Copper precipitation in cobalt-alloyed precipitation-hardened stainless steel

Arpana S. Murthy; Julia E. Medvedeva; Dieter Isheim; Simon L. Lekakh; Von L. Richards; David C. Van Aken

doi:10.1016/j.scriptamat.2012.02.039

Copper precipitation in cobalt-alloyed precipitation-hardened stainless steel

Arpana S. Murthy^*, Julia E. Medvedeva, Dieter Isheim, Simon L. Lekakh, Von L. Richards, David C. Van Aken

^*Corresponding author for this work

Materials Science and Engineering

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

38 Scopus citations

Abstract

The influence of cobalt addition on precipitation of copper in a high-strength stainless steel was investigated using three-dimensional atom probe tomography. A decrease in copper precipitate size with narrowed distribution was observed in cobalt-containing steel. The concentration profile across the precipitate-matrix interface indicated rejection of cobalt atoms from the copper precipitates. This behavior was explained with first-principles calculations using energy-minimization criterion.

Original language	English (US)
Pages (from-to)	943-946
Number of pages	4
Journal	Scripta Materialia
Volume	66
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2012.02.039
State	Published - Jun 2012

Keywords

3DAP
Casting
First-principle electron theory
Precipitation
Stainless steels

ASJC Scopus subject areas

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

Access to Document

10.1016/j.scriptamat.2012.02.039

Cite this

@article{8c7617f6d44e44b7b8616f651e3346b7,

title = "Copper precipitation in cobalt-alloyed precipitation-hardened stainless steel",

abstract = "The influence of cobalt addition on precipitation of copper in a high-strength stainless steel was investigated using three-dimensional atom probe tomography. A decrease in copper precipitate size with narrowed distribution was observed in cobalt-containing steel. The concentration profile across the precipitate-matrix interface indicated rejection of cobalt atoms from the copper precipitates. This behavior was explained with first-principles calculations using energy-minimization criterion.",

keywords = "3DAP, Casting, First-principle electron theory, Precipitation, Stainless steels",

author = "Murthy, {Arpana S.} and Medvedeva, {Julia E.} and Dieter Isheim and Lekakh, {Simon L.} and Richards, {Von L.} and {Van Aken}, {David C.}",

note = "Funding Information: The authors would like to thank Benet Laboratories for funding this work and NUCAPT facility at Northwestern University for the local electrode atom probe work. Copyright: Copyright 2012 Elsevier B.V., All rights reserved.",

year = "2012",

month = jun,

doi = "10.1016/j.scriptamat.2012.02.039",

language = "English (US)",

volume = "66",

pages = "943--946",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

number = "11",

}

TY - JOUR

T1 - Copper precipitation in cobalt-alloyed precipitation-hardened stainless steel

AU - Murthy, Arpana S.

AU - Medvedeva, Julia E.

AU - Isheim, Dieter

AU - Lekakh, Simon L.

AU - Richards, Von L.

AU - Van Aken, David C.

N1 - Funding Information: The authors would like to thank Benet Laboratories for funding this work and NUCAPT facility at Northwestern University for the local electrode atom probe work. Copyright: Copyright 2012 Elsevier B.V., All rights reserved.

PY - 2012/6

Y1 - 2012/6

N2 - The influence of cobalt addition on precipitation of copper in a high-strength stainless steel was investigated using three-dimensional atom probe tomography. A decrease in copper precipitate size with narrowed distribution was observed in cobalt-containing steel. The concentration profile across the precipitate-matrix interface indicated rejection of cobalt atoms from the copper precipitates. This behavior was explained with first-principles calculations using energy-minimization criterion.

AB - The influence of cobalt addition on precipitation of copper in a high-strength stainless steel was investigated using three-dimensional atom probe tomography. A decrease in copper precipitate size with narrowed distribution was observed in cobalt-containing steel. The concentration profile across the precipitate-matrix interface indicated rejection of cobalt atoms from the copper precipitates. This behavior was explained with first-principles calculations using energy-minimization criterion.

KW - 3DAP

KW - Casting

KW - First-principle electron theory

KW - Precipitation

KW - Stainless steels

UR - http://www.scopus.com/inward/record.url?scp=84859758586&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859758586&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2012.02.039

DO - 10.1016/j.scriptamat.2012.02.039

M3 - Article

AN - SCOPUS:84859758586

SN - 1359-6462

VL - 66

SP - 943

EP - 946

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Copper precipitation in cobalt-alloyed precipitation-hardened stainless steel

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this