Chromium-containing cobalt-based high-temperature alloy and application thereof
A high-temperature alloy, cobalt-based technology, applied in the field of alloys, can solve the problems of lack of coherent strengthening mechanism and no major progress in high-temperature performance, and achieve the effect of enhancing thermal corrosion resistance and tensile performance
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[0051] The present invention will be further described below in conjunction with specific implementation cases, but the present invention is not limited to these embodiments, and examples of the embodiments are shown in the accompanying drawings.
[0052] In this embodiment, a chromium-containing cobalt-based high-temperature alloy is prepared, which is composed of Cr, Co, Ni, Al and Ti. The atomic percentage of Cr is 2at.%, Ni is 30at.%, Al is 7.5at.%, and Ti %, the balance is Co; the sum of the atomic percentages of Al and Ti is not more than 10at.%, the sum of the atomic percentages of Cr, Co, Ni, Al and Ti is 100at. %;
[0053] In this example, four cobalt-based superalloy ingots were prepared, and then heat-treated, and the structure and performance of the chromium-containing cobalt-based superalloy and the other three cobalt-based superalloys were compared and analyzed:
[0054] In this embodiment, a vacuum induction melting furnace is used to prepare four cobalt-based superal...
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