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ASTM Selected Technical Papers
Bearing and Transmission Steels Technology
Editor
John Beswick
John Beswick
Symposium Chair and STP Editor
1Montfoort,
SE
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ISBN:
978-0-8031-7745-1
No. of Pages:
558
Publisher:
ASTM International
Publication date:
2024

A novel steel called Arctic 15 has been developed to achieve the increased speed and load demands for hybrid bearings of very high bypass ratio (VHBR) aero-engines. The characteristics of Arctic 15 have been determined, including the structural fatigue resistance and the corrosion resistance. The rolling contact fatigue performance of carburized Arctic 15 has been determined in endurance life tests on angular contact ball bearings. The microstructure response of Arctic 15 to rolling contact fatigue has been characterized using light optical microscopy and x-ray diffraction. This paper describes the test results in detail and gives an outline regarding the future development of the Arctic 15 concept.

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