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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 (CC BY 3.0).
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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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