Oxygen solid solution titanium material sintered compact and method for producing same

Abstract

An oxygen solid solution titanium sintered compact includes a matrix made of a titanium component having an α-phase, oxygen atoms dissolved as a solute of solid solution in a crystal lattice of the titanium component, and metal atoms dissolved as a solute of solid solution in the crystal lattice of the titanium component.

1 . An oxygen solid solution titanium material sintered compact comprising:
 a matrix made of a titanium component having an α-phase;   oxygen atoms dissolved as a solute of solid solution in a crystal lattice of said titanium component; and   metal atoms dissolved as a solute of solid solution in the crystal lattice of said titanium component, wherein   said metal atoms are selected from the group consisting of Ta, Fe, Zr, Cr and Mg.   
     
     
         2 . The oxygen solid solution titanium material sintered compact according to  claim 1 , wherein
 said metal atoms are Zr, and   said oxygen solid solution titanium material sintered compact has a micro Vickers hardness of Hv 241-442 and an elongation of 8.2-34.2%.   
     
     
         3 . The oxygen solid solution titanium material sintered compact according to  claim 1 , wherein
 said matrix has a chemical composition of Ti-6A1-4V,   said metal atoms are Zr, and   said oxygen solid solution titanium material sintered compact has a micro Vickers hardness of Hv 322-406 and an elongation of 15.2-23.3%.   
     
     
         4 . An oxygen solid solution titanium material sintered compact comprising:
 a matrix made of a titanium component having an α-phase;   oxygen atoms dissolved as a solute of solid solution in a crystal lattice of said titanium component; and   metal atoms dissolved as a solute of solid solution up to a solid solubility limit of dissolving in the crystal lattice of said titanium component, wherein   said metal atoms are selected from the group consisting of Si, Al, Cu, Nb, Be, Co, Mn and V, and   a compound of said titanium component and said metal atoms exceeding the solid solubility limit of dissolving into the α-phase is dispersed in said matrix.   
     
     
         5 . The oxygen solid solution titanium material sintered compact according to  claim 4 , wherein
 said oxygen solid solution titanium material sintered compact has a micro Vickers hardness of Hv 459-861.   
     
     
         6 . The oxygen solid solution titanium material sintered compact according to  claim 4 , wherein
 said metal atoms are Al, and   said oxygen solid solution titanium material sintered compact has an elongation of 15.5-26.5%%.   
     
     
         7 . The oxygen solid solution titanium material sintered compact according to  claim 4 , wherein
 said metal atoms are V, and   said oxygen solid solution titanium material sintered compact has an elongation of 24.1-28.9%%.   
     
     
         8 . An oxygen solid solution titanium material sintered compact comprising:
 a matrix made of a titanium component having an α-phase;   oxygen atoms dissolved as a solute of solid solution in a crystal lattice of said titanium component; and   a metal component that is present by being deposited and dispersed in said matrix, wherein   said metal component is Sn.