Abstract
20Cr-10Ni stainless steel was welded in N2 and N2-Ar atmospheres at 1~30 atm pressures. Effects of welding conditions and the nitrogen partial pressure on the nitrogen content of stainless steel weld metal were systematically studied. The results are summarized as follows: (1) In the nitrogen welding atmosphere, the nitrogen content of the weld metal decreased with increasing the welding current and increasing the travel speed, and with decreasing the arc voltage. (2) In the nitrogen welding atmosphere, the nitrogen content of the weld metal increased with the nitrogen pressure, but the nitrogen absorption of the weld metal does not obey the Sieverts' law. (3) In N2-Ar welding atmosphere, the nitrogen content of the weld metal was lower in high atmospheric pressure than in low pressure at the same nitrogen partial pressure. (4) Using thermodynamic data obtained by equilibrium study, the nitrogen absorption into the stainless steel weld metal in the nitrogen atmosphere of high pressure was discussed. (5) All stainless steel weld metals had no porosity.
Original language | English |
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Pages (from-to) | 744-751 |
Number of pages | 8 |
Journal | quarterly journal of the japan welding society |
Volume | 3 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1985 Jan 1 |
Keywords
- Bead Shape
- Chemical Reaction
- High Pressure
- Nitrogen Absorption
- Nitrogen Atmosphere
- Solubility of Nitrogen
- Stainless Steel Weld Metal
- Wire Melting Rate
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Surfaces, Coatings and Films
- Metals and Alloys