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
|