Novel Super-Elastic Materials for Advanced Bearing Applications

Christopher Della Corte

doi:10.4028/www.scientific.net/AST.89.1

Paper Titles

Preface

Novel Super-Elastic Materials for Advanced Bearing Applications
p.1

Tribological Behaviour of Ceramic Hip Replacements
p.10

Carbon Based Coatings for Hermetic Compressor Applications
p.21

Effect of Different Form of Carbon Addition on the Wear Behaviour of Copper Based Composites
p.31

Amorphization, Field Activated Sintering and Superplastic Forming of UHTCs
p.37

Nonoxide High-Melting Point Compounds as Materials for Extreme Conditions
p.47

Reaction Bonded Si₃N₄ (RBSN)/BN Composites for Industrial Applications
p.57

Development and Processing of SiAlON Nano-Ceramics by Spark Plasma Sintering
p.63

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 89Novel Super-Elastic Materials for Advanced Bearing...

Novel Super-Elastic Materials for Advanced Bearing Applications

Abstract:

Tribological surfaces of mechanical components encounter harsh conditions in terrestrial, marine and aerospace environments. Brinell denting, abrasive wear and fatigue often lead to life-limiting bearing and gear failures. Novel superelastic materials based upon Nickel-Titanium (NiTi) alloys are an emerging solution. NiTi alloys are intermetallic materials that possess characteristics of both metals and ceramics. NiTi alloys have intrinsically good aqueous corrosion resistance (they cannot rust), high hardness, relatively low elastic modulus, are chemically inert and readily lubricated. NiTi alloys also belong to the family of superelastics and, despite high hardness, are able to withstand large strains without suffering permanent plastic deformation. In this paper, the use of a hard, resilient NiTi alloy for corrosion-proof, shockproof bearing and gear applications is presented. Through a series of bearing and gear development projects, it is demonstrated that NiTi’s unique blend of material properties lead to significantly improved load capacity, reduced weight and intrinsic corrosion resistance not found in any other bearing materials. NiTi thus represents a new materials solution to demanding tribological applications.

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Periodical:

Advances in Science and Technology (Volume 89)

Pages:

1-9

DOI:

https://doi.org/10.4028/www.scientific.net/AST.89.1

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Online since:

October 2014

Authors:

Christopher Della Corte*

Keywords:

Bearings, Intermetallic, Nickel-Titanium, Nitinol, Superelastics, Tribology

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* - Corresponding Author

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