A kind of preparation method of molybdenum base alloy coating
A molybdenum-based alloy and coating technology, which is applied in the field of preparation of molybdenum-based alloy coatings, can solve problems such as inconsistent thermal expansion coefficients and high bonding strength, and achieve the effects of solving inconsistent thermal expansion coefficients, high bonding strength, and improving hardness
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Embodiment 1
[0068] The chemical composition and mass percentage of the molybdenum-based alloy coating in this embodiment are: Cu: 5%, Zr: 0.15%, Ti: 0.6%, C: 0.06%, Mo: 94.19%.
[0069] 1. Pretreatment
[0070] Mo powder, Cu powder, TiH 2 , ZrH 2 , Graphite powder is batched according to the ratio of mass ratio 94.19: 5: 0.6: 0.15: 0.06. Mix in a planetary ball mill for 10 hours at a ball-to-material ratio of 10:1, and add a little absolute ethanol during mixing;
[0071] Take the 304 stainless steel to be sintered, pre-grind, polish and ultrasonically clean the 304 stainless steel surface to be bonded, and vacuum dry;
[0072] Select nickel foil with a thickness of 100um and a purity of not less than 99.0% as the intermediate transition layer, and polish and polish both sides of the nickel foil;
[0073] 2. Modeling
[0074] Take the graphite mold, put the processed 304 stainless steel substrate, nickel foil, and Mo-Ti-Zr-Cu-C alloy powder into the graphite female mold from bottom t...
Embodiment 2
[0085] The chemical composition and mass percentage of the molybdenum-based alloy coating in this embodiment are: Cu: 10%, Zr: 0.08%, Ti: 0.5%, C: 0.02%, Mo: 89.4%.
[0086] 1. Pretreatment
[0087] Mo powder, Cu powder, TiH 2 , ZrH 2 , Graphite powder is batched according to the ratio of mass ratio 89.4: 10: 0.5: 0.08: 0.02. Mix in a planetary ball mill for 10 hours at a ball-to-material ratio of 10:1, and add a little absolute ethanol when mixing.
[0088] Take the 304 stainless steel to be sintered, pre-grind, polish and ultrasonically clean the 304 stainless steel surface to be bonded, and vacuum dry;
[0089] Select nickel foil with a thickness of 100um and a purity of not less than 99.0% as the intermediate transition layer, and polish and polish both sides of the nickel foil;
[0090] 2. Modeling
[0091] Take the graphite mold, put the processed 304 stainless steel substrate, nickel foil, and Mo-Ti-Zr-Cu-C alloy powder into the graphite female mold from bottom to ...
Embodiment 3
[0102] The chemical composition and mass percentage of the molybdenum-based alloy coating in this embodiment are: Cu: 30%, Zr: 0.12%, Ti: 0.4%, C: 0.04%, Mo: 69.44%.
[0103] 1. Pretreatment
[0104] Mo powder, Cu powder, TiH 2 , ZrH 2 , Graphite powder is batched according to the ratio of mass ratio 69.44: 30: 0.4: 0.12: 0.04. Mix in a planetary ball mill for 10 hours at a ball-to-material ratio of 10:1, and add a little absolute ethanol when mixing.
[0105] Take the 304 stainless steel to be sintered, pre-grind, polish and ultrasonically clean the 304 stainless steel surface to be bonded, and vacuum dry;
[0106] Select nickel foil with a thickness of 100um and a purity of not less than 99.0% as the intermediate transition layer, and polish and polish both sides of the nickel foil;
[0107] 2. Modeling
[0108] Take the graphite mold, put the processed 304 stainless steel substrate, nickel foil, and Mo-Ti-Zr-Cu-C alloy powder into the graphite female mold from bottom t...
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