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


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.


Nickel Sulfide Corrosion Resistance Structural Material High Resistance 
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© Kluwer Academic/Plenum Publishers 2000

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  • I. V. Oryshych

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