Nickle Based Alloy Materials Global Grades

Nickel based alloys are a type of alloy material mainly composed of nickel. It usually contains other elements such as iron, chromium, titanium, aluminum, etc. to enhance its mechanical properties, corrosion resistance, and high-temperature resistance. Nickel based alloys still exhibit high strength, corrosion resistance, high temperature resistance, oxidation resistance, and wear resistance at temperatures ranging from 650 to 1000 ℃, making them widely used in fields such as aerospace, chemical engineering, petroleum, energy, shipbuilding, and nuclear industry. Nickel based alloys also have good machinability and can be manufactured into various shapes and sizes of parts through processes such as forging, heat treatment, cold deformation, welding, etc.
Composition and properties of nickel based alloys
There are three main reasons why nickel based high-temperature alloys are widely used. Firstly, nickel based alloys can dissolve more alloy elements and maintain a stable structure. Secondly, compared to iron based and cobalt based high-temperature alloys, nickel based alloys can form coherent ordered A3B type intermetallic compounds γ The Ni3 (Al, Ti) phase can effectively enhance the strength of the alloy and make it more efficient. High temperature strength. Similarly, nickel based alloys contain chromium, which makes them more resistant to oxidation and gas corrosion than iron based high-temperature alloys.
Nickel based alloys contain various elements, among which chromium mainly plays a role in oxidation and corrosion resistance, while other elements are mainly used to strengthen alloys. According to the strengthening methods, it can be divided into three categories: solid solution strengthening elements, such as tungsten, molybdenum, cobalt, chromium, vanadium, etc; Precipitation strengthening elements such as aluminum, titanium, niobium, and tantalum; Grain boundary strengthening elements such as boron, zirconium, magnesium, and rare earth elements.

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