Alloy 690 shows an excellent resistance to primary water stress corrosion cracking, while Alloy 600 is very susceptible to this degradation mechanisms. This article analyse comparatively the PWSCC behaviour of both Ni-based alloys and associated weld metals 52/152 and 82/182.
Cavitation erosion behavior of Inconel 690 alloy Aug 20, 2008 · For these reasons, Inconel 690, which shows better corrosion resistance, was proposed as an alternative to Inconel 600. Although Inconel 690 has thermal mechanical properties similar to those of Inconel 600, it appears to be significantly more corrosion resistant than the latter.
Aug 15, 2019 · Alloys with nickel above 50% are known as nickel-based corrosion-resistant alloys. Like Austenitic stainless steel, the microstructure of nickel-based alloys is single-phase austenitic without phase change in solid-state, and the grains of base metal
Corrosion and heat resistant nickel alloysMolybdenum provides resistance to pitting and crevice corrosion by wet chloride. It is very powerful with high resistance to fatigue, alloy 625LCF, a lower grade of Inconel alloy 625,it offers good resistance to low cycle and thermal fatigue. Similar to Inconel alloy 600, alloy 625 also provides corrosion resistant and heat resistant behavior.
Inconel - an overview ScienceDirect TopicsThe Inconel 690 material is a kind of austenitic nickel-base superalloy, which has excellent stress corrosion cracking resistance, excellent corrosion resistance, high strength, strong antioxidation, and favorable metallurgy stability (912).
Thermally induced crystal vacancies are less or absent in Inconel material which make them applied in high temperature environments where ordinary steel or aluminum would not stand. The Inconel density changes with the different grades of the material. There are different grades designated by numbers such as 600, 617, 625, 690, 718 and X750.
Inconel Metallurgy for DummiesThe Inconel alloys consist mainly of a group of metal alloys that offer high resistance to corrosive materials and environments. Inconel 690 falls into this category. However, unlike some of the other alloys in the group, it is a high-chromium and nickel alloy.
Nickel Alloy 690 Composition , Inconel 690 Chemical INCONEL alloy 690 has excellent resistance to corrosion in a broad range of aqueous and high temperature environments. Because of its high chromium content, the alloy is particularly resistant to oxidizing conditions. Alloy 690 also offers excellent resistance to attack by sulfur at high temperatures.
INCONEL® 617 (UNS N06617) Nickel-chromium-cobalt-molydenum alloy:INCONEL® 625 (UNS N06625) Nonmagnetic, corrosion and oxidation-resistant, nickel-based alloy Alloy 6B Wronght base cobalt alloy INCONEL® 718 precipitation hardenable nickel-based alloy INCONEL® 718 Aged AMS 5663:Alloy 800/H/HT Iron-nickel-chromium alloy:Alloy 825 Nickel
QUICK REFERENCE GUIDEinconel® alloy 690 (uns n06690, w.nr. 2.4642) (Ni 61.5, Cr 29.0, Fe 9.0) An alloy with excellent resistance to corrosion in applications such as nuclear steam
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Sep 06, 2019 · The alloy valves of CY-40 and Inconel 600 take In as the material code, and the suitable operating temperature is -29~650. The Inconel 600 has high strength and strong oxidation resistance at high temperatures. These alloys prevent stress corrosion cracking of metals caused by chloride ions in humid conditions.Inconel Alloy 690-A New Corrosion Resistant Material* A. INCONEL Alloy 690 (Ni-30Cr-9Fe-0.02C, wt. %), is a new high-chromium nickel-base alloy, designed to provide a stable austenitic structure combined with resistance to corrosion and oxida- tion in aggressive industrial environments at elevated temperatures.