Development of porosity in an oxide dispersion-strengthened ferritic alloy containing nanoscale oxide particles

J. H. Schneibel; C. T. Liu; D. T. Hoelzer; M. J. Mills; P. Sarosi; T. Hayashi; U. Wendt; H. Heyse

doi:10.1016/j.scriptamat.2007.07.029

Development of porosity in an oxide dispersion-strengthened ferritic alloy containing nanoscale oxide particles

J. H. Schneibel, C. T. Liu, D. T. Hoelzer, M. J. Mills, P. Sarosi, T. Hayashi, U. Wendt, H. Heyse

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

44 Citations (Scopus)

Abstract

The development of porosity at 1000 °C in an oxide dispersion-strengthened ferritic alloy containing nanoscale (∼2-4 nm) oxide particles is investigated. A comparison with an alloy fabricated by internal oxidation instead of mechanical alloying demonstrates that the porosity formation is associated with mechanical alloying of the alloy powder with Y₂O₃ in argon. The pores grow in spite of a submicron grain size suggesting that the grain boundaries are not effective paths for removing entrapped gas from the pores. © 2007 Acta Materialia Inc.

Original language	English
Pages (from-to)	1040-1043
Journal	Scripta Materialia
Volume	57
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2007.07.029
Publication status	Published - Dec 2007
Externally published	Yes

Research Keywords

High temperature deformation
Mechanical alloying
Oxide dispersion strengthening
Porosity
Steels

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10.1016/j.scriptamat.2007.07.029

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title = "Development of porosity in an oxide dispersion-strengthened ferritic alloy containing nanoscale oxide particles",

abstract = "The development of porosity at 1000 °C in an oxide dispersion-strengthened ferritic alloy containing nanoscale (∼2-4 nm) oxide particles is investigated. A comparison with an alloy fabricated by internal oxidation instead of mechanical alloying demonstrates that the porosity formation is associated with mechanical alloying of the alloy powder with Y2O3 in argon. The pores grow in spite of a submicron grain size suggesting that the grain boundaries are not effective paths for removing entrapped gas from the pores. {\textcopyright} 2007 Acta Materialia Inc.",

keywords = "High temperature deformation, Mechanical alloying, Oxide dispersion strengthening, Porosity, Steels",

author = "Schneibel, {J. H.} and Liu, {C. T.} and Hoelzer, {D. T.} and Mills, {M. J.} and P. Sarosi and T. Hayashi and U. Wendt and H. Heyse",

year = "2007",

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doi = "10.1016/j.scriptamat.2007.07.029",

language = "English",

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T1 - Development of porosity in an oxide dispersion-strengthened ferritic alloy containing nanoscale oxide particles

AU - Schneibel, J. H.

AU - Liu, C. T.

AU - Hoelzer, D. T.

AU - Mills, M. J.

AU - Sarosi, P.

AU - Hayashi, T.

AU - Wendt, U.

AU - Heyse, H.

PY - 2007/12

Y1 - 2007/12

N2 - The development of porosity at 1000 °C in an oxide dispersion-strengthened ferritic alloy containing nanoscale (∼2-4 nm) oxide particles is investigated. A comparison with an alloy fabricated by internal oxidation instead of mechanical alloying demonstrates that the porosity formation is associated with mechanical alloying of the alloy powder with Y2O3 in argon. The pores grow in spite of a submicron grain size suggesting that the grain boundaries are not effective paths for removing entrapped gas from the pores. © 2007 Acta Materialia Inc.

AB - The development of porosity at 1000 °C in an oxide dispersion-strengthened ferritic alloy containing nanoscale (∼2-4 nm) oxide particles is investigated. A comparison with an alloy fabricated by internal oxidation instead of mechanical alloying demonstrates that the porosity formation is associated with mechanical alloying of the alloy powder with Y2O3 in argon. The pores grow in spite of a submicron grain size suggesting that the grain boundaries are not effective paths for removing entrapped gas from the pores. © 2007 Acta Materialia Inc.

KW - High temperature deformation

KW - Mechanical alloying

KW - Oxide dispersion strengthening

KW - Porosity

KW - Steels

UR - http://www.scopus.com/inward/record.url?scp=34548479522&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-34548479522&origin=recordpage

U2 - 10.1016/j.scriptamat.2007.07.029

DO - 10.1016/j.scriptamat.2007.07.029

M3 - RGC 21 - Publication in refereed journal

SN - 1359-6462

VL - 57

SP - 1040

EP - 1043

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Development of porosity in an oxide dispersion-strengthened ferritic alloy containing nanoscale oxide particles

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