C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/44 (2006.01) B23K 35/30 (2006.01) C22C 38/02 (2006.01) C22C 38/04 (2006.01) C22C 38/22 (2006.01) C22C 38/24 (2006.01) C22C 38/26 (2006.01) C22C 38/28 (2006.01) C22C 38/38 (2006.01) C22C 38/48 (2006.01) C22C 38/50 (2006.01) C22C 38/58 (2006.01)
Patent
CA 2642764
Compositions for stainless steel weld overlays having enhanced wear resistance are provided by incorporating second phase Titanium Carbide (TiC) and/or Niobium Carbide (NbC) into matrices of various types of stainless steel such as 316L and 420. Preferably, TiC and NbC precipitates are formed in-situ during the weld overlay process while minimizing the amount of Carbon (C) going into solid solution in the matrix of the weld overlay.
L'invention concerne des compositions destinées à des recouvrements de soudure en acier inoxydable à résistance améliorée à l'usure par introduction de carbure de titane (TiC) et/ou du carbure de niobium (NbC) de seconde phase dans des matrices de divers types d'aciers inoxydables tels que le 316L et le 420. De préférence, les précipités de TiC et NbC sont formés in situ durant le processus de recouvrement de soudure tout en réduisant au minimum la quantité de carbone (C) entrant dans la solution solide de la matrice de recouvrement de soudure.
Leclaire Francis Louis
Menon Ravi
Wallin Jack Garry
Gowling Lafleur Henderson Llp
Stoody Company
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