Representative materials of nickel-based alloys are:

1. Incoloy alloy, such as Incoloy800, the main component is: 32Ni-21Cr-Ti, Al; it is a heat-resistant alloy;

2. Inconel alloy, such as Inconel600, the main component is; 73Ni-15Cr-Ti, Al; it is a heat-resistant alloy;

3. Hastelloy alloy, namely Hastelloy alloy, such as Hastelloy C-276, the main component is: 56Ni-16Cr-16Mo-4W; it belongs to corrosion-resistant alloy;

4. Monel alloy, namely Monel alloy, such as Monel 400, the main component is: 65Ni-34Cu; it is a corrosion-resistant alloy;

Alloy element

The main alloying elements are chromium, tungsten, molybdenum, cobalt, aluminum, titanium, boron, zirconium and so on. Among them, Cr, Ai, etc. mainly play an anti-oxidation effect, and other elements have solid solution strengthening, precipitation strengthening and grain boundary strengthening.

It has high strength and certain oxidation and corrosion resistance at 650

-1000℃. Due to high enough high temperature strength and oxidation and corrosion resistance, it is often used in the manufacture of aircraft engine blades and rocket engines, nuclear reactors, and energy conversion equipment. High temperature parts.