constituted a separate phase of matter, modern science defines its unique features through its magnetic and structural behavior: : The defining feature of
: It maintains the Body-Centered Cubic (BCC) lattice structure of . Unlike other transformations (like α→γalpha right arrow gamma beta iron
is its lack of permanent magnetism. Above the Curie point, thermal agitation overcomes the alignment of magnetic moments found in ferromagnetic constituted a separate phase of matter, modern science
: Because it shares the BCC structure with alpha iron, it possesses similar mechanical properties, though it is slightly less dense due to thermal expansion at higher temperatures. Technical Comparison of Iron Phases Common Name Crystal Structure Magnetic State Temperature Range Alpha ( ) Ferromagnetic Beta ( ) Beta Iron BCC Paramagnetic Gamma ( ) Non-magnetic Delta ( ) Delta Ferrite Non-magnetic (PDF) The Beta Iron Controversy Revisited - ResearchGate Technical Comparison of Iron Phases Common Name Crystal
In metallurgy, ( ) refers to a specific non-magnetic state of iron that occurs when alpha iron ( ) is heated above its Curie temperature (