Microstructure and mechanical properties of laser shocked iron-based alloys
type: CreativeWork
description: The effects of laser shock processing (LSP) on the microstructure and mechanical properties of the low carbon (0.04 wt.%C) and Hadfield manganese (1%C and 14%Mn) steels have been studied. LSP was performed with a 1.054 $\mu$m wavelength Nd:phosphate laser operating in a pulse mode (600 ps pulse length and up to 200 J energy) with power densities above 10$\sp{11}$ W/cm$\sp2$. Shock waves were generated by volume expansion of the plasma formed when the material was laser irradiated. Maximum shock wave intensities were obtained using an energy-absorbing black paint coating without a plasma-confining overlay. Maximum modification of the material surface properties and favorable compressive residual stresses were achieved when LSP-induced deformation occurred without melting.
abstract: The effects of laser shock processing (LSP) on the microstructure and mechanical properties of the low carbon (0.04 wt.%C) and Hadfield manganese (1%C and 14%Mn) steels have been studied. LSP was performed with a 1.054 $\mu$m wavelength Nd:phosphate laser operating in a pulse mode (600 ps pulse length and up to 200 J energy) with power densities above 10$\sp{11}$ W/cm$\sp2$. Shock waves were generated by volume expansion of the plasma formed when the material was laser irradiated. Maximum shock wave intensities were obtained using an energy-absorbing black paint coating without a plasma-confining overlay. Maximum modification of the material surface properties and favorable compressive residual stresses were achieved when LSP-induced deformation occurred without melting.
author: Chu, Jinn P.
language: eng
keywords: Engineering, Metallurgy, Engineering, Materials Science
date published: 2011-05-07T13:20:17Z
date modified: 2026-07-22T22:25:18Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/21825