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Nickel-Titanium Alloys: Corrosion "Proof" Alloys for Space Bearing, Components and Mechanism ApplicationsAn intermetallic nickel-titanium alloy, 60NiTi (60 wt% Ni, 40 wt% Ti), is shown to be a promising candidate tribological material for space mechanisms. 60NiTi offers a broad combination of physical properties that make it unique among bearing materials. 60NiTi is hard, electrically conductive, highly corrosion resistant, readily machined prior to final heat treatment, and is non-magnetic. Despite its high Ti content, 60NiTi is non-galling even under dry sliding. No other bearing alloy, metallic or ceramic, encompasses all of these attributes. Since 60NiTi contains such a high proportion of Ti and possesses many metallic properties, it was expected to exhibit poor tribological performance typical of Ti alloys, namely galling type behavior and rapid lubricant degradation. In this poster-paper, the oil-lubricated behavior of 60NiTi is presented.
Document ID
20100025843
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
DellaCorte, Christopher (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 24, 2013
Publication Date
June 1, 2010
Subject Category
Metals And Metallic Materials
Report/Patent Number
E-17269
NASA/TM-2010-216334
Meeting Information
Meeting: 40th Aerospace Mechanisms Symposium
Location: Cocoa Beach, FL
Country: United States
Start Date: May 12, 2010
End Date: May 14, 2010
Funding Number(s)
WBS: WBS 877868.02.07.03.01.01.04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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