Effect of heat and thermomechanical treatments on the linear thermal expansion coefficient of an N30K10T3 invar

The N30K10T3 invar that has a temperature of the onset of martensite transformation of austenite M s ≈ −80°C and a Curie point θ C ≈ 200°C after water-quenching from 1150°C is studied. The decomposition of a supersaturated solid solution is shown to substantially influence the linear thermal expansi...

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Published inRussian metallurgy Metally Vol. 2010; no. 3; pp. 223 - 228
Main Authors Uvarov, A. I., Kazantsev, V. A., Vil’danova, N. F., Anufrieva, E. I.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.03.2010
Springer Nature B.V
Subjects
Chemistry and Materials Science
Curie temperature
Ferrous alloys
Low expansion alloys
Materials Science
Metallic Materials
Metallurgy
Plastic deformation
Solid solutions
Thermal expansion
Transformations
RUSSIAN Metallurgy
Martensite Transformation
Supersaturated Solid Solution
Austenite
Aging Temperature
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Summary:The N30K10T3 invar that has a temperature of the onset of martensite transformation of austenite M s ≈ −80°C and a Curie point θ C ≈ 200°C after water-quenching from 1150°C is studied. The decomposition of a supersaturated solid solution is shown to substantially influence the linear thermal expansion coefficient. The alloy is studied in the following three initial states: after quenching, after phase transformation-induced hardening (γ → α m → γ p.h ), and after cold (20°C) plastic deformation by 30%.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0036-0295
1555-6255
1531-8648
DOI:10.1134/S0036029510030122