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Title: Evaluation of laser welding techniques for hydrogen transmission. Final report, September 1977-November 1979

Technical Report ·
DOI:https://doi.org/10.2172/6509301· OSTI ID:6509301

This program was established to determine the feasibility of laser beam welding as a fabrication method for hydrogen transmission and is a precursor in the effort to systematically provide the technological base necessary for large-scale, economic pipeline transmission of fuel for a hydrogen energy system. The study contributes to the technology base by establishing the effect of conventional weld processes and laser beam welding on the mechanical properties of two classes of steels in an air and high pressure gaseous hydrogen environment. Screening evaluation of the tensile, low-cycle fatigue and fracture toughness properties and metallurgical analyses provide the basis for concluding that laser beam welding of AISI 304L stainless steel and ASTM A106B carbon steel can produce weldments of comparable quality to those produced by gas-tungsten arc and electron beam welding and is at least equally compatible with 13.8 MPa (2000 psig) gaseous hydrogen environment.

Research Organization:
Pratt and Whitney Aircraft Group, West Palm Beach, FL (USA). Government Products Div.
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-77ET26214
OSTI ID:
6509301
Report Number(s):
DOE/ET/26214-T1; COO-4355-11
Country of Publication:
United States
Language:
English