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Tribological Properties of Fire-Resistant, Nonflammable, and Petroleum-Based Hydraulic Fluids / PI. Lacey, DW. Naegeli, BR. Wright

Conference Author
Tribology of Hydraulic Pump Testing (1995 : )
Physical Description
1 online resource (23 pages) : illustrations, figures, tables
Additional Creators
Lacey, PI., Naegeli, DW., Wright, BR., American Society for Testing and Materials, and ASTM International
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Summary
Petroleum-based hydraulic fluids qualified under MIL-H-6083 are highly flammable. As a result, a fire-resistant polyalphaolefin (PAO)-based fluid, qualified under MIL-H-46170 and developed in the 1970s, and more recently, a nonflammable chlorotrifluoroethylene (CTFE) hydraulic fluid, were developed as potential replacements. However, the chemical and physical properties of both fluids are significantly different from those of conventional fluids. This paper outlines a laboratory study to define the interrelated parameters of degradation and wear of contacts lubricated with various hydraulic fluids, with particular reference to CTFE. The results rank the likely wear, corrosiveness, and oxidation properties of CTFE in comparison to currently used silicone-, PAO-, and petroleum-based fluids. In general, the antiwear characteristics of the CTFE hydraulic fluid were found to be similar to those of petroleum-based fluids but marginally inferior to those of PAO-based fluids. However, CTFE produced severe corrosion of brass at temperatures above approximately 135¿̐ưC. As a result, it is believed that operation at very high temperatures is likely to cause unacceptable material removal from copper-based metals. Several surface treatment processes were identified to minimize potential side effects, evident under more severe operating conditions with CTFE.
Dates of Publication and/or Sequential Designation
Volume 1997, Issue 1310 (January 1997)
Subject(s)
Other Subject(s)
ISBN
9780803153660 (e-ISBN)
9780803124226
0803124228
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 15.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1997. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
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