Wear Properties of In-Situ Reacted Al-AlN Composite Sintered Material and Application for Automatic Transmission Parts Sumitomo Electric Industries Limited

Format:

Conference/Event

Author/Creator:

Kondoh, Katsuyoshi, author.

Conference Name:

International Congress & Exposition (1999-03-01 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

In-situ formed Al-AlN sintered composite materials have been developed by the direct nitriding process based on the reaction of the aluminum matrix to nitrogen gas during sintering. A traditional press-sinter(P/S) method, hot extrusion(H/E) and powder forging (P/F) processes are available to consolidate the composite aluminum alloys. Fine AlN particles less than 1 μm in diameter dispersed as hard particles in the material have a significantly strong bonding to the matrix. They have an important role to improve wear resistance equivalent to the hard anodizing or Ni-P plating. The aluminum alloy also shows a low friction coefficient (less than 0.01) under oil lubricating conditions because fine AlN particles make it possible to form oil film at the interface between the counterpart material. The Al-AlN composite material shows an outstanding performance in the application to the automotive components, in particular Automatic Transmission (AT) parts such as valve spools and oil-pump rotors. The material without surface treatments has a high potential to be used in various applications in automotive where good wear resistance and a low friction coefficient are required under oil lubricating conditions

Notes:

Vendor supplied data

Publisher Number:

1999-01-1048

Access Restriction:

Restricted for use by site license