Microstructural and mechanical characterization of ODS alloy produced by surface oxidation method

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Oxide dispersion strengthened steel was manufactured utilizing gas atomization processing from alloyed Cr-steel powder. Investigated material represents results on utilization of the processing route, which does not require mechanical alloying step, as high oxygen affinity elements are used. The surface oxidation of the powder particles and HIP consolidation of this precursor powder were investigated. The effect of hot working to the microstructure and mechanical properties were studied. High degree of hot working resulted in finer grain size than as-HIPed steel, without visible prior grain boundaries and with a uniform yttrium oxide dispersoids distribution. Results for small punch tests are also presented.
Original languageEnglish
Title of host publicationEuro PM2017 Proceedings USB
PublisherEuropean Power Metallurgy Association EPMA
Number of pages6
ISBN (Electronic)978-1-899072-49-1
Publication statusPublished - 1 Jan 2017
MoE publication typeA4 Article in a conference publication
EventEuroPM 2017 Congress and Exhibition - Milan, Italy
Duration: 1 Oct 20175 Oct 2017

Conference

ConferenceEuroPM 2017 Congress and Exhibition
CountryItaly
CityMilan
Period1/10/175/10/17

Fingerprint

Steel
Powders
hot working
Hot working
steels
Oxidation
oxidation
gas atomization
yttrium oxides
hot isostatic pressing
punches
Yttrium oxide
Hot isostatic pressing
consolidation
Mechanical alloying
Atomization
Processing
Chemical elements
Consolidation
Oxides

Keywords

  • ODS
  • oxide dispersion strenghtened steel
  • mechanical properties
  • properpart

Cite this

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title = "Microstructural and mechanical characterization of ODS alloy produced by surface oxidation method",
abstract = "Oxide dispersion strengthened steel was manufactured utilizing gas atomization processing from alloyed Cr-steel powder. Investigated material represents results on utilization of the processing route, which does not require mechanical alloying step, as high oxygen affinity elements are used. The surface oxidation of the powder particles and HIP consolidation of this precursor powder were investigated. The effect of hot working to the microstructure and mechanical properties were studied. High degree of hot working resulted in finer grain size than as-HIPed steel, without visible prior grain boundaries and with a uniform yttrium oxide dispersoids distribution. Results for small punch tests are also presented.",
keywords = "ODS, oxide dispersion strenghtened steel, mechanical properties, properpart",
author = "Juha Lagerbom and Tomi Lindroos and Mykola Ivanchenko and Jarkko Mets{\"a}joki and Maria Oksa and Juhani Rantala",
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Lagerbom, J, Lindroos, T, Ivanchenko, M, Metsäjoki, J, Oksa, M & Rantala, J 2017, Microstructural and mechanical characterization of ODS alloy produced by surface oxidation method. in Euro PM2017 Proceedings USB. European Power Metallurgy Association EPMA, EuroPM 2017 Congress and Exhibition, Milan, Italy, 1/10/17.

Microstructural and mechanical characterization of ODS alloy produced by surface oxidation method. / Lagerbom, Juha; Lindroos, Tomi; Ivanchenko, Mykola; Metsäjoki, Jarkko; Oksa, Maria; Rantala, Juhani.

Euro PM2017 Proceedings USB. European Power Metallurgy Association EPMA, 2017.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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