Procedure development of laser welding of V-4Cr-4Ti alloy.
V-4Cr-4Ti alloy is selected as the structure material for the first wall/blanket in a fusion power reactor. A systematic study was conducted to develop a laser welding procedure for fabrication of vanadium alloy for the first wall/blanket systems. A 1.6 kW pulsed Nd:YAG laser with fiber optic beam delivery was used to carry out the bead-on-plate welding on 4 mm thick V-4Cr-4Ti plates. The process parameters, such as laser schedule power settings, beam travel speed, and welding atmosphere control, and their effects on weld quality, such as weld depth, porosity, and oxygen uptake were studied. Results from metallurgical characterization of the welds are presented. An innovative laser welding procedure has been developed to obtain deep penetration, defect-free, and oxygen contamination-free welds.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 942755
- Report Number(s):
- ANL/TD/JA-34273; IJRMD5; TRN: US0904222
- Journal Information:
- Int. J. Refract. Hard Met., Vol. 18, Issue 2000 ; 2001; ISSN 0263-4368
- Country of Publication:
- United States
- Language:
- ENGLISH
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