High-strength steels hardened mainly by nanoscale NiAl precipitates

Zengbao Jiao; J. H. Luan; Z. W. Zhang; M. K. Miller; C. T. Liu

doi:10.1016/j.scriptamat.2014.05.006

High-strength steels hardened mainly by nanoscale NiAl precipitates

Zengbao Jiao, J. H. Luan, Z. W. Zhang, M. K. Miller, C. T. Liu

Research output: Journal article publication › Journal article › Academic research › peer-review

102 Citations (Scopus)

Abstract

NiAl-strengthened high-strength steels usually have high Ni and Al contents in order to form hardening particles. Here, several new low-Ni steels are reported, which achieve a combination of relatively low cost, high strength and good ductility mainly through the precipitation of high number densities of nanoscale NiAl precipitates as characterized by atom probe tomography. The precipitation parameters are tuned by optimizing both alloy compositions and heat-treatment parameters. The strengthening effects of nanoscale NiAl and Mo/W-rich carbides are quantitatively analyzed and assessed.

Original language	English
Pages (from-to)	45-48
Number of pages	4
Journal	Scripta Materialia
Volume	87
DOIs	https://doi.org/10.1016/j.scriptamat.2014.05.006
Publication status	Published - 15 Sept 2014
Externally published	Yes

Keywords

Atom probe tomography
Ferritic steel
Mechanical property
NiAl precipitate
Precipitation

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1016/j.scriptamat.2014.05.006

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title = "High-strength steels hardened mainly by nanoscale NiAl precipitates",

abstract = "NiAl-strengthened high-strength steels usually have high Ni and Al contents in order to form hardening particles. Here, several new low-Ni steels are reported, which achieve a combination of relatively low cost, high strength and good ductility mainly through the precipitation of high number densities of nanoscale NiAl precipitates as characterized by atom probe tomography. The precipitation parameters are tuned by optimizing both alloy compositions and heat-treatment parameters. The strengthening effects of nanoscale NiAl and Mo/W-rich carbides are quantitatively analyzed and assessed.",

keywords = "Atom probe tomography, Ferritic steel, Mechanical property, NiAl precipitate, Precipitation",

author = "Zengbao Jiao and Luan, {J. H.} and Zhang, {Z. W.} and Miller, {M. K.} and Liu, {C. T.}",

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doi = "10.1016/j.scriptamat.2014.05.006",

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T1 - High-strength steels hardened mainly by nanoscale NiAl precipitates

AU - Jiao, Zengbao

AU - Luan, J. H.

AU - Zhang, Z. W.

AU - Miller, M. K.

AU - Liu, C. T.

PY - 2014/9/15

Y1 - 2014/9/15

N2 - NiAl-strengthened high-strength steels usually have high Ni and Al contents in order to form hardening particles. Here, several new low-Ni steels are reported, which achieve a combination of relatively low cost, high strength and good ductility mainly through the precipitation of high number densities of nanoscale NiAl precipitates as characterized by atom probe tomography. The precipitation parameters are tuned by optimizing both alloy compositions and heat-treatment parameters. The strengthening effects of nanoscale NiAl and Mo/W-rich carbides are quantitatively analyzed and assessed.

AB - NiAl-strengthened high-strength steels usually have high Ni and Al contents in order to form hardening particles. Here, several new low-Ni steels are reported, which achieve a combination of relatively low cost, high strength and good ductility mainly through the precipitation of high number densities of nanoscale NiAl precipitates as characterized by atom probe tomography. The precipitation parameters are tuned by optimizing both alloy compositions and heat-treatment parameters. The strengthening effects of nanoscale NiAl and Mo/W-rich carbides are quantitatively analyzed and assessed.

KW - Atom probe tomography

KW - Ferritic steel

KW - Mechanical property

KW - NiAl precipitate

KW - Precipitation

UR - http://www.scopus.com/inward/record.url?scp=84904257106&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2014.05.006

DO - 10.1016/j.scriptamat.2014.05.006

M3 - Journal article

SN - 1359-6462

VL - 87

SP - 45

EP - 48

JO - Scripta Materialia

JF - Scripta Materialia

ER -

High-strength steels hardened mainly by nanoscale NiAl precipitates

Abstract

Keywords

ASJC Scopus subject areas

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