Thermodynamic formula for the Acm temperature of low alloy steels

Seok Jae Lee, Young Kook Lee

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Many thermodynamic studies have been formed to calculate the phase diagrams, which provides various basic information for predicting the quantitative kinetics of phase transformations in low alloy steels. The temperature values on the phase boundaries of austenite/(ferrite + austenite) and austenite/(cementite + austenite) at a certain carbon content are called Ae3 and Acm temperatures of steel. The Ae1 temperature is defined as the eutectoid temperature corresponding to the intersection point of two phase boundaries of austenite. The partitioning effects of alloying elements such as nickel (Ni), chromium (Cr) and molybdenum (Mo) occurring during the austenite decomposition on the phase diagrams of the steels have been investigated with ortho-equilibrium (OE) and paraequilibrium (PE) models in low alloy steels.

Original languageEnglish
Pages (from-to)769-771
Number of pages3
JournalISIJ International
Issue number5
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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