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Effects on the deformation-induced martensitic transformation in AISI 304 in external longitudinal turning
Authors
Bernd Breidenstein
Berend Denkena
+5 more
Marc-André Dittrich
Lara Vivian Fricke
Hans Jürgen Maier
Hai Nam Nguyen
David Zaremba
Publication date
1 January 2021
Publisher
[Amsterdam] : Elsevier ScienceDirect
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Abstract
During the turning process of metastable austenitic steels, austenite is transformed into hard martensite by plastic deformation at low temperatures. This enables the production of components, which have both a hardened subsurface zone and a ductile core. Cryogenic cooling allows the subsurface zone to be hardened during machining, which leads to a shortening of the process chain. However, effects such as wear can make it challenging to adjust the properties of the subsurface zone during turning. By adjusting the tool microgeometry with a flank face modification, the wear condition can be kept constant for a certain period. In addition, the significance analysis with different tool microgeometries shows that only feed and initial temperature have a significant effect on the martensite formation. © 2021 The Author(s
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Institutionelles Repositorium der Leibniz Universität Hannover
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Last time updated on 01/11/2022