Characterisation of Severely Deformed Austenitic Stainless Steel Wire

Han-Shen Wang, J. R. Yang and H. K. D. H. Bhadeshia

Abstract

The microstructure of 8 μm diameter wire produced by the severe deformation of 316L austenitic stainless steel has been examined using transmisssion electron microscopy and X-ray diffraction. The deformation imparted amounts to a true strain of 6.3. Data from previous studies on the strain--induced transformation of this steel have been combined with new results to show that true strains greater than 2 are required in order to observe mechanical stabilisation, i.e., the cessation of martensitic transformation when the martensite/austenite interfaces are unable to propagate through the dislocation debris created in the austenite.

Materials Science and Technology, 21 (2005) 1323-1328.

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The paper was reprinted in Wire Industry, February 2007, 30-37 Download PDF file of reprinted paper.

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