DETERMINATION OF WELD POOL TEMPERATURE DURING LASER WELDING OF AISI 202 STAINLESS STEEL.

P. A.A. Khan, Tarasankar Debroy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper a novel technique for the determination of weld pool temperature is presented. It is demonstrated that the relative rates of vaporization of any two elements from the molten pool can serve as an indicator of weld pool temperature. Alloying element vaporization rates, composition of the vaporized material and the weld pool temperature were determined for various experimental conditions during laser welding of AISI 202 stainless steel. Both the vaporization rate and the weld pool temperature were found to increase with the increase in laser power. The vaporized material consisted primarily of iron, manganese and chromium. The composition of the solidified region calculated from the measured values of vaporization rate, plasma composition and the volume of the solidified region was in good agreement with the weld composition determined by electron probe microanalysis.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherMetallurgical Soc of AIME
Pages71-81
Number of pages11
ISBN (Print)0895204924
StatePublished - Dec 1 1985

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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