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

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

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.

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Authors and Affiliations

  1. Allegheny Ludlum Steel Corporation, Brackenridge, PA

    M. M. Collur

  2. Department of Materials Science and Engineering, The Pennsylvania State University, 16802, University Park, PA

    T. Debroy (Associate Professor)

Authors
  1. M. M. Collur
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  2. T. Debroy
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Additional information

M.M. Collur, formerly Graduate Student, Pennsylvania State University

This paper is based on a presentation made in the T.B. King Memorial Symposium on “Physical Chemistry in Metals Processing” presetned at the Annual Meeting of The Metallurgical Society, Denver, CO, February, 1987, under the auspices of the Physical Chemistry Committee and the PTD/ISS.

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Collur, M.M., Debroy, T. Emission spectroscopy of plasma during laser welding of AISI 201 stainless steel. Metall Trans B 20, 277–286 (1989). https://doi.org/10.1007/BF02825608

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  • DOI: https://doi.org/10.1007/BF02825608

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