Microstructure and Mechanical Properties of TiAl/Ti2AlN Composites Prepared by Combustion Synthesis
作者： Atsushi Kakitsuji , Hiroki Miyamoto , Hiroshi Mabuchi , Hiroshi Tsuda , Kenji Morii
DOI: 10.2320/MATERTRANS.42.1897
关键词: Fracture toughness 、 Microstructure 、 Grain size 、 Composite material 、 Materials science 、 Lamella (surface anatomy) 、 Fracture mechanics 、 Ductility 、 Flexural strength 、 Dispersion (chemistry)
摘要: TiAl/Ti2AlN composites were prepared by a reactive arc-melting technique using elemental powders of Ti, Al, and AlN . Ti2AlN particles synthesized the combustion reaction synthesis dispersed in lamella grains, with rod-like shapes sizes 1–3 \\micron width 5–15 \\micron length. The grain size matrix was decreased deviation converged distribution grains decomposed both into TiAl very fine homogenizing treatment. bending strength these larger than that single-phase material it improved increasing content. Their ductility kept same level TiAl. Fracture toughness values enhanced dispersion Ti2AlN, since crack propagation can be deviated such dispersoids composite materials.
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