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

Metals

Andreas Böhner¹  Thomas Niendorf²  Doris Amberger¹  Heinz Werner Höppel¹  Mathias Göken¹ 

[1] Department of Materials Science and Engineering, Institute I: General Material Properties, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, Erlangen 91058, Germany;Lehrstuhl für Werkstoffkunde (Materials Science), University of Paderborn, Paderborn 33095, Germany;

关键词: martensitic transformation;    UFG;    cyclic loading;    AISI 304L;    stainless steel;    equal channel angular pressing;    tensile test;   

DOI  :  10.3390/met2010056

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.