Paper Title:

Enhanced Mechanical Properties of Stainless Steel 316 L via Friction Stir Processing

Periodical Defect and Diffusion Forum (Volumes 297 - 301)
Main Theme Diffusion in Solids and Liquids V
Edited by Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado
Pages 215-220
DOI 10.4028/
Citation R. Salekrostam et al., 2010, Defect and Diffusion Forum, 297-301, 215
Online since April 2010
Authors R. Salekrostam, M.K. Besharati Givi
Keywords 316L Stainless Steel, Friction Stir Processing (FSP), Hardness, Metal Matrix Composite (MMC), Microstructure Modification
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Friction stir processing (FSP) is a solid state process to modify microstructure and mechanical properties of sheet metals and as-cast materials. In this process stirring action of the tool causes the material to intense plastic deformation that yields a dynamical recrystalyzation. In this study the effect of FSP and process parameters on hardness, and microstructure of stainless steel 316L has been investigated. Also by using of FSP, a composite layer of 316L/SiC has been produced. Results show that FSP leads to a finer and homogenized grain structure, as well as increased hardness, strength, toughness, and elongation at failure of the material. The composites produced by FSP have a uniform distribution of SiC particles between the grains of the base metal.