SYMPOSIA PAPER Published: 28 November 2014
STP158020140077

Novel High-Carbon High-Vanadium PM Steel for High-Load Rolling Bearing Applications

Source

The present work describes a novel 2.4 wt. % carbon high-vanadium powder metallurgy (PM) steel that was transformed into bainite and tempered martensite, resulting in structures with very high hardness. The alloy design and the underlying heat treatment concepts are presented with the aim of tailoring the structure to suit very demanding rolling bearing applications such as in aeroengine bearings and auto sports. In the as-hardened condition, the observed very high hardness somewhat contrasts with the modest alloying of the steel alloy, as well as the not so high austenitization temperatures that were used. Consequently, an attempt was made to characterize the structures using transmission electron microscopy in order to identify a possible mechanism, or explanation, for the observed high hardness. On the basis of the results obtained so far, future work is proposed.

Author Information

Sherif, Mohamed, Y.
SKF Engineering & Research Centre, Nieuwegein, NL
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: A01
Pages: 1–21
DOI: 10.1520/STP158020140077
ISBN-EB: 978-0-8031-7606-5
ISBN-13: 978-0-8031-7605-8