A kind of gradient alloy composite material and preparation method thereof
A technology of composite materials and gradient alloys, which is applied in the direction of improving process efficiency and energy efficiency, can solve problems such as poor mechanical properties and difficulties in preparing gradient alloy materials, reduce sintering temperature, promote cleaning and material migration, and improve sintering active effect
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[0031] like figure 1 As shown, the embodiment of the present invention provides a preparation method of a gradient alloy composite material, and a preparation method of a gradient alloy composite material, comprising the following steps:
[0032] In step S1, the carbide ceramic powder and the AgCu28 eutectic powder are ball-milled and mixed in an inert atmosphere to obtain a plurality of mixed powders with different component contents;
[0033] Step S2, after the mixed powder and the titanium alloy powder are ball-milled and dried, a plurality of mother powders with different component contents are obtained, and the content of the titanium alloy powder in the plurality of said mother powders increases or decreases gradually;
[0034] Step S3, the multiple mother powders with different component contents are added to the mold successively according to the preset order to carry out the pre-compression molding process, and the pre-molded product is obtained;
[0035] In step S4,...
Embodiment 1
[0060] The present embodiment provides a preparation method of a gradient alloy composite material, comprising the following steps:
[0061] (1) In an inert atmosphere, use a planetary ball mill to mix the ZrC powder and AgCu28 to obtain a mixed powder, wherein a 1mm agate ball is used for dry grinding, the ball milling speed is 500rpm, and the time is 500min. 4:1-2:1.
[0062] (2) Mix the obtained mixed powder and TiH using a drum mixer, wherein, anhydrous ethanol is used as the medium, ZrO of 3 mm is used as the medium. 2 Grinding balls and mixing at a speed of 150 rpm for 12 hours; after mixing, the obtained slurry is dried in an inert atmosphere to obtain master powders with different component contents.
[0063] (3) According to the thickness and composition requirements of the gradient material, weigh different powders of different masses, add them to the mold in sequence, and perform pre-compression molding at room temperature, and the pre-compression pressure is 10MPa...
Embodiment 2
[0067] The present embodiment provides a preparation method of a gradient alloy composite material, comprising the following steps:
[0068] (1) Use a planetary ball mill to mix SiC powder and AgCu28 in an inert atmosphere, wherein 3 mm of ZrO is used 2 Grinding balls, dry grinding, the ball milling speed is 600rpm, the time is 300min, and the ball-to-material ratio is 4:1-2:1.
[0069] (2) Mix the obtained mixed powder and TA2 with a drum mixer, use anhydrous ethanol as a medium, 5 mm of ZrO 2 Grinding balls and mixing at a speed of 250 rpm for 24 hours; after mixing, the obtained slurry is dried in an inert atmosphere to obtain master powders with different component contents.
[0070] (3) According to the thickness and composition requirements of the gradient material, weigh different powders of different masses, add them to the mold in sequence, and perform pre-compression molding at room temperature, and the pre-compression pressure is 20MPa.
[0071] (4) Using spark pl...
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Abstract
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