Transcription of The “Quenching and Partitioning” Process: …
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The “Quenching and Partitioning” Process: …
Materials Research, Vol. 8, No. 4, 417-423, 2005 2005. The quenching and partitioning process : background and Recent Progress John G. Speera, Fernando C. Rizzo Assun ob*, David K. Matlocka, David V. Edmondsc Advanced Steel Processing and Products Research center , a Colorado School of Mines, Golden, CO 80401, USA. b Department of Materials Science and Metallurgy, Pontif cia Universidad Cat lica, 22453-900 Rio de Janeiro - RJ, Brazil c School of process , Environmental and Materials Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom Received: July 19, 2004; Revised: April 8, 2005. A new process concept, quenching and partitioning (Q&P) has been proposed recently for creating steel microstructures with retained austenite. The process involves quenching austenite below the martensite- start temperature, followed by a partitioning treatment to enrich the remaining austenite with carbon, thereby stabilizing it to room temperature.
Vol. 8, No 4, 2005 The “Quenching and Partitioning” Process: Background and Recent Progress 419 partitioning, or Q&P, to distinguish it mechanistically from conven-
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