Welding methods for producing ultra-high strength weldments with

Details Welding methods for producing ultra-high strength weldments with Welding methods for producing ultra-high strength weldments with

1998-06-18

2000-09-05

Ryan, Patrick

Electric heating

Metal heating

By arc

219137, 21914623, B23K 3522

Patent

active

061146560

ABSTRACT:
Welding methods are provided for use in joining ultra-high strength, low alloy steels to produce weldments having tensile strengths greater than about 900 MPa (130 ksi) with weld metals having fracture toughness suitable for cryogenic applications according to known principles of fracture mechanics.

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K. E. Dorschu et al., "Development of a Filler Metal for a High-Toughness Alloy Plate Steel with a Mininum Yield Strength of 140 ksi", The Welding Journal, Dec. 1964, pp. 564s-575s.
G. G. Saunders, "Effect of Major Alloying Elements on the Toughness of High Strength Weld Metal", Welding Research International, vol. 7, No. 2, 1977, pp. 91-118.
Reference cited by the Taiwan Patent Office in counterpart application, reference title-- "Electronic Welding Operation Handbook Part 1", 1994, pp. 33-41; English language translations of relevant portions as provided by Applicant's agent in Taiwan.
Reference cited by the Taiwan Patent Office in counterpart application, reference title-- "Welding Handbook vol. 2", 1993, pp. 190-195; English language translations of relevant portions as provided by Applicants's agent in Taiwan.

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