nickel based superalloys

Superalloys are also called as Heat Resisting Alloys or High Temperature alloys that are extremely important materials. Superalloys are rich in nickel, cobalt and iron. These maintain structural surface and retain their characteristics at the high temperatures under extreme stress and in vigorous environment.   Over the time titanium, aluminum and chromium are successfully added … Continue reading Which Superalloys are highly in demand among worldwide industries?

While in the beginning of 20th century, chromium was included into cobalt, nickel and iron based alloys. The received products were significantly resistant to atmospheric conditions and to oxidation at the elevated temperatures. During World war 2, some of these alloys now comprising of more alloying agents had been used as resistance wires, dental prostheses, cutlery,furnace and … Continue reading Evolution of Superalloys during second world war

Metals are crystalline in nature and in their solid form, the atoms of alloys or metals exhibit different crystallographic structures, usually cubic structures. Some crystal structures are linked with enhanced properties as compare to others. Moreover, crystalline group of atoms maintain orientation relationships. Consistent crystalline clusters are known as grains, and in an alloy, there … Continue reading Strengthening of Superalloys

The reason of development of Nickel based super-alloys is their need for use in applications that need excellent corrosion resistance at the temperatures varying from cryogenic to high limits. Chemical industry is also one of those sectors that widely use these alloys. corrosion resistant nickel alloys  

Inconel alloy 718 was discovered in 1980s for downhole apparatus.  The need for meeting high pressure gas wells demands a high strength alloy with excellent corrosion resistance to gas containing high carbon dioxide and hydrogen sulphide for completion apparatus. The superalloys like Hastelloy C-276 were available and provided outstanding corrosion resistance to the anticipated fluids. … Continue reading Inconel Alloy 718 for oil and gas industry