High-entropy alloy reinforced copper-based wear-resistant and corrosion-resistant coating and preparation method thereof
A high-entropy alloy and copper-based technology, applied in metal processing equipment, welding equipment, manufacturing tools, etc., can solve problems such as low strength, low hardness, and insufficient wear resistance, and achieve high interface bonding strength, high production efficiency, and easy operation convenient effect
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[0036] The present invention also provides a method for preparing a high-entropy alloy reinforced copper-based wear-resistant and corrosion-resistant coating, the specific steps are as follows:
[0037] Step 1: Prepare metal drug core powder: the atomic percentage of each component in the drug core is 20% to 30% of chromium, 20% to 30% of iron, 20% to 30% of manganese, 20% to 30% of nickel, the above components The sum of the atomic percentages is 100%; after converting the above components into mass fractions, weigh the corresponding metal powder, mix them uniformly in a ball mill, and set aside;
[0038] In step 1, the copper element in the high-entropy alloy reinforcement phase is provided by pure copper strips.
[0039] In step 1, the ball milling parameters are: rotating speed 450r / min, ball milling time 24h, forward and reverse 15min / time, ball-to-material ratio 15:1.
[0040] Step 2: Make flux-cored welding wire: Clean the 7mm×0.2mm pure copper strip with alcohol and p...
Embodiment 1
[0048]Step 1: Prepare metal core powder according to the following atomic percentages: chromium 20%, iron 20%, manganese 30%, nickel 30%, the sum of the atomic percentages of the above components is 100%, and the copper element is provided by pure copper strips; the above After the components are converted into mass fractions, the metal powder is weighed and mixed evenly in the ball mill for later use. The parameters of the ball mill are: rotating speed 450r / min, ball milling time 24h, forward and reverse 15min / time, ball-to-material ratio 15:1;
[0049] Step 2: Make flux-cored welding wire: Clean the 7mm×0.2mm pure copper strip with alcohol and place it on the wire drawing machine, and use the mold to pre-press the U-shaped groove, and then fill the flux core powder mixed in step 1 into the copper strip U In the groove, the filling rate is controlled at 25wt.% to 30wt.%. Use molds with different apertures to close and reduce the diameter of the welding wire, and finally make ...
Embodiment 2
[0055] Step 1: Prepare the metal core powder according to the following atomic percentages: chromium 25%, iron 20%, manganese 25%, nickel 30%, the sum of the above atomic percentages is 100%, and the copper element is provided by pure copper strip; the above After the components are converted into mass fractions, the metal powder is weighed and mixed evenly in the ball mill for later use. The parameters of the ball mill are: rotating speed 450r / min, ball milling time 24h, forward and reverse 15min / time, ball-to-material ratio 15:1;
[0056] Step 2: Make flux-cored welding wire: Clean the 7mm×0.2mm pure copper strip with alcohol and place it on the wire drawing machine, and use the mold to pre-press the U-shaped groove, and then fill the flux core powder mixed in step 1 into the copper strip U In the groove, the filling rate is controlled at 25wt.% to 30wt.%. Use molds with different apertures to close and reduce the diameter of the welding wire, and finally make a flux-cored w...
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Abstract
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