Quench and Partitioning Steel: A New AHSS Concept for Automotive Anti‐Intrusion Applications

Bruno C. De Cooman; John G. Speer

doi:10.1002/srin.200606441

journal article Sep 01, 2006

Quench and Partitioning Steel: A New AHSS Concept for Automotive Anti‐Intrusion Applications

Bruno C. De Cooman John G. Speer

steel research international Vol. 77 No. 9-10 pp. 634-640 · Wiley

View at Publisher Save 10.1002/srin.200606441

Abstract

A new type of high strength, high toughness, martensitic steel, based on a newly proposed Quench and Partitioning (Q&P) process, is presented. This high strength martensitic grade is produced by the controlled low temperature partitioning of carbon from as‐quenched martensite laths to retained inter‐lath austenite under conditions where both low temperature transition carbide formation and cementite precipitation are suppressed. The contribution focuses on both the current understanding of the fundamental processes involved and includes a discussion of the technical feasibility of large‐scale industrial production of these steels as sheet products. The Q&P process, which is carried out on steels with a lean composition, should be implemented easily on some current industrial continuous annealing and galvanizing lines. In addition, martensitic Q&P sheet steel is characterized by very favourable combinations of strength, ductility and toughness, which are particularly relevant for high strength anti‐intrusion automotive parts.

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79

Citations

25

References

Details

Published: Sep 01, 2006
Vol/Issue: 77(9-10)
Pages: 634-640
License: View

Authors

B

Bruno C. De Cooman

Graduate Institute for Ferrous Technology, Pohang University of Science and Technology Pohang South Korea

J

John G. Speer

Advanced Steel Processing and Products Research Centre, Colorado School of Mines Golden Colorado USA

Cite This Article

Bruno C. De Cooman, John G. Speer (2006). Quench and Partitioning Steel: A New AHSS Concept for Automotive Anti‐Intrusion Applications. steel research international, 77(9-10), 634-640. https://doi.org/10.1002/srin.200606441

Quench and Partitioning Steel: A New AHSS Concept for Automotive Anti‐Intrusion Applications

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