Transactions of Materials and Heat Treatment

Title：Research on microstructure and properties of particulate reinforced sillimanite / LY12composite manufactured by semi-solid extrusion from stired mixture

Authors： (Harbin Institute of Technology) Luo Shoujing Hu Lianxi ZhangLei WuoWencan

Unit：

KeyWords： Sillimanite particulate Aluminium alloy Microstructure property

ClassificationCode：TG146.21

year,vol(issue):pagenumber：1996,21(2):0-0

Abstract：

Semi-solid extrusion of the stired sillimanite particulate / LY12 mixture was performed to form the particulate-reinforced sillimanite/ LY12 Composite. Experimental investigation including the testing of the mechanical properties and the thermal expansion coefficient of the composite and the observation of the microsturcture was carried out. It was revealed that the microstructure of the composite is deformation-induced recrystallization microstructure and that the composite possesses good mechanical properties and low coefficient of thermal expansion. This provides a basis for further study and application of the sillimanite reinforced aluminium matrix composites.

Funds：

黑龙江省自然科学基金

Reference：

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