公开(公告)号：EP2242865A1

公开(公告)日：2010-10-27

申请号：EP08861281.7

申请日：2008-11-25

申请人： ExxonMobil Research and Engineering Company

发明人： AYER, Raghavan ,  THIRUMALIA, Neeraj, S. ,  JIN, Hyun-Woo ,  LILLIG, Daniel, B. ,  FAIRCHILD, Douglas, P. ,  FORD, Steven, J.

IPC分类号： C22C19/05 ,  C22C27/06

CPC分类号： B23K20/122 ,  B23K5/006 ,  B23K9/23 ,  B23K10/02 ,  B23K15/0093 ,  B23K20/22 ,  B23K26/32 ,  B23K28/02 ,  B23K35/3033 ,  B23K35/3053 ,  B23K2203/50 ,  C21D1/18 ,  C22C19/03 ,  C22F1/10 ,  Y10T428/12931 ,  Y10T428/12937 ,  Y10T428/12944 ,  Y10T428/12951

摘要： Provided are precipitation hardened high strength nickel based alloy welds that yield improved properties and performance in joining high strength metals. The advantageous weldments include two or more segments of ferrous or non- ferrous components, and fusion welds, friction stir welds, electron beam welds, laser beam welds, or a combination thereof bonding adjacent segments of the components together, wherein the welds comprise a precipitation hardened nickel based alloy weld metal composition including greater than or equal to 1.4 wt% of combined aluminum and titanium based on the total weight of the nickel based alloy weld metal composition. Also provided are methods for forming the welds from the nickel based alloy weld compositions, wherein the precipitation hardening occurs in the as-welded condition. The nickel based welds do not require a separate heat treatment step after welding to produce advantageous strength properties.

公开(公告)号：EP2197622A2

公开(公告)日：2010-06-23

申请号：EP08832615.2

申请日：2008-09-18

申请人： ExxonMobil Research and Engineering Company

发明人： AYER, Raghavan ,  THIRUMALAI, Neeraj, S. ,  LILLIG, Daniel, B. ,  FORD, Steven, J. ,  FAIRCHILD, Douglas, P.

IPC分类号： B23K35/30 ,  B23K35/32 ,  B23K101/04

CPC分类号： B23K35/325 ,  B23K35/3026 ,  B23K35/3033 ,  B23K35/3046 ,  B23K35/3053 ,  B23K2201/10 ,  B23K2201/12 ,  B23K2203/04 ,  B23K2203/05 ,  B23K2203/14 ,  Y10T428/12014 ,  Y10T428/12493 ,  Y10T428/12951 ,  Y10T428/12972

摘要： 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 or high alloy 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. 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. Weld metals may include Inconel 625, Ti64, stainless steels, marging steels, precipitaion hardening steels.

公开(公告)号：EP2234750A2

公开(公告)日：2010-10-06

申请号：EP08861763.4

申请日：2008-12-16

申请人： ExxonMobil Research and Engineering Company

发明人： AYER, Raghavan ,  THIRUMALAI, Neeraj, Srinivas ,  JIN, Hyun-woo ,  LILLIG, Daniel, B. ,  FAIRCHILD, Douglas, P. ,  FORD, Steven, J.

IPC分类号： B23K9/022

CPC分类号： B23K9/23 ,  B23K20/22 ,  B23K26/0006 ,  B23K2203/04 ,  B23K2203/05 ,  B23K2203/06 ,  B23K2203/14 ,  B23K2203/18 ,  B23K2203/26 ,  B23K2203/50 ,  Y10T428/12806 ,  Y10T428/12937 ,  Y10T428/12944

摘要： Provided are strain hardened high strength nickel based alloy welds that yield improved properties and performance in joining high strength metals. The advantageous weldments include two or more segments of ferrous or non-ferrous components, and fusion welds, friction stir welds, electron beam welds, laser beam welds, or a combination thereof bonding adjacent segments of the components together, wherein the welds comprise a strain hardened nickel based alloy weld metal composition including greater than or equal to 10 wt% Mo based on the total weight of the nickel based alloy weld metal composition. Also provided are methods for forming the welds from the nickel based alloy weld compositions. The strain hardened high strength nickel based alloy welds are useful in the oil, gas and petrochemical industry in applications for natural gas transportation and storage, oil and gas well completion and production, and oil and gas refinery and chemical plants.