Metallurgical and Materials Transactions B

, Volume 20, Issue 2, pp 277–286 | Cite as

Emission spectroscopy of plasma during laser welding of AISI 201 stainless steel

  • M. M. Collur
  • T. Debroy
T.B. King Memorial Symposium on Physical Chemistry in Metals Processing In Memory of Thomas B. King


The rates of vaporization of alloying elements from the weld pool were related to the emission spectra of the plasma during pulsed laser welding of AISI 201 stainless steel under various welding conditions. The temperature distribution in the plasma was determined from the spectra obtained from various locations in the plasma plume. The extent of ionization of the plasma was calculated from the electron temperatures To understand the role of surface active elements, emission spectra and the vaporization rate of iron that resulted from the welding of ultrapure iron samples were compared with those from the welding of oxidized samples or samples that were doped with sulfur or oxygen.


Welding Metallurgical Transaction Electron Temperature Weld Pool Welding Speed 
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Copyright information

© The Minerals, Metals & Materials Society - ASM International - The Materials Information Society 1989

Authors and Affiliations

  • M. M. Collur
    • 1
  • T. Debroy
    • 2
  1. 1.Allegheny Ludlum Steel CorporationBrackenridge
  2. 2.Department of Materials Science and EngineeringThe Pennsylvania State UniversityUniversity Park

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