The Nitrogen Absorption of Stainless Steel Weld Metal by Gas Tungsten Arc Welding

Takeshi Kuwana, Hiroyuki Kokawa, Ken Ichiro Naitoh

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Using an arc atmosphere controlling chamber, effects of the welding conditions and atmosphere on the nitrogen content of the stainless steel weld metal by gas tungsten arc welding were investigated in comparison with those on the iron weld metal. The results are as follows: (1) The temperatures of stainless steel and iron molten pools were measured as about 1530°C and 1630°C respectively. (2) The nitrogen content of stainless steel weld metal decreased with increasing the welding current as well as that of iron weld metal. (3) The nitrogen content of stainless steel weld metal hardly depended on the arc length, as well as that of iron weld metal. (4) The nitrogen content of stainless steel weld metal increased with increasing the travel speed, while that of iron weld metal hardly depended on the travel speed. (5) The nitrogen content of stainless steel weld metal increased with the nitrogen partial pressure at low nitrogen partial pressure region, and was constant at the nitrogen partial pressure region above 0.2 atm in N2-Ar gas mixture atmosphere, as well as that of iron weld metal. (6) The nitrogen absorption by stainless steel weld metal was discussed with equilibrium data.

Original languageEnglish
Pages (from-to)669-675
Number of pages7
Journalquarterly journal of the japan welding society
Volume2
Issue number4
DOIs
Publication statusPublished - 1984 Jan

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces, Coatings and Films
  • Metals and Alloys

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