Effect of multipath laser shock processing on microhardness, surface roughness, and wear resistance of 2024-T3 Al alloy

Abdulhadi Kadhim, Evan T. Salim, Saeed M. Fayadh, Ahmed A. Al-Amiery, Abdul Amir H. Kadhum, Abu Bakar Mohamad

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Laser shock processing (LSP) is an innovative surface treatment technique with high peak power, short pulse, and cold hardening for strengthening metal materials. LSP is based on the application of a high intensity pulsed laser beam (I > 1 G W / c m 2; t < 50 n s) at the interface between the metallic target and the surrounding medium (a transparent confining material, normally water) forcing a sudden vaporization of the metallic surface into a high temperature and density plasma that immediately develops inducing a shock wave propagating into the material. The shock wave induces plastic deformation and a residual stress distribution in the target material. In this paper we study the increase of microhardness and surface roughness with the increase of laser pulse energy in 2024-T3 Al alloy. The influence of the thickness of the confining layer (water) on microhardness and surface roughness is also studied. In addition, the effect of LSP treatment with best conditions on wear behaviors of the alloy was investigated.

Original languageEnglish
Article number490951
JournalThe Scientific World Journal
Volume2014
DOIs
Publication statusPublished - 2014

Fingerprint

surface roughness
Microhardness
Wear resistance
Shock
Lasers
laser
Surface roughness
Processing
Shock waves
shock wave
Water
Plasma density
Strengthening (metal)
Pulsed lasers
residual stress
Vaporization
Volatilization
vaporization
Laser beams
Hardening

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Medicine(all)

Cite this

Effect of multipath laser shock processing on microhardness, surface roughness, and wear resistance of 2024-T3 Al alloy. / Kadhim, Abdulhadi; Salim, Evan T.; Fayadh, Saeed M.; Al-Amiery, Ahmed A.; Kadhum, Abdul Amir H.; Mohamad, Abu Bakar.

In: The Scientific World Journal, Vol. 2014, 490951, 2014.

Research output: Contribution to journalArticle

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AU - Al-Amiery, Ahmed A.

AU - Kadhum, Abdul Amir H.

AU - Mohamad, Abu Bakar

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