Thermal diffusivity measurements of metastable austenite during continuous cooling

• Published in: International journal of thermal sciences Vol. 47; no. 6; pp. 695 - 708
• Main Authors: Matteis, P., Campagnoli, E., Firrao, D., Ruscica, G.
• Format: Journal Article
• Language: English
• Published: Paris Elsevier Masson SAS 01.06.2008; Elsevier
• Subjects: Analytical model; Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder; Continuous cooling; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Experimental; Flash method; Low-alloy austenite; Materials science; Metastable phase; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations; Physics; Steel quenching; Theoretical; Thermal diffusivity; Analytical model; Flash method; Experimental; Thermal diffusivity; Steel quenching; Continuous cooling; Theoretical; Metastable phase; Low-alloy austenite; Metastable phases; Digital simulation; Low alloy steels; Austenite; Analytical method

The thermal diffusivity of the metastable undercooled austenite is relevant for the quantitative analysis of the carbon and low-alloy steel quench. The standard laser-flash method requires prior thermal equilibrium between the sample and the furnace, which may not be possible to achieve without allo...