Corrosion resistant rare earth alloy and preparation method thereof
A rare earth alloy and corrosion-resistant technology, applied in the field of corrosion-resistant rare-earth alloys and their preparation, can solve the problems of environmental personal hazards, difficulty in meeting the service life of corrosion-resistant parts of industrial machinery and equipment, etc.
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[0036] A method for preparing the above-mentioned corrosion-resistant rare earth alloy, comprising:
[0037] According to the ratio of various raw materials, silicon, sulfur, chromium, iron, cobalt, nickel, copper, molybdenum, carbon and rare earth are prepared.
[0038] The prepared silicon, sulfur, chromium, iron, cobalt, nickel, copper, molybdenum, carbon and rare earth are mixed to obtain a mixture.
[0039] The mixture is fed into a high temperature furnace and refined in the high temperature furnace to a temperature above 1500° C. to obtain a refined product.
[0040] Use high-pressure water as a coolant to lower the temperature of the refined product, and cool it to a temperature below 200°C within 4 to 10 hours.
[0041] Bearing the above, please refer to Figure 1a and Figure 1b , the corrosion-resistant rare earth alloy prepared by the above preparation method is a spherical powder.
[0042] It can be understood that compared with traditional corrosion-resistant ...
Embodiment 1
[0047] According to the following proportions, prepare respectively: 2.31wt% of silicon, 0.01wt% of sulfur, 29.22wt% of chromium, 28.22wt% of iron, 6wt% of cobalt, 23wt% of nickel, 3.16wt% of copper, 4.4 wt % molybdenum, 3.55 wt % boron, 0.119 wt % carbon and 0.011 wt % rare earths.
[0048] After mixing the prepared above raw materials, a mixture is obtained. The mixture is fed into a high temperature furnace and refined in the high temperature furnace to a temperature above 1500° C. to obtain a refined product. Use high-pressure water as a coolant to lower the temperature of the refined product, and cool it to a temperature below 200° C. within 7 hours to obtain the product.
[0049] Carry out X-diffraction analysis, microcrystalline structure analysis and morphology analysis after corrosion by aqua regia to the obtained corrosion-resistant alloy, the results are shown in figure 2 , image 3 and Figure 4 .
Embodiment 2
[0051] According to the following proportions, prepare respectively: 1.9wt% of silicon, 0.008wt% of sulfur, 29.5wt% of chromium, 25.983wt% of iron, 7.8wt% of cobalt, 22wt% of nickel, 4.5wt% of copper, 3.9 wt% molybdenum, 4.3 wt% boron, 0.09 wt% carbon and 0.019 wt% rare earth.
[0052]After mixing the prepared above raw materials, a mixture is obtained. The mixture is fed into a high temperature furnace and refined in the high temperature furnace to a temperature above 1500° C. to obtain a refined product. Use high-pressure water as a coolant to lower the temperature of the refined product, and cool it to a temperature below 200° C. within 5 hours to obtain the product.
[0053] The prepared corrosion-resistant alloy is thermally sprayed with an electrolyzed water hydrogen generator. There is a clear difference between the parts of the electrolyzed water-oxygen machine that does not use the corrosion-resistant alloy and the parts of the electrolyzed water-based hydrogen mach...
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