Surface Deoxidation Mechanism during Vacuum Heat Treatment of Stainless Steels AISI 304 and 446

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Cornelia Strauß
  • Lienhard Wegewitz
  • Simon Schöler
  • Ulrich Holländer
  • Kai Möhwald
  • Wolfgang Maus-Friedrichs

Organisationseinheiten

Externe Organisationen

  • Technische Universität Clausthal
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer1900568
FachzeitschriftSteel Research International
Jahrgang91
Ausgabenummer4
Frühes Online-Datum4 Jan. 2020
PublikationsstatusVeröffentlicht - 30 März 2020

Abstract

A process of removal of surface oxides from stainless steels AISI 304 and 446 that involves reduction by residual carbon, followed by the formation and desorption of carbon monoxide, is studied by investigation of thermal desorption with quadrupole mass spectrometry (QMS) and secondary ion mass spectrometry (SIMS). Carbon monoxide desorption is studied as a function of time and temperature by QMS, and carbon diffusion due to heat treatment is studied with SIMS—twice as much carbon monoxide desorbs from AISI 304 overall and desorption sets in at 900 °C as opposed to 1100 °C for AISI 446. In samples heated to 900 °C, carbon shows surface enrichment in AISI 304 but depletion in AISI 446.

ASJC Scopus Sachgebiete

Zitieren

Surface Deoxidation Mechanism during Vacuum Heat Treatment of Stainless Steels AISI 304 and 446. / Strauß, Cornelia; Wegewitz, Lienhard; Schöler, Simon et al.
in: Steel Research International, Jahrgang 91, Nr. 4, 1900568, 30.03.2020.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Strauß C, Wegewitz L, Schöler S, Holländer U, Möhwald K, Maus-Friedrichs W. Surface Deoxidation Mechanism during Vacuum Heat Treatment of Stainless Steels AISI 304 and 446. Steel Research International. 2020 Mär 30;91(4):1900568. Epub 2020 Jan 4. doi: 10.1002/srin.201900568
Strauß, Cornelia ; Wegewitz, Lienhard ; Schöler, Simon et al. / Surface Deoxidation Mechanism during Vacuum Heat Treatment of Stainless Steels AISI 304 and 446. in: Steel Research International. 2020 ; Jahrgang 91, Nr. 4.
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abstract = "A process of removal of surface oxides from stainless steels AISI 304 and 446 that involves reduction by residual carbon, followed by the formation and desorption of carbon monoxide, is studied by investigation of thermal desorption with quadrupole mass spectrometry (QMS) and secondary ion mass spectrometry (SIMS). Carbon monoxide desorption is studied as a function of time and temperature by QMS, and carbon diffusion due to heat treatment is studied with SIMS—twice as much carbon monoxide desorbs from AISI 304 overall and desorption sets in at 900 °C as opposed to 1100 °C for AISI 446. In samples heated to 900 °C, carbon shows surface enrichment in AISI 304 but depletion in AISI 446.",
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T1 - Surface Deoxidation Mechanism during Vacuum Heat Treatment of Stainless Steels AISI 304 and 446

AU - Strauß, Cornelia

AU - Wegewitz, Lienhard

AU - Schöler, Simon

AU - Holländer, Ulrich

AU - Möhwald, Kai

AU - Maus-Friedrichs, Wolfgang

N1 - Funding Information: The authors would like to thank Michal Schultz for SIMS measurements and the German Research Foundation (DFG) for financial support (grant nos. MA 1893/24‐1 and MO 881/22‐1).

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AB - A process of removal of surface oxides from stainless steels AISI 304 and 446 that involves reduction by residual carbon, followed by the formation and desorption of carbon monoxide, is studied by investigation of thermal desorption with quadrupole mass spectrometry (QMS) and secondary ion mass spectrometry (SIMS). Carbon monoxide desorption is studied as a function of time and temperature by QMS, and carbon diffusion due to heat treatment is studied with SIMS—twice as much carbon monoxide desorbs from AISI 304 overall and desorption sets in at 900 °C as opposed to 1100 °C for AISI 446. In samples heated to 900 °C, carbon shows surface enrichment in AISI 304 but depletion in AISI 446.

KW - stainless steels

KW - surface deoxidation

KW - surface oxide removal

KW - vacuum brazing

KW - wetting

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DO - 10.1002/srin.201900568

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AN - SCOPUS:85078664984

VL - 91

JO - Steel Research International

JF - Steel Research International

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