Alloying element vaporization and weld pool temperature during laser welding of AlSl 202 stainless steel

P. A.A. Khan, Tarasankar Debroy

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Alloying element vaporization rates, plasma composition, and the changes in weld composition during laser welding of 202 stainless steel are discussed in this paper. Iron, manganese, and chromium were the most dominant species in the plasma. During laser welding it is always a difficult task to measure the temperature of the weld pool since this region is surrounded by hot plasma. 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, irrespective of the element pair selected. 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 microanalyis technique.

Original languageEnglish (US)
Pages (from-to)641-644
Number of pages4
JournalMetallurgical Transactions B
Volume15
Issue number4
DOIs
StatePublished - Dec 1 1984

Fingerprint

laser welding
Laser beam welding
Stainless Steel
Alloying elements
Vaporization
alloying
plasma composition
stainless steels
Welds
Stainless steel
Plasmas
Chemical analysis
electron probes
high temperature plasmas
Temperature
temperature
manganese
chromium
iron
Chromium

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

Cite this

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abstract = "Alloying element vaporization rates, plasma composition, and the changes in weld composition during laser welding of 202 stainless steel are discussed in this paper. Iron, manganese, and chromium were the most dominant species in the plasma. During laser welding it is always a difficult task to measure the temperature of the weld pool since this region is surrounded by hot plasma. 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, irrespective of the element pair selected. 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 microanalyis technique.",
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Alloying element vaporization and weld pool temperature during laser welding of AlSl 202 stainless steel. / Khan, P. A.A.; Debroy, Tarasankar.

In: Metallurgical Transactions B, Vol. 15, No. 4, 01.12.1984, p. 641-644.

Research output: Contribution to journalArticle

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