Preparation method of TiB2-WC-Fe-Co-Ni-Cr-Ti molten aluminum corrosion resistant metal ceramic integral material
A tib2-wc-fe-co-ni-cr-ti, metal corrosion technology, applied in the field of aluminum liquid corrosion resistance materials, can solve problems such as poor wettability, achieve low cost, excellent corrosion resistance, and considerable industrial application prospects Effect
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[0045] The preparation method is: the weighed TiB 2 Powder, WC powder, Co powder, Ni powder, Cr powder, Fe powder, and Ti powder are prepared according to the above mass percentages, followed by mixing ball milling, vacuum drying, and spark plasma sintering. Include steps:
[0046] (1) Weigh the powder according to the following mass percentage:
[0047] TiB 2 : 70-88%, WC: 1%-2%, Co: 2.15-6.03%, Ni: 2.15-6.03%, Cr: 1.90-5.31%, Fe: 2.04-5.72%, Ti: 1.76-4.91%.
[0048] The weighed powders were mixed to obtain mixed powders.
[0049] (2) Pour the mixed powder into a ball mill jar, and add balls according to the ball-to-material ratio of 5:1, and then add an appropriate amount of absolute ethanol, and adopt a wet ball milling process. The rotating speed of the ball mill is 300r / min, and the ball milling time is 3 hours.
[0050] (3) Put the ball-milled powder into a vacuum drying oven for drying at a drying temperature of 70-90° C., a vacuum degree of -0.1 MPa, and a drying ...
Embodiment 1
[0054] a TiB 2 -WC-Fe-Co-Ni-Cr-Ti aluminum liquid corrosion resistant cermet monolithic material preparation method, comprising the following steps: (1) sample preparation: TiB 2 , WC, Fe, Co, Ni, Cr, Ti powders are weighed according to the following mass percentages: TiB 2 Powder 88%, WC powder 2%, Co powder 2.15%, Ni powder 2.15%, Cr powder 1.90%, Fe powder 2.04%, Ti powder 1.76%. The TiB 2 The purity of the powder is 99.5%, and the particle size is 99.9%, and the particle size is <15 microns.
[0055] (2) Ball milling: put the above-mentioned weighed mixture into a ball milling jar, and according to the mass ratio of balls to the mixture of 5:1, weigh the required balls and put them into the ball milling jar. The wet ball milling process is adopted, and then an appropriate amount of absolute ethanol is poured into the ball milling tank to cover the powder. The rotating speed of the ball mill was 300r / min, and the ball milling time was 3 hours, wherein every 2 hours, the...
Embodiment 2
[0062] a TiB 2 -WC-Fe-Co-Ni-Cr-Ti aluminum liquid corrosion resistant cermet monolithic material preparation method, comprising the following steps:
[0063] (1) Sample preparation: TiB 2 , WC, Fe, Co, Ni, Cr, Ti powders are weighed according to the following mass percentages: TiB 2 Powder 80%, WC powder 2%, Co powder 3.87%, Ni powder 3.87%, Cr powder 3.43%, Fe powder 3.68%, Ti powder 3.15%.
[0064] The TiB 2 The purity of the powder is 99.5%, and the particle size is 99.9%, and the particle size is <15 microns.
[0065] (2) Ball milling: Put the above-mentioned weighed mixture into a ball milling tank, and according to the mass ratio of balls to the mixture of 4:1, weigh the required balls and put them into the ball milling tank. The wet ball milling process is adopted, and then an appropriate amount of absolute ethanol is poured into the ball milling tank to cover the powder. The rotating speed of the ball mill was 250r / min, and the ball milling time was 2 hours, where...
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