Detection of quench cracks in metal resulting from heat treatment using dichroism-sensitive photoacoustic microscopy

Hongsung An; Yong-Jae Lee; Eunwoo Park; Arbab Akbar; Myungyung Jeong; Chulhong Kim; Tae Joong Eom

doi:10.1117/12.3002023

12 March 2024 Detection of quench cracks in metal resulting from heat treatment using dichroism-sensitive photoacoustic microscopy

Hongsung An, Yong-Jae Lee, Eunwoo Park, Arbab Akbar, Myungyung Jeong, Chulhong Kim, Tae Joong Eom

Author Affiliations +

Proceedings Volume PC12893, Photonic Instrumentation Engineering XI; PC128930O (2024) https://doi.org/10.1117/12.3002023
Event: SPIE OPTO, 2024, San Francisco, California, United States

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Abstract

In this study, we introduce a measurement system based on DS-PAM (dichroism-sensitive photoacoustic microscopy) for assessing quench cracks. We evaluated a quench crack sample with dimensions of 300 μm in width and 150 μm in depth. Our observations revealed the presence of dichroism specifically at the edges of the crack.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Hongsung An, Yong-Jae Lee, Eunwoo Park, Arbab Akbar, Myungyung Jeong, Chulhong Kim, and Tae Joong Eom "Detection of quench cracks in metal resulting from heat treatment using dichroism-sensitive photoacoustic microscopy", Proc. SPIE PC12893, Photonic Instrumentation Engineering XI, PC128930O (12 March 2024); https://doi.org/10.1117/12.3002023

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