Abstract
The latent heat of non-equilibrium martensitic transformation in AISI 4340 steel was obtained from experiments to measure the heat transfer coefficient and numerical calculations-using the inverse method based on the finite-difference method-of heat transfer and martensitic transformation kinetics. The average and maximum increases in surface temperature of a cylindrical specimen during oil quenching due to the temperature-dependent latent heat were 43 and 83 °C, respectively, indicating the importance of martensite latent heat for accurate heat treatment simulation.
| Original language | English |
|---|---|
| Pages (from-to) | 1016-1019 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 60 |
| Issue number | 11 |
| DOIs | |
| State | Published - 2009.06 |
Keywords
- FDM
- Heat transfer coefficient
- Inverse method
- Latent heat
- Martensitic transformation
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