Iron Carbon diagrams over the Years

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By:Cees van de Velde
Last revision: January 15,2004


cvdv@home.nl

Year of publication:1961
Author :M.G.Benz and J.F.Elliott
Source :The Austenite Solidus and Revised Iron-Carbon Diagram, Transactions of the metallurgical society of AIME, Vol.221 (1961), pp. 323-331.


Notes:
The austenite solidus of the iron-carbon system has been determined using a seriea of diffusion couples, each of which consisted of a specimen of austenite held in contact with a melt saturated with austenite. After the equilibrium distribution of carbon had been established by diffusion at a specific temperature, i.e. the austenite specimen had become austenite of the solidus composition, the diffusion couple was cooled, sectioned and analysed for carbon. A revised iron-carbon temperature-composition is presented.


Image iron carbon diagram Benz and Elliott 1961

The solidus and liquidus of the Y-phase region. The work of Adcock has been corrected such that the temperature of the peritectic horizontal is 1499 C.