Multicomponent Mn-Cu-based damping alloy and preparation method thereof
A damping alloy, mn-cu technology, applied in the field of multi-component Mn-Cu-based damping alloy and its preparation, can solve the problems of unfavorable mechanical properties, reduced damping properties or mechanical properties, poor casting properties, poor corrosion resistance, etc. The effect of promotion, reduction of casting performance, and improvement of corrosion resistance
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[0031] A preparation method of a multi-element Mn-Cu base damping alloy, comprising the following steps:
[0032] Step 1: weighing each raw material according to the target composition ratio of the multi-element Mn-Cu-based damping alloy;
[0033] Step 2: Place the above-mentioned raw materials from high to low according to the degree of volatilization and difficulty, and place them from top to bottom for vacuum melting to obtain alloy ingots, and obtain the required samples through EDM;
[0034] Step 3: The sample obtained in step 2 is subjected to solution treatment at 800-900°C for 2-24 hours, and then water-cooled and quenched;
[0035] Step 4: aging the sample treated in step 3 at 380-480° C. for 0.5-10 hours, and then water-cooling and quenching to obtain the required multi-element Mn—Cu-based damping alloy.
[0036] The finally obtained multi-component Mn-Cu based damping alloy has γMnCu dendrites, and the segregation phenomenon of the alloy becomes smaller and smaller...
Embodiment 1
[0038] A preparation method of a multi-element Mn-Cu base damping alloy, comprising the following steps:
[0039] Step 1: According to Mn 50.5wt.%, Cu 42.9wt.%, Zn 2.0wt.%, Al 1.5wt.%, Sn1.0wt.%, Si 0.1wt.%, Cr 1.0wt.%, Ni 1.0wt. % Composition Proportion Weigh each raw material (raw material adopts elemental Mn block, Cu block, Zn block, Al block, Sn block, Si block, Cr block and Ni block, and the purity of each raw material will be as high as possible).
[0040] Step 2: Put the raw materials in step 1 into the crucible in the vacuum induction melting furnace, and arrange them from bottom to top in order of melting point from low to high; vacuum the vacuum induction melting furnace to 1×10 -3 ~1×10 -1 Pa, fill the vacuum induction melting furnace with argon gas with a purity of 99.999vol.% for melting to obtain an alloy ingot; use the electric discharge machining method to cut the above alloy ingot into a size of 10×10×60mm 3 The surface of the sample was polished and dried ...
Embodiment 2
[0045] A preparation method of a multi-element Mn-Cu base damping alloy, comprising the following steps:
[0046] Step 1: According to Mn 59.5wt.%, Cu 32.2wt.%, Zn 2.0wt.%, Al 1.5wt.%, Sn2.0wt.%, Si 0.3wt.%, Cr 1.5wt.%, Ni 1.0wt. % Composition Proportion Weigh each raw material (raw material adopts elemental Mn block, Cu block, Zn block, Al block, Sn block, Si block, Cr block and Ni block, and the purity of each raw material will be as high as possible).
[0047] Step 2: Put the raw materials in step 1 into the crucible in the vacuum induction melting furnace, and arrange them from bottom to top in order of melting point from low to high; vacuum the vacuum induction melting furnace to 1×10 -3 ~1×10 -1 Pa, fill the vacuum induction melting furnace with argon gas with a purity of 99.999vol.% for melting to obtain an alloy ingot; use the electric discharge machining method to cut the above alloy ingot into a size of 10×10×60mm 3 The surface of the sample was polished and dried ...
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