Rev. Met. Paris
Volume 94, Number 7-8, Juillet-Août 1997
|Page(s)||939 - 947|
|Published online||17 January 2017|
Improving properties of spring steels by microalloying and thermomechanical treatment*
Amélioration des propriétés d’aciers à ressort par micro-alliage et traitement thermomécanique
With the conventional manufacturing of leaf springs, the strength is limited to 1750 MPa, because higher strength would lead to poor toughness and thus deteriorated fatigue properties of final springs. By the addition of microalloying elements to conventional Cr-V-steels and using a well aimed thermomechanical treatment strategy, strength values over 2000 MPa were attained without loss of toughness and with improved fatigue properties.
Subject of a presentation at the 1996 ATS International Steelmaking Conference (Paris, 11-12 December, 1996, Session 5).
The work has financially been supported by the Bundesministerium für Wirtschaft of the Bundesrepublik Deutschland (AIF-contract No. 8979). The authors would like to express their thanks for this help. The authors are also grateful to the “Verband der Deutschen Federnindustrie” for constructive discussions and practical support.
© La Revue de Métallurgie 1997
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