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The Influence of External Stresses on the Transformation Behaviour in a Fe-Mn-Si Alloy
KTH, Superseded Departments, Materials Science and Engineering.
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0002-4521-6089
1997 (English)In: Journal de Physique IV: Colloque, ISSN 1155-4339, E-ISSN 1764-7177, Vol. 7, no C5, 411-416 p.Article in journal (Refereed) Published
Abstract [en]

The influence of external stresses on the transformation behaviour has been studied for a polycrystalline Fe-3 IMn-SSi alloy exhibiting the y-+& martensitic transformation. Samples have been loaded at temperatures above the M, temperature, cooled with a constant external load to a temperature below the M, temperature and subsequently heated without load to a temperature above the A, temperature of the alloy. Stress, strain and temperature have been continuously measured and transformation temperatures and strains have been determined from the change in strain during the transformation. It has been found that the M, temperature during cooling with load is not influenced by 0.3-2 % plastic pre-deformation of the austenite whereas there is a substantial increase in the transformation strain, i.e. variants with a favourable orientation are enhanced by pre-strain of austenite.

Place, publisher, year, edition, pages
1997. Vol. 7, no C5, 411-416 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-12386ISI: 000072520300066OAI: oai:DiVA.org:kth-12386DiVA: diva2:310621
Note
QC 20100415Available from: 2010-04-15 Created: 2010-04-15 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Thermal and stress induced gamma to epsilon martensitic transformations in Fe-Mn-Si shape memory alloys
Open this publication in new window or tab >>Thermal and stress induced gamma to epsilon martensitic transformations in Fe-Mn-Si shape memory alloys
1997 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 1997. 20 p.
Series
TRITA
Keyword
Fe, Mn, Si, Epsilon martensite, Transformation temperatures, Enthalphy, Stress induced, Magnetic transformation, Néel temperature, Shape memory
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-2573 (URN)91-7170-194-X (ISBN)
Public defence
1997-11-07, 00:00 (English)
Note
QC 20100409 NR 20140805Available from: 2000-01-01 Created: 2000-01-01 Last updated: 2011-12-07Bibliographically approved

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