Effects of moisture contamination and welding parameters on diffusible hydrogen
- Conoco, Inc., Houston, TX (United States)
Two experiments were conducted on gas-shielded flux cored arc welding. The first one tested the effects of shielding gas moisture contamination and welding parameters on the diffusible hydrogen content. The second compared the hydrogen levels of various unused electrodes with the diffusible hydrogen they produced in the weld. An empirical equation has been developed that can predict the diffusible hydrogen in weld metal for gas-shielded flux cored arc welding. Estimating diffusible hydrogen is possible using measured welding parameters, shielding gas dew point, and total hydrogen of the consumable. The equation is suitable for small-diameter electrodes and welding parameter ranges commonly used for out-of-position welding.
- OSTI ID:
- 248120
- Journal Information:
- Welding Journal, Vol. 75, Issue 5; Other Information: PBD: May 1996
- Country of Publication:
- United States
- Language:
- English
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