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This research aims to understand the fatigue damage evolution in Ti-6Al-4V alloys produced by additive manufacturing.

March 14, 2026CrystalsOpen Access

In Situ Synchrotron Radiation Computed Tomography Study on Fatigue Damage Evolution of Additively Manufactured Ti-6Al-4V Alloy

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In situ synchrotron radiation computed tomography reveals fatigue damage evolution in Ti-6Al-4V alloy, suggesting pathways for improved performance.

This research aims to understand the fatigue damage evolution in Ti-6Al-4V alloys produced by additive manufacturing.
Utilized synchrotron radiation computed tomography for in situ observation.
Analyzed crack propagation dynamics during fatigue testing.
Investigated the role of local high-density zones in damage evolution.
Adjusted process parameters to observe effects on microstructure.
Identified crack bridging and deflection behaviors during fatigue.
Found a strong correlation between the α-phase microstructure and high-density zone distribution.
Demonstrated that modifying cooling rates and temperature gradients influences fatigue properties.

Wang et al. (2026) studied this question.

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In situ synchrotron radiation computed tomography reveals fatigue damage evolution in Ti-6Al-4V alloy, suggesting pathways for improved performance.