The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2012
Filed:
Sep. 18, 2007
Raghavan Ayer, Basking Ridge, NJ (US);
Neeraj S. Thirumalai, Phillipsburg, NJ (US);
Daniel B. Lillig, Sugar Land, TX (US);
Steven J. Ford, Missouri City, TX (US);
Douglas P. Fairchild, Sugar Land, TX (US);
Raghavan Ayer, Basking Ridge, NJ (US);
Neeraj S. Thirumalai, Phillipsburg, NJ (US);
Daniel B. Lillig, Sugar Land, TX (US);
Steven J. Ford, Missouri City, TX (US);
Douglas P. Fairchild, Sugar Land, TX (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Provided are metal structures and methods of forming such structures for use in oil, gas and/or petrochemical applications that are joined with non-ferrous weld metal compositions or a high alloy weld metal compositions. The welded metal structures include two or more segments of ferrous or non-ferrous components, and fusion welds, friction stir welds or a combination thereof bonding adjacent segments of the components together, wherein the welds comprise a non-ferrous weld metal composition or a high alloy weld metal composition that is substantially different from the metal composition of the two or more components. The resultant welded structures exhibit improvements in fatigue resistance, toughness, strain capacity, strength, stress corrosion cracking resistance, and hydrogen embrittlement resistance compared to traditional iron-based weld compositions. The structures and methods of forming such structures are advantageous in joining metal components in applications for natural gas transportation and storage, oil and gas well completion and production, and oil and gas refinery and chemical plants.