Copper-precipitation hardening in a non-ferromagnetic face-centered cubic austenitic steel

Dieter Isheim; Semyon Vaynman; Morris E. Fine; David N. Seidman

doi:10.1016/j.scriptamat.2008.07.045

Copper-precipitation hardening in a non-ferromagnetic face-centered cubic austenitic steel

Dieter Isheim^*, Semyon Vaynman, Morris E. Fine, David N. Seidman

^*Corresponding author for this work

Materials Science and Engineering

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

43 Scopus citations

Abstract

Copper additions are utilized for precipitation hardening of a non-ferromagnetic austenitic face-centered cubic (fcc) steel. Additions of up to 25 wt.% Mn, 15 wt.% Ni, 6 wt.% Cu, and 0.6 wt.% C are found to stabilize austenite sufficiently to prevent transformation to either α′- or ε-martensite upon heavy mechanical deformation up to 75% reduction in thickness, with the alloys remaining paramagnetic. Mechanical properties are characterized and the tensile strength (447 MPa) is correlated with copper-precipitation as revealed directly by local-electrode atom-probe tomography.

Original language	English (US)
Pages (from-to)	1235-1238
Number of pages	4
Journal	Scripta Materialia
Volume	59
Issue number	12
DOIs	https://doi.org/10.1016/j.scriptamat.2008.07.045
State	Published - Dec 2008

Keywords

Atom-probe tomography
Copper-precipitation
Non-ferromagnetic fcc austenitic Steels
Precipitation hardening

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2008.07.045

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title = "Copper-precipitation hardening in a non-ferromagnetic face-centered cubic austenitic steel",

abstract = "Copper additions are utilized for precipitation hardening of a non-ferromagnetic austenitic face-centered cubic (fcc) steel. Additions of up to 25 wt.% Mn, 15 wt.% Ni, 6 wt.% Cu, and 0.6 wt.% C are found to stabilize austenite sufficiently to prevent transformation to either α′- or ε-martensite upon heavy mechanical deformation up to 75% reduction in thickness, with the alloys remaining paramagnetic. Mechanical properties are characterized and the tensile strength (447 MPa) is correlated with copper-precipitation as revealed directly by local-electrode atom-probe tomography.",

keywords = "Atom-probe tomography, Copper-precipitation, Non-ferromagnetic fcc austenitic Steels, Precipitation hardening",

author = "Dieter Isheim and Semyon Vaynman and Fine, {Morris E.} and Seidman, {David N.}",

note = "Funding Information: This research is supported by the Office of Naval Research (Grant No. N00014-06-1-0242, Dr. Julie Christodoulou, grant officer). Atom-probe tomographic analyses were performed at the Northwestern University Center for Atom-Probe Tomography (NUCAPT), and a LEAP tomograph purchased with funding from the NSF-MRI (Grant No. DMR-0420532, Dr. Charles Bouldin, monitor) and ONR-DURIP (Grant No. N00014-0400798, Dr. Julie Christodoulou, monitor) programs. Additionally, the LEAP tomograph was enhanced in April 2006 with a picosecond laser with funding from ONR-DURIP (Grant No. N0014-06-1-0539). This research made use of Central Facilities supported by the MRSEC program of the National Science Foundation (Grant No. DMR-0520513) at the Materials Research Center of Northwestern University.",

year = "2008",

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doi = "10.1016/j.scriptamat.2008.07.045",

language = "English (US)",

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pages = "1235--1238",

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AU - Isheim, Dieter

AU - Vaynman, Semyon

AU - Fine, Morris E.

AU - Seidman, David N.

N1 - Funding Information: This research is supported by the Office of Naval Research (Grant No. N00014-06-1-0242, Dr. Julie Christodoulou, grant officer). Atom-probe tomographic analyses were performed at the Northwestern University Center for Atom-Probe Tomography (NUCAPT), and a LEAP tomograph purchased with funding from the NSF-MRI (Grant No. DMR-0420532, Dr. Charles Bouldin, monitor) and ONR-DURIP (Grant No. N00014-0400798, Dr. Julie Christodoulou, monitor) programs. Additionally, the LEAP tomograph was enhanced in April 2006 with a picosecond laser with funding from ONR-DURIP (Grant No. N0014-06-1-0539). This research made use of Central Facilities supported by the MRSEC program of the National Science Foundation (Grant No. DMR-0520513) at the Materials Research Center of Northwestern University.

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N2 - Copper additions are utilized for precipitation hardening of a non-ferromagnetic austenitic face-centered cubic (fcc) steel. Additions of up to 25 wt.% Mn, 15 wt.% Ni, 6 wt.% Cu, and 0.6 wt.% C are found to stabilize austenite sufficiently to prevent transformation to either α′- or ε-martensite upon heavy mechanical deformation up to 75% reduction in thickness, with the alloys remaining paramagnetic. Mechanical properties are characterized and the tensile strength (447 MPa) is correlated with copper-precipitation as revealed directly by local-electrode atom-probe tomography.

AB - Copper additions are utilized for precipitation hardening of a non-ferromagnetic austenitic face-centered cubic (fcc) steel. Additions of up to 25 wt.% Mn, 15 wt.% Ni, 6 wt.% Cu, and 0.6 wt.% C are found to stabilize austenite sufficiently to prevent transformation to either α′- or ε-martensite upon heavy mechanical deformation up to 75% reduction in thickness, with the alloys remaining paramagnetic. Mechanical properties are characterized and the tensile strength (447 MPa) is correlated with copper-precipitation as revealed directly by local-electrode atom-probe tomography.

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Copper-precipitation hardening in a non-ferromagnetic face-centered cubic austenitic steel

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