US2021164295A1PendingUtilityA1

Metal Matrix Compositions and Methods for Manufacturing Same

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Assignee: SEED TECH CORP LTDPriority: Dec 7, 2015Filed: Feb 10, 2021Published: Jun 3, 2021
Est. expiryDec 7, 2035(~9.4 yrs left)· nominal 20-yr term from priority
Inventors:Yuehua XuYuan YuanBin Liu
B22F 10/366B22F 10/36B22F 10/16B22F 10/28B33Y 70/10C22C 29/08C22C 1/10B33Y 10/00B22F 3/105Y02P10/25F04D 29/026B22F 2005/001B23K 15/06C22C 29/005B28B 1/001B23K 15/0006F05D 2300/2263B23K 15/0086B23K 15/0093E21B 10/54E21B 10/46B33Y 80/00B22F 10/00B23K 2103/52F04D 29/22F05D 2230/30F04D 29/2227B23K 2101/001B23K 15/02F05D 2300/177B23K 2101/20F16L 9/14B22F 7/00B22F 10/20C22C 32/0047B33Y 70/00
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Claims

Abstract

A metal matrix composite composition includes tungsten carbide in an amount of 45 wt % to 72 wt % of the composition. In addition, the composition includes a binder in an amount of 28 wt % to 55 wt % of the composition. The binder includes nickel in an amount of at least 99 wt % of the binder.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A metal matrix composite composition, comprising:
 tungsten carbide in an amount of 45 wt % to 72 wt % of the composition; and   a binder in an amount of 28 wt % to 55 wt % of the composition, wherein the binder comprises:
 nickel in an amount of at least 99 wt % of the binder. 
   
     
     
         2 . The composition of  claim 1 , wherein the amount of tungsten carbide is 50 wt % to 65 wt % of the composition and the amount of the binder is 35 wt % to 50 wt % of the composition. 
     
     
         3 . The composition of  claim 2 , wherein the amount of tungsten carbide is 55 wt % to 60 wt % of the composition and the amount of the binder is 40 wt % to 45 wt % of the composition. 
     
     
         4 . The composition of  claim 1 , wherein the binder comprises substantially 0.0 wt % Si and 0.0 wt % B. 
     
     
         5 . The composition of  claim 1 , wherein the binder comprises 100 wt % Ni. 
     
     
         6 . The composition of  claim 1 , wherein at least 50 vol % of the tungsten carbide comprises spherical cast WC/W 2 C. 
     
     
         7 . The composition of  claim 6 , wherein at least 70 vol % of the tungsten carbide comprises spherical cast WC/W 2 C. 
     
     
         8 . An earth boring drill bit for drilling a borehole in an earthen formation, the drill bit comprising:
 a bit body made of the metal matrix composite of  claim 1 .

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