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Martensitische Umwandlung von Chrom-Nickel-Stahl - Martensitpunkt 255 °C


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Computer animation
Computer animation
Computer animation
Computer animation
Computer animation
Computer animation
Computer animation


Formal Metadata

Title Martensitische Umwandlung von Chrom-Nickel-Stahl - Martensitpunkt 255 °C
Alternative Title Martensitic Transformation of Nickel-Chromium-Steel - Martensitic Temperature 255 °C
Author Rose, Adolf
Hougardy, Hans Paul
License No Open Access License:
German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties.
DOI 10.3203/IWF/E-1151
IWF Signature E 1151
Publisher IWF (Göttingen)
Release Date 1967
Language Silent film
Producer IWF
Production Year 1966

Technical Metadata

IWF Technical Data Film, 16 mm, 60 m ; SW, 5 1/2 min

Content Metadata

Subject Area Physics
Abstract Bildung von Martensit aus unterkühltem Austenit, Ablauf der Umwandlung bei sinkender Temperatur. Bevorzugte Orientierungen der Martensitnadeln in ehemaligen Austenitkörnern. Die Umwandlung selbst wird nicht aufgelöst.
The film shows the development of the martensite from the super-cooled austenite in the needle profile, formed by the sudden change of volume, of a polished surface of a chrome-nickel steel under the heating table microscope. The grain boundaries of the high temperature phase of the austenite also become visible. The shots are taken during the cooling off after an austenitisation at 1150 °C. They begin at about 300 °C just above the Ms-temperature, the start of the martensite formation. It can be seen that the austenite-martensite-transformation continues in the form of constantly new plate formation with decreasing temperatures. The development of one particular martensite plate cannot be observed owing to the high speed. The needles lie within a former austenite grain in certain preferred directions.
Keywords Stahl / Kristallverformung
Kristallverformung / Stahl
austenite transformation
martensite formation
crystal deformation / steel
steel / crystal deformation

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