Magnetic Permeability
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Physical Properties
定義
A measure of a material's ability to support the formation of a magnetic field within itself, indicating how strongly it responds to an applied magnetic field. Ferromagnetic metals like iron and nickel have high permeability.
詳細説明
Austenitic stainless steels (e.g., 304, 316) are generally non-magnetic in the annealed state due to their face-centered cubic structure, whereas ferritic and martensitic grades are magnetic. Magnetic permeability is important in transformer cores, electric motor laminations, and electromagnetic shielding applications. Cold working can induce martensite in austenitic steels, increasing their magnetic response.