Mechanical Property of Duplex Stainless Steel with Nanostructured Layer by Surface Mechanical Attrition Treatment

Liu Chen; Xiao Lei Xu

doi:10.4028/www.scientific.net/MSF.682.123

Paper Titles

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Mechanical Properties of Plain Carbon Steels with Ultrafine (α+θ) Microstructures
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Microstructure and Performance of Surface Nanostructure 316L Stainless Steel Induced by Wire-Brushing Deformation
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Mechanical Property of Duplex Stainless Steel with Nanostructured Layer by Surface Mechanical Attrition Treatment
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Microstructure and Mechanical Properties of a 1.6C (pct) Ultra-Fine Grained Ultra-High Carbon Steel
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Constitutive Model for Large Plastic Deformation of Nanocrystalline Materials
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Effect of Load Direction on Tensile Yield Properties in Mg-3Al-Zn Alloy
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HomeMaterials Science ForumMaterials Science Forum Vol. 682Mechanical Property of Duplex Stainless Steel with...

Mechanical Property of Duplex Stainless Steel with Nanostructured Layer by Surface Mechanical Attrition Treatment

Abstract:

A grain size gradient layer material was produced by means of surface mechanical attrition treatment on a UNS S32304 duplex stainless steel. In this study, the mechanical property was characterized by tensile test, while microstructure was investigated by transmission electron microscopy, scanning electron microscopy and electron backscatter diffraction. The deformed layer enhanced both the yield strength and maximum strength with large ductility retained, as revealed by tensile test that the yield stress of 30 minutes processed sample was 702 MPa as compared with 454 MPa of as-annealed sample. The elongation to failure, however, decreased from 0.41 to 0.27.

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Materials Science Forum (Volume 682)

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123-130

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https://doi.org/10.4028/www.scientific.net/MSF.682.123

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Online since:

March 2011

Authors:

Liu Chen, Xiao Lei Xu

Keywords:

Duplex Stainless Steel, Nanostructure, Surface Mechanical Attrition Treatment (SMAT)

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