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The Cyclic Deformation Behavior of Severe Plastic Deformation (SPD) Metals and the Influential Factors
Metals 2012, 2(1), 56-64; doi:10.3390/met2010056
Article

Martensitic Transformation in Ultrafine-Grained Stainless Steel AISI 304L Under Monotonic and Cyclic Loading

1
, 2
, 1
, 1,* , 1
 and 2
1 Department of Materials Science and Engineering, Institute I: General Material Properties, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, Erlangen 91058, Germany 2 Lehrstuhl für Werkstoffkunde (Materials Science), University of Paderborn, Paderborn 33095, Germany
* Author to whom correspondence should be addressed.
Received: 4 December 2011 / Revised: 22 December 2011 / Accepted: 13 January 2012 / Published: 2 February 2012
(This article belongs to the Special Issue Processing and Properties of Bulk Nanostructured Materials)
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Abstract

The monotonic and cyclic deformation behavior of ultrafine-grained metastable austenitic steel AISI 304L, produced by severe plastic deformation, was investigated. Under monotonic loading, the martensitic phase transformation in the ultrafine-grained state is strongly favored. Under cyclic loading, the martensitic transformation behavior is similar to the coarse-grained condition, but the cyclic stress response is three times larger for the ultrafine-grained condition.
Keywords: martensitic transformation; UFG; cyclic loading; AISI 304L; stainless steel; equal channel angular pressing; tensile test martensitic transformation; UFG; cyclic loading; AISI 304L; stainless steel; equal channel angular pressing; tensile test
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Böhner, A.; Niendorf, T.; Amberger, D.; Höppel, H.W.; Göken, M.; Maier, H.J. Martensitic Transformation in Ultrafine-Grained Stainless Steel AISI 304L Under Monotonic and Cyclic Loading. Metals 2012, 2, 56-64.

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