Method of producing titanium-based sintered material, and titanium-based sintered material
AssigneeSumitomo Electric Industries, Ltd.
InventorsShigeki EGASHIRA, Tomoyuki ISHIMINE, Masashi HAYAKAWA
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Abstract
A method of producing a titanium-based sintered material includes: producing a powder mixture by mixing a first powder and a ceramic powder; producing a raw material powder by mixing the powder mixture and a second powder; producing a molded powder compact by performing pressure-molding onto the raw material powder; and producing the titanium-based sintered material by sintering the molded powder compact, wherein one of the first powder and the second powder is a powder composed of titanium or a titanium alloy, and the other is a powder including an element that is able to be alloyed with titanium.
Claims11
A method of producing a titanium-based sintered material, the method comprising:
- producing a powder mixture by mixing a first powder and a ceramic powder;
- producing a raw material powder by mixing the powder mixture and a second powder;
- producing a molded powder compact by performing pressure-molding onto the raw material powder;
- and
- producing the titanium-based sintered material by sintering the molded powder compact, wherein
- a combination of the first powder and the second powder is a combination in which the first powder is a powder composed of titanium or a titanium alloy and the second powder is a powder including an element that is able to be alloyed with titanium, or a combination in which the second powder is a powder composed of titanium or a titanium alloy and the first powder is a powder including an element that is able to be alloyed with titanium.
A titanium-based sintered material comprising:
- a matrix including titanium;
- and
- a plurality of precipitates each composed of a compound derived from a ceramic powder, the plurality of precipitates being dispersed in the matrix, wherein
- an average value R0, a maximum value R1, and a minimum value R2 of a plurality of ratios of existence respectively obtained from a plurality of different measurement ranges, which are 50 or more measurement ranges, in a cross section satisfy the following formulas:
- R
-
- 1
- ≤
- R
-
- 0
- +
- 4.5
- ,
- and
- R
-
- 2
- ≥
- R
-
- 0
- -
- 4.5
- ,
- each of the plurality of ratios of existence is an area ratio of the plurality of precipitates when a total area of the matrix and the plurality of precipitates in a corresponding one of the plurality of measurement ranges is regarded as 100%.
Dependencies are inferred from the claim text.