Multiple dispersed phases in a high-strength low-carbon steel: An atom-probe tomographic and synchrotron X-ray diffraction study

Michael D. Mulholland; David N. Seidman

doi:10.1016/j.scriptamat.2009.02.033

Multiple dispersed phases in a high-strength low-carbon steel: An atom-probe tomographic and synchrotron X-ray diffraction study

Michael D. Mulholland^*, David N. Seidman

^*Corresponding author for this work

Materials Science and Engineering

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

22 Scopus citations

Abstract

The co-precipitation of Cu, M₂C (where M is any combination of Cr, Mo or Ti) and austenite (face-centered cubic) is characterized for 5 h isochronal aging times by synchrotron X-ray diffraction and three-dimensional atom-probe tomography for a high-strength low-carbon steel, BlastAlloy 160. High number densities, ∼10²³ m^-3, of co-located Cu and M₂C precipitates were observed. Only small austenite volume percentages (<2.1%) were measured after aging at temperatures up to 625 °C for 5 h.

Original language	English (US)
Pages (from-to)	992-995
Number of pages	4
Journal	Scripta Materialia
Volume	60
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2009.02.033
State	Published - Jun 2009

Keywords

Copper precipitation
Steels
Three-dimensional atom probe (3DAP)

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2009.02.033

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title = "Multiple dispersed phases in a high-strength low-carbon steel: An atom-probe tomographic and synchrotron X-ray diffraction study",

abstract = "The co-precipitation of Cu, M2C (where M is any combination of Cr, Mo or Ti) and austenite (face-centered cubic) is characterized for 5 h isochronal aging times by synchrotron X-ray diffraction and three-dimensional atom-probe tomography for a high-strength low-carbon steel, BlastAlloy 160. High number densities, ∼1023 m-3, of co-located Cu and M2C precipitates were observed. Only small austenite volume percentages (<2.1%) were measured after aging at temperatures up to 625 °C for 5 h.",

keywords = "Copper precipitation, Steels, Three-dimensional atom probe (3DAP)",

author = "Mulholland, {Michael D.} and Seidman, {David N.}",

note = "Funding Information: This research was supported by the ONR and DARPA; J. Christodoulou, grant officer. A portion of this work was performed at the DuPont–Northwestern–Dow Collaborative Access Team Synchrotron Research Center at the Advanced Photon Source. Dr. D.T. Keane is thanked for his help. APT analyses were performed at the Northwestern University Center for Atom-Probe Tomography. The LEAP tomograph was purchased with funding from the NSF-MRI and ONR-DURIP programs. Dr. D. Isheim is thanked for managing NUCAPT and Prof. G.B. Olson is thanked for stimulating discussions. ",

year = "2009",

month = jun,

doi = "10.1016/j.scriptamat.2009.02.033",

language = "English (US)",

volume = "60",

pages = "992--995",

journal = "Scripta Materialia",

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publisher = "Acta Materialia Inc",

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T1 - Multiple dispersed phases in a high-strength low-carbon steel

T2 - An atom-probe tomographic and synchrotron X-ray diffraction study

AU - Mulholland, Michael D.

AU - Seidman, David N.

N1 - Funding Information: This research was supported by the ONR and DARPA; J. Christodoulou, grant officer. A portion of this work was performed at the DuPont–Northwestern–Dow Collaborative Access Team Synchrotron Research Center at the Advanced Photon Source. Dr. D.T. Keane is thanked for his help. APT analyses were performed at the Northwestern University Center for Atom-Probe Tomography. The LEAP tomograph was purchased with funding from the NSF-MRI and ONR-DURIP programs. Dr. D. Isheim is thanked for managing NUCAPT and Prof. G.B. Olson is thanked for stimulating discussions.

PY - 2009/6

Y1 - 2009/6

N2 - The co-precipitation of Cu, M2C (where M is any combination of Cr, Mo or Ti) and austenite (face-centered cubic) is characterized for 5 h isochronal aging times by synchrotron X-ray diffraction and three-dimensional atom-probe tomography for a high-strength low-carbon steel, BlastAlloy 160. High number densities, ∼1023 m-3, of co-located Cu and M2C precipitates were observed. Only small austenite volume percentages (<2.1%) were measured after aging at temperatures up to 625 °C for 5 h.

AB - The co-precipitation of Cu, M2C (where M is any combination of Cr, Mo or Ti) and austenite (face-centered cubic) is characterized for 5 h isochronal aging times by synchrotron X-ray diffraction and three-dimensional atom-probe tomography for a high-strength low-carbon steel, BlastAlloy 160. High number densities, ∼1023 m-3, of co-located Cu and M2C precipitates were observed. Only small austenite volume percentages (<2.1%) were measured after aging at temperatures up to 625 °C for 5 h.

KW - Copper precipitation

KW - Steels

KW - Three-dimensional atom probe (3DAP)

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SN - 1359-6462

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SP - 992

EP - 995

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Multiple dispersed phases in a high-strength low-carbon steel: An atom-probe tomographic and synchrotron X-ray diffraction study

Abstract

Keywords

ASJC Scopus subject areas

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