Effect of Composition, Particle Size, and Heat Treatment on the Mechanical Properties of Al-4.5 wt.% Cu Based Alumina Particulate Reinforced Composites Massachusetts Institute of Technology

Format:

Conference/Event

Author/Creator:

Seleznev, Maxim L., author.

Conference Name:

International Congress & Exposition (1998-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

The quest for higher efficiency and performance of automotive vehicles requires application of materials with high strength, stiffness and lower weight in their construction. Particulate-reinforced aluminum-matrix composites are cost-competitive materials, which can meet these requirements. MMCC, Incorporated has been optimizing particulate-reinforced alloy systems and developing the Advanced Pressure Infiltration Casting (APIC) process for the manufacture of components from these materials. This paper discusses the results of a recent study in which composites reinforced with 55 volume% alumina were cast using two sizes of alumina particulate and eight different matrix alloys based on Al-4.5 wt.% Cu with varying amounts of silicon and magnesium. Optimum heat treatments for each alloy were determined utilizing microhardness studies. The tensile strength and fracture toughness were evaluated as a function of alloy chemistry, particulate size, and heat treatment. MMCC has used one of these composite materials, 2214/Al203-55p/T6, to cast composite brake calipers and connecting rods that provide significant weight savings over their ferrous counterparts

Notes:

Vendor supplied data

Publisher Number:

980700

Access Restriction:

Restricted for use by site license