Invention Grant
- Patent Title: Laser cladding Fe—Cr alloy on downhole tools
- Patent Title (中): 激光熔覆Fe-Cr合金在井下工具
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Application No.: US13235070Application Date: 2011-09-16
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Publication No.: US09382596B2Publication Date: 2016-07-05
- Inventor: Raju Pillai , Jiinjen A. Sue , Parul W. Dhall
- Applicant: Raju Pillai , Jiinjen A. Sue , Parul W. Dhall
- Applicant Address: US TX Houston
- Assignee: National Oilwell Varco, L.P.
- Current Assignee: National Oilwell Varco, L.P.
- Current Assignee Address: US TX Houston
- Agency: Conley Rose, P.C.
- Main IPC: C21D6/00
- IPC: C21D6/00 ; C21D9/00 ; C22C38/18 ; C22C38/22 ; E21B10/46 ; B23K35/30 ; C21D1/09 ; C21D1/38 ; B23K26/34 ; C22C38/02 ; C22C38/24 ; C22C33/02 ; B23K35/02 ; B23K26/32
Abstract:
A hardfacing composition composed of an Fe—Cr alloy. The alloy is comprised of 80 wt % iron, about 2 wt % to about 20 wt % Cr, less than 1 wt % Si and less than 1 wt % C. The alloy's microstructure is at least 80 vol % martensite; and less than 20 vol % austenite.
Public/Granted literature
- US20130068449A1 LASER CLADDING FE-CR ALLOY ON DOWNHOLE TOOLS Public/Granted day:2013-03-21
Information query
