Novel platinum-iridium-based ultrahigh-temperature multi-component alloy bonding layer capable of being used at temperature of 1300 DEG C or above, and preparation method thereof
A multi-element alloy and bonding layer technology, which is applied in metal material coating process, coating, melting spray plating, etc., can solve the problems such as the diffusion of ultra-high temperature alloy bonding layer materials, coatings and matrix elements.
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Embodiment 1
[0037]A new type of platinum-iridium-based ultra-high temperature multi-component alloy bonding layer that can be used above 1300 ° C. The bonding layer includes the following elements, in terms of mass percentage: 9.2% Ir, 16.4% Al, 3.6% Cr, 3.5% Ru, 2.4% Hf, 8.1% Ni, 4.2% Co, the balance being Pt.
[0038] A method for preparing a novel platinum-iridium-based ultra-high temperature multi-component alloy bonding layer that can be used above 1300°C, specifically comprising the following steps:
[0039] S100. Selection and smelting of alloy components to obtain alloy ingots:
[0040] S110, weighing the raw material powder of the alloying elements according to the above mass ratio, and performing batching.
[0041] S120, pressing the homogeneously mixed raw material powder into a block, and pre-sintering at 950° C. for 2 hours in a hydrogen atmosphere.
[0042] S130, place the pre-fired sample in a vacuum arc melting furnace, and evacuate the furnace to 1×10 -6 Pa, then use t...
Embodiment 2
[0051] The difference between Example 2 and Example 1 is that the bonding layer includes the following elements, by mass percentage: 9.2% Ir, 16.4% Al, 3.6% Cr, 3.5% Ru, 2.4% Hf, 3.2% Zr, 8.1% Ni , 4.2% Co, 0.84% rare earth elements, and the balance is Pt.
Embodiment 3
[0053] The difference between Example 3 and Example 1 is that the bonding layer includes the following elements, in mass percentage: 9.2% Ir, 16.4% Al, 3.6% Cr, 3.5% Ru, 2.4% Hf, 3.2% Zr, 1.6% Ta , 8.1% Ni, 4.2% Co, 0.63% rare earth elements, and the balance is Pt.
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