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Materials Science

, Volume 35, Issue 4, pp 535–540 | Cite as

Improvement of sulfide-corrosion resistance of gas-turbine blades with sufficient heat resistance by rational alloying

  • I. V. Oryshych
Article
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Abstract

We present the results concerning the influence of alloying elements (Cr, Al, Ti Mo, W, Nb, and Co) on sulfide corrosion resistance in a 75% Na2SO4+25% NaCl melt at a temperature of 900°C for 30 h and heat resistance (τ 200 900 ) of nickel alloys. To provide high resistance to sulfide corrosion and longterm strength at the level of τ 200 900 , nickel-base alloys must contain 14–16% Cr, Ti/Al=0.8–1.5 for ∑Al+Ti=6–7.5%, Cr/Al≥6,\(\sqrt {Cr} \), 3–4% Mo, 3–4% W, 4–6% Co, and 1.5–2% Nb.

Keywords

Nickel Sulfide Corrosion Resistance Structural Material High Resistance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Kluwer Academic/Plenum Publishers 2000

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  • I. V. Oryshych

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