Thermostability of Monolithic and Reinforced Al–Fe–V–Si Materials
Al–Fe–V–Si alloys reinforced with SiC particles were prepared by multi-layer spray deposition technique. Both microstructures and mechanical properties including hardness and tensile properties development during hot exposure process of Al–8.5Fe–1.3V–1.7Si,
Al–8.5Fe–1.3V–1.7Si/15 vol% SiCP and Al–10.0Fe–1.3V–2Si/15 vol% SiCP were investigated. The experimental results showed that an amorphous interface of about 3 nm in thickness formed between SiC particles and the matrix. SiC particles
injected silicon into the matrix; thus an elevated silicon concentration was found around α-Al12(Fe, V)3Si dispersoids, which subsequently inhibited the coarsening and decomposition of α-Al12(Fe, V)3Si dispersoids and enhanced
the thermostability of the alloy matrix. Moreover, the thermostability of microstructure and mechanical properties of Al–10.0Fe–1.3V–2Si/15 vol% SiCP are of higher quality than those of Al–8.5Fe–1.3V–1.7Si/15 vol% SiCP.
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HEAT RESISTANT ALUMINUM ALLOY;
Document Type: Research Article
College of Mechanical Engineering, Huaihai Institute of Technology, Lianyungang 222005, People's Republic of China
Department of Human Resources, Huaihai Institute of Technology, Lianyungang 222005, People's Republic of China;, Email: [email protected]
Department of Mechanical Engineering, Zhangjiajie Institute of Aviation Industry vocational, Zhangjiajie, Hunan 427000, People's Republic of China
College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China
Publication date: 2009-10-01