Quenched and Partitioned CMnSi Steels Containing 0.3 wt.% and 0.4 wt.% Carbon

J. Kähkönen; D. T. Pierce; J. G. Speer; E. De Moor; G. A. Thomas; D. Coughlin; K. Clarke; A. Clarke

doi:10.1007/s11837-015-1620-4

Quenched and Partitioned CMnSi Steels Containing 0.3 wt.% and 0.4 wt.% Carbon

J. Kähkönen, D. T. Pierce, J. G. Speer, E. De Moor, G. A. Thomas, D. Coughlin, K. Clarke, A. Clarke

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

The effect of partitioning parameters on mechanical properties and carbon partitioning in quenching and partitioning (Q&P)-treated C-1.5Mn-1.5Si steels was studied using 0.3 wt.% and 0.4 wt.% carbon compositions. Fully austenitized specimens were quenched to a fixed quenching temperature followed by partitioning at 400°C and 450°C for varying times. In most cases, increasing the partitioning temperature decreased UTS and increased TE, and both UTS and TE decreased with increasing partitioning times. Similar ultimate tensile strength levels were obtained for the 0.3C alloy partitioned at 400°C and the 0.4C alloy partitioned at 450°C. Increasing alloy carbon content increased retained austenite fractions. Mössbauer effect spectroscopy results were used to investigate carbon redistribution after Q&P processing in the 0.4C alloy.

Original language	English
Pages (from-to)	210-214
Number of pages	5
Journal	JOM
Volume	68
Issue number	1
DOIs	https://doi.org/10.1007/s11837-015-1620-4
State	Published - Jan 1 2016
Externally published	Yes

Funding

This material is based upon work supported by the Department of Energy Advanced Manufacturing Office under Award Number DE-EE0005765. The support of the sponsors of the Advanced Steel Processing and Products Research Center, an industry-university cooperative research center at the Colorado School of Mines is gratefully acknowledged.

Funders	Funder number
Department of Energy Advanced Manufacturing Office	DE-EE0005765

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title = "Quenched and Partitioned CMnSi Steels Containing 0.3 wt.% and 0.4 wt.% Carbon",

abstract = "The effect of partitioning parameters on mechanical properties and carbon partitioning in quenching and partitioning (Q&P)-treated C-1.5Mn-1.5Si steels was studied using 0.3 wt.% and 0.4 wt.% carbon compositions. Fully austenitized specimens were quenched to a fixed quenching temperature followed by partitioning at 400°C and 450°C for varying times. In most cases, increasing the partitioning temperature decreased UTS and increased TE, and both UTS and TE decreased with increasing partitioning times. Similar ultimate tensile strength levels were obtained for the 0.3C alloy partitioned at 400°C and the 0.4C alloy partitioned at 450°C. Increasing alloy carbon content increased retained austenite fractions. M{\"o}ssbauer effect spectroscopy results were used to investigate carbon redistribution after Q&P processing in the 0.4C alloy.",

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AU - Kähkönen, J.

AU - Pierce, D. T.

AU - Speer, J. G.

AU - De Moor, E.

AU - Thomas, G. A.

AU - Coughlin, D.

AU - Clarke, K.

AU - Clarke, A.

PY - 2016/1/1

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N2 - The effect of partitioning parameters on mechanical properties and carbon partitioning in quenching and partitioning (Q&P)-treated C-1.5Mn-1.5Si steels was studied using 0.3 wt.% and 0.4 wt.% carbon compositions. Fully austenitized specimens were quenched to a fixed quenching temperature followed by partitioning at 400°C and 450°C for varying times. In most cases, increasing the partitioning temperature decreased UTS and increased TE, and both UTS and TE decreased with increasing partitioning times. Similar ultimate tensile strength levels were obtained for the 0.3C alloy partitioned at 400°C and the 0.4C alloy partitioned at 450°C. Increasing alloy carbon content increased retained austenite fractions. Mössbauer effect spectroscopy results were used to investigate carbon redistribution after Q&P processing in the 0.4C alloy.

AB - The effect of partitioning parameters on mechanical properties and carbon partitioning in quenching and partitioning (Q&P)-treated C-1.5Mn-1.5Si steels was studied using 0.3 wt.% and 0.4 wt.% carbon compositions. Fully austenitized specimens were quenched to a fixed quenching temperature followed by partitioning at 400°C and 450°C for varying times. In most cases, increasing the partitioning temperature decreased UTS and increased TE, and both UTS and TE decreased with increasing partitioning times. Similar ultimate tensile strength levels were obtained for the 0.3C alloy partitioned at 400°C and the 0.4C alloy partitioned at 450°C. Increasing alloy carbon content increased retained austenite fractions. Mössbauer effect spectroscopy results were used to investigate carbon redistribution after Q&P processing in the 0.4C alloy.

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Quenched and Partitioned CMnSi Steels Containing 0.3 wt.% and 0.4 wt.% Carbon

Abstract

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