：pumice cold chamber die casting syntactic foam bimodality damage characteristic 

摘      要：In recent years,metal matrix syntactic foams(MMSFs)have become highly attractive owing to their unique physical,microstructural and mechanical *** to their promising potential for different industrial areas like automotive,aviation,and defense,these advanced engineering materials can also be evaluated as serious alternatives to particle reinforced metallic composites and conventional metallic *** from previously reported laboratory scaled techniques in the literature,this experimental effort focuses on the feasibility of MMSF manufacturing via a fully automated and industrial-based cold chamber die casting ***,1-2 mm,2-4 mm,and bimodal(50vol.%)natural-based pumice filled aluminum syntactic foams were manufactured utilizing a purpose-made casting ***,macroscopic,and microscopic examinations show that all of the fabricated samples display perfect matrix/filler *** density levels of fabricated syntactic foams range between 1.50 and 1.80 g·cm^(-3) depending upon the pumice particles size *** assess mechanical responses,quasi-static compression tests were ***,half of the foam samples were subjected to heat treatment to explore possible influences of aging on the compressive features and damage *** indicate that although the heat treatment enhances the compressive strength,plateau stress,and energy absorption properties of the fabricated foams,it changes damage mode of the samples by causing brittle dominant deformation.