A new Ni-base precipitation strengthened alloy is developed to provide 125 ksi minimum yield strength and an excellent combination of ductility and impact strength. Further, testing in various NACE environments (namely level V and VI) has shown that the alloy has excellent Stress Corrosion and Sulfide Stress Corrosion resistance. A number of commercial heats are melted and processed to establish robust processing. This paper will illustrate alloy development methodology, heat treatment to obtain the target properties, mechanical properties, microstructure, and corrosion properties.

Subject
Iron nickel chromium alloys, Test methods, Materials, Corrosion resistant alloys, Yield stress, Nickel based alloys, Mechanical properties, Mechanical failure, Heat, Corrosion resistance, Sulfide stress cracking, Titanium alloys, Yield strength
Keywords:
Ni-based, Alloy 945, sour environments, precipitation hardenable, high strength
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2008
Association for Materials Protection and Performance (AMPP)
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