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On the mechanism of austenite formation during inter-nd subcritical annealing of a C-Mn steel
Luleå tekniska universitet.
Luleå tekniska universitet.
1984 (English)In: Scripta Metallurgica, ISSN 0036-9748, Vol. 18, no 6, p. 605-610Article in journal (Refereed) Published
Abstract [en]

Austenite formation in low carbon-manganese steels upon intercritical annealing proceeds by nucleation and growth of the manganese-enriched phase accompanied by concurrent dissolution of the manganese-lean high-carbon austenite transformed from pearlite. When the annealing temperature is below the A 1 for the nominal Mn content, the austenite forms in the same way while pearlitic carbide dissolves. The rate controlling mechanism is the diffusion of manganese in ferrite, and it is likely that volume, grain-boundary as well as phase-boundary diffusion contribute to growth. The manganese content of the isothermally formed austenite is temperature dependent in an inverse way, rendering a high hardenability to steels treated at and below 725 degree C

Place, publisher, year, edition, pages
1984. Vol. 18, no 6, p. 605-610
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-5046DOI: 10.1016/0036-9748(84)90350-8ISI: A1984SU79600013Scopus ID: 2-s2.0-0021441980Local ID: 31070bd0-ec26-11dc-9508-000ea68e967bOAI: oai:DiVA.org:ltu-5046DiVA, id: diva2:977920
Note

Godkänd; 1984; 20080307 (cira)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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