Estimation of Spatio-temporal Temperature Evolution During Laser Spot Melting Using In Situ Dynamic X-Ray Radiography.

Autor: Kamath, Rakesh R., Choo, Hahn, Fezzaa, Kamel, Babu, Sudarsanam Suresh
Předmět:
Zdroj: Metallurgical & Materials Transactions. Part A; Apr2024, Vol. 55 Issue 4, p983-991, 9p
Abstrakt: A novel approach to estimate the sub-surface temperature (and thermal gradient) distribution during melting/solidification and its time evolution using in situ dynamic synchrotron X-ray radiography data is proposed in this work. The proposed approach uses the Beer–Lambert's law as a physical basis and is demonstrated using an in situ laser spot-melting experiment on Ti–6Al–4V alloy. This methodology also incorporates the recipe described previously by Gilbert and Deinert allowing for the extraction of a "radially-resolved" temperature distribution. [ABSTRACT FROM AUTHOR]
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