Journal article
MICROSTRUCTURE AND MECHANICAL PROPERTIES OF PM STEELS ALLOYED WITH SILICON AND VANADIUM
International journal of powder metallurgy (1986), Vol.48(6)
01 Nov 2012
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The effects of silicon and vanadium additions on the mechanical properties and microstructures of PM alloy steels have been investigated. It has been demonstrated that the addition of these two elements increases the strength in both the sintered and heat-treated conditions. With a pearlitic microstructure, silicon strengthens the pearlite by solid-solution strengthening of the ferrite while vanadium increases the strength of the pearlite by precipitation hardening of the ferrite. In addition, vanadium limits grain growth during austentitizing prior to oil quenching. By limiting austenite grain growth, the precipitates result in significant improvement in both strength and ductility. The effects of silicon and vanadium on hardenability were investigated by performing Jominy end-quench tests and metallographic analysis. The addition of silicon and vanadium to high-carbon (>0.8 w/o) PM steels suppresses the formation of grain-boundary carbides, which permits carbon levels that are higher than those commonly used for commercial PM applications.
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Details
- Title
- MICROSTRUCTURE AND MECHANICAL PROPERTIES OF PM STEELS ALLOYED WITH SILICON AND VANADIUM
- Creators
- Chris Schade - Hoeganaes Corp, Res & Dev, Cinnaminson, NJ 08077 USATom Murphy - Hoeganaes Corp, Res & Dev, Cinnaminson, NJ 08077 USAAlan Lawley - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USARoger Doherty - Drexel University
- Publication Details
- International journal of powder metallurgy (1986), Vol.48(6)
- Publisher
- Amer Powder Metallurgy Inst
- Number of pages
- 8
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; [Retired Faculty]
- Identifiers
- 991019170361104721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Metallurgy & Metallurgical Engineering