A rhenium-containing high-strength hot-corrosion-resistant nickel-based single crystal superalloy
A technology of nickel-based single crystal and high-temperature alloys, which is applied in the field of nickel-based single-crystal superalloys, can solve the problem of few types of hot-corrosion-resistant single-crystal alloys, and achieve excellent hot-corrosion resistance and stable structure
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Embodiment 1-3
[0029] See Table 1 for the chemical composition of the nickel-based single crystal superalloy sample of the present invention. For convenience of comparison,
[0030] Table 1 also lists the chemical composition of the typical first-generation nickel-based single crystal superalloy PWA1483 and the typical second-generation single crystal superalloy Reńe N5.
[0031] Table 1 Alloy of the present invention (Example 1-8) and PWA1483, ReńeN5 chemical composition list (wt.%)
[0032] Alloy
[0033] Note: "Remainder" in the column of Ni content in the table means "balance".
Embodiment 4
[0035] The Larson-Miller curve comparison of Example 1 alloy of the present invention and typical first-generation nickel-based single-crystal superalloy PWA1483 and typical second-generation single-crystal superalloy Reńe N5 is shown in figure 1 . The durability performance of the alloy of the present invention is equivalent to that of Reńe N5 and higher than that of PWA1483.
Embodiment 5
[0037] The comparison between the 900°C hot corrosion performance of the alloy of Example 2 of the present invention and the hot corrosion resistant alloy M38 is shown in figure 2 .
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