Quarterly Management Document – FY21, 4th Quarter, Multi-pass Hybrid Laser Arc Welding of Alloy 740H
Program Document
·
OSTI ID:1827139
- Idaho National Laboratory
- Pennsylvania State University
This report summarizes the progress made on reducing the joining time for thick plates of Alloy 740H. Modeling of deep penetration laser welding of Alloy 740H continues with the goal of explaining cracking in the weld that is observed in experimental laser welds in this alloy. Experimental work was also performed to understand factors influencing hybrid laser arc weld quality as a function of the arc and laser parameters. Laser welds and hybrid laser arc welds have been made using best practices up this point in the project. Welded materials have been sent to a commercial vendor to make creep specimens and perform short term creep tests to help evaluate the quality of the welds that have been made so far.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE Office of Fossil Energy (FE), Clean Coal and Carbon (FE-20)
- DOE Contract Number:
- AC07-05ID14517
- OSTI ID:
- 1827139
- Report Number(s):
- INL/MIS-21-64891-Rev000
- Country of Publication:
- United States
- Language:
- English
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