Explanation

As used steel with austenitic structure. Add enough elements such as Ni, Mn, Co, N, Cu, C, etc. to expand the austenite zone or increase the stability of austenite in steel to make austenite become a stable phase at room temperature or even low temperature, and austenitic steel can be obtained. Austenite has a close packed face centered cubic crystal structure, high efficiency of spare filling and better corrosion resistance than ferrite. austenitic steel is widely used as stainless steel with excellent turbidity resistance; The self-diffusion activation energy of iron atoms in austenite is significantly greater than that of self-diffusion atoms in iron. At the same temperature, iron atoms are not easy to diffusion, which makes them have high thermal strength. Therefore, austenitic steel is widely used as heat resistant steel; Austenite is basically non-magnetic, so austenitic steel is also a non-magnetic steel.

Classification