Beta Iron -

(the Curie point ), its physical properties seemed to shift. They categorized iron into distinct Greek-lettered phases based on temperature: Stable, magnetic iron at room temperature. Beta ( ): What they thought was a new non-magnetic phase. Gamma ( ): A legitimate structural change starting at 912∘C912 raised to the composed with power C The Scientific "Twist"

In the late 1800s, metallurgists noticed that when iron reached roughly 768∘C768 raised to the composed with power C beta iron

The "proper story" emerged when advanced X-ray crystallography proved that as a separate crystal structure. (the Curie point ), its physical properties seemed to shift

Today, the term is mostly obsolete in formal metallurgy, as scientists realized the " " phase was just alpha iron without its magnetic pull. Gamma ( ): A legitimate structural change starting

The atoms in "beta iron" stay in the exact same body-centered cubic (BCC) arrangement as alpha iron. The Only Change: The iron simply loses its magnetism.

💡 The "Beta Iron" story is a classic example of scientific evolution, where better tools revealed that a supposed "new form" of metal was just a familiar one behaving differently.