Processing, microstructural characterization and mechanical properties of in situ Ti3AlC2/TiAl3 composite by hot pressing

Autor:	Xiaoming Feng, Taotao Ai, Xinqiang Yuan, Liu Fang, Qi Yu, Yingtang Zhang, Miaomiao Ruan, Ning Yu
Rok vydání:	2014
Předmět:	Materials science Mechanical Engineering Composite number Intermetallic Condensed Matter Physics Hot pressing Microstructure Cracking Fracture toughness Flexural strength Mechanics of Materials Vickers hardness test General Materials Science Composite material
Zdroj:	Materials Science and Engineering: A. 610:297-300
ISSN:	0921-5093
DOI:	10.1016/j.msea.2014.05.054
Popis:	Ti 3 AlC 2 /TiAl 3 composite was successfully synthesized from Ti, Al, TiC and CNTs mixture powders at 1350 °C and 30 MPa for 2 h in situ. The Vickers hardness, flexural strength and fracture toughness of the composite are 4.3±0.1 GPa, 487.2±64.6 MPa and 5.5±0.2 MPa m 1/2 , respectively. Toughening is mainly attributed to crack deflection, crack bridging, crack branching and pull-out of Ti 3 AlC 2 particles as well as transgranular cracking. The strong interface combination strength and the dispersed Ti 3 AlC 2 particulates are responsible for the enhancement of the strength.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7a1fbd1b69790edd81f344a0a4a1e92f https://doi.org/10.1016/j.msea.2014.05.054 Zobrazit plný text záznamu Full Text from ScienceDirect