a solid solution of ferric carbide or carbon in iron it cools to create pearlite or martensite
- a solid solution of ferric carbide or carbon in iron; cools to form pearlite or martensite
ny metal that carbon or facecentered crystaline structures. Its named after Sir W. C. Roberts Austen. Relate to martensite.
Iron containing carbon and/or various other elements and having a characteristic face-centered crystalline structure. Named following the UNITED KINGDOM metallurgist Sir W. C. Roberts-Austen (1843-1902). See also Martensite.
In short, from Ar 3 to Ar t the excess substance ferrite or cementite, in hypoand hyper-eutectoid steels respectively, progressively crystallizes out as a network or skeleton within the austenite mothermetal, which thus progressively approaches the composition of hardenite, reaching it at Ar t, and there splitting up into ferrite and cementite interstratified as pearlite.