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Interstitial embrittlement in vanadium laser welds

Description: Efficiencies of interstitial absorption during pulsed ND:YAG laser welding of vanadium were compared for nitrogen, oxygen, hydrogen, and water vapor. Influence of interstitial levels on the embrittlement of vanadium laser welds was also measured. For 1000 ppM contaminant levels in the weld atmosphere, weld hydrogen content increased 9 ppM, nitrogen content increased 190 ppM, and oxygen content increased from 500 ppM relative to baseplate levels. Welds in ultrahigh-purity argon atmospheres conta… more
Date: February 24, 1992
Creator: Strum, M.J. & Wagner, L.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Interstitial embrittlement in vanadium laser welds

Description: Efficiencies of interstitial absorption during pulsed ND:YAG laser welding of vanadium were compared for nitrogen, oxygen, hydrogen, and water vapor. Influence of interstitial levels on the embrittlement of vanadium laser welds was also measured. For 1000 ppM contaminant levels in the weld atmosphere, weld hydrogen content increased 9 ppM, nitrogen content increased 190 ppM, and oxygen content increased from 500 ppM relative to baseplate levels. Welds in ultrahigh-purity argon atmospheres conta… more
Date: February 24, 1992
Creator: Strum, M. J. & Wagner, L. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Welding Behavior of Free Machining Stainless Steel

Description: The weld solidification and cracking behavior of sulfur bearing free machining austenitic stainless steel was investigated for both gas-tungsten arc (GTA) and pulsed laser beam weld processes. The GTA weld solidification was consistent with those predicted with existing solidification diagrams and the cracking response was controlled primarily by solidification mode. The solidification behavior of the pulsed laser welds was complex, and often contained regions of primary ferrite and primary aus… more
Date: July 24, 2000
Creator: Brooks, John A.; Robino, Charles V.; Headley, Thomas J. & Michael, Joseph R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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