gamma iron

GPTKB entity

Statements (22)
Predicate Object
gptkbp:instanceOf allotrope
phase of iron
gptkbp:alsoKnownAs austenite
gptkbp:chemicalFormula gptkb:Fe
gptkbp:crystalSystem face-centered cubic
gptkbp:density 7.65 g/cm³
gptkbp:discoveredBy Adolf Martens
gptkbp:existsAtTemperatureAbove 912°C
gptkbp:existsAtTemperatureBelow 1394°C
gptkbp:foundIn iron-carbon phase diagram
https://www.w3.org/2000/01/rdf-schema#label gamma iron
gptkbp:importantFor formation of stainless steel
gptkbp:magneticTransition becomes non-magnetic above 770°C (Curie point)
gptkbp:magnetType paramagnetic
gptkbp:meltingPoint 1538°C
gptkbp:namedAfter Sir William Chandler Roberts-Austen
gptkbp:phaseTransitionFrom gptkb:alpha_iron
gptkbp:phaseTransitionTo delta iron
gptkbp:solubilityOfCarbon up to 2.14% at 1147°C
gptkbp:usedIn steelmaking
gptkbp:bfsParent gptkb:iron_(alpha_form)
gptkbp:bfsLayer 7