Modelling reaustenitisation from ferrite/cementite mixtures in FeC steels

T. Akbay, R. C. Reed, C. Atkinson

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

The formulation of austenite which occurs upon heating low-alloy steels is known as reaustenitisation. Phase transformation theory applicable to the formulation of austenite from ferrite/cementite mixtures in FeC steels is described. The assumption of local equilibrium is made. Diffusion of carbon in cementite and ferrite is ignored. Under these assumptions, the process is controlled by the diffusion in austenite, the growing phase. Exact solutions to the equations to the equations are compared with results obtained using the finite difference method, for one-dimensional growth. It is found that the finite difference method is subjected to numerical inaccuracies which can be considerable. A method to circumvent this problem is described. Reverse time-temperature-transformation diagrams for FeC steels are presented.

Original languageEnglish
Pages (from-to)1469-1480
Number of pages12
JournalActa Metallurgica Et Materialia
Volume42
Issue number4
DOIs
Publication statusPublished - Apr 1994

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Steel
Austenite
Ferrite
Finite difference method
High strength steel
Carbon
Phase transitions
Heating
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Modelling reaustenitisation from ferrite/cementite mixtures in FeC steels. / Akbay, T.; Reed, R. C.; Atkinson, C.

In: Acta Metallurgica Et Materialia, Vol. 42, No. 4, 04.1994, p. 1469-1480.

Research output: Contribution to journalArticle

Akbay, T. ; Reed, R. C. ; Atkinson, C. / Modelling reaustenitisation from ferrite/cementite mixtures in FeC steels. In: Acta Metallurgica Et Materialia. 1994 ; Vol. 42, No. 4. pp. 1469-1480.
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