Composite metal ceramic and application thereof
A composite metal and ceramic technology, applied in the field of 3D printing, can solve the problem of not being able to improve wear resistance and fracture toughness at the same time, and achieve the effect of improving wear resistance and fracture toughness, and improving wear resistance and strength.
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Embodiment 1
[0022] This embodiment is a specific embodiment for preparing product 1. In product 1, the volume ratio of wear-resistant phase, transition phase and toughening matrix phase is 60:15:38. In this embodiment, the wear-resistant phase is Co-Cr alloy, the transition phase is WC-Co alloy, and the toughening matrix phase is Cu-Ni alloy. Wherein, in the transition phase, the mass percentage of Co is 15%, and the particle size of WC is 3000nm.
[0023] The wear-resistant phase was granulated for 90 minutes at a pressure of 20 MPa and a temperature of 1400° C., cooled to room temperature, and passed through a 40 μm sieve to obtain the first product 1.
[0024] The first product 1 was mixed with the transition phase, and wet-milled at 200 r / min for 3 hours to obtain wet-milled product 1. After the wet grinding product 1 is dried at 60°C, it is sieved and granulated in sequence to obtain pellet 1. Pellet 1 was dewaxed at 400° C. for 2 hours in a hydrogen atmosphere to obtain dewaxed p...
Embodiment 2
[0029] This embodiment is a specific embodiment for preparing product 2. In product 2, the volume ratio of wear-resistant phase, transition phase and toughening matrix phase is 70:20:30. In this embodiment, the wear-resistant phase is a nickel-based alloy, the transition phase is a WC-Co alloy, and the toughening matrix phase is a Co-Ni-Cr-Y alloy. Wherein, in the transition phase, the mass percentage of Co is 10%, and the particle size of WC is 5000nm.
[0030] The wear-resistant phase was granulated for 90 minutes at a pressure of 20 MPa and a temperature of 1350° C., cooled to room temperature, and passed through a 60 μm sieve to obtain the first product 2.
[0031] The first product 2 was mixed with the transition phase, and wet-milled at a speed of 150 r / min for 1 hour to obtain the wet-milled product 2. After the wet grinding product 2 is dried at 60° C., it is sieved and granulated in sequence to obtain pellet 2 . Pellet 2 was dewaxed at 300° C. for 1.7 h in a hydrog...
Embodiment 3
[0036] This embodiment is a specific embodiment for preparing product 3. In product 3, the volume ratio of wear-resistant phase, transition phase and toughening matrix phase is 62:25:24. In this embodiment, the wear-resistant phase is 304 stainless steel, the transition phase is WC-Co alloy, and the toughening matrix phase is Co-Ni alloy. Wherein, in the transition phase, the mass percentage of Co is 5%, and the particle size of WC is 20nm.
[0037] The wear-resistant phase was granulated for 90 minutes at a pressure of 20 MPa and a temperature of 1450° C., cooled to room temperature, and passed through a 30 μm sieve to obtain the first product 3.
[0038] The first product 3 was mixed with the transition phase, and wet milled at a speed of 300 r / min for 4 hours to obtain wet milled product 3. After the wet grinding product 3 is dried at 60° C., it is sieved and granulated in sequence to obtain pellet 3 . The pellet 3 was dewaxed at 500° C. for 1.5 h in a hydrogen atmospher...
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Abstract
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