04.1 - Aerospace Grade Materials, Structural Analysis, Fatigue and Damage Tolerance

FRACTURE AND GRAIN BOUNDARY DAMAGE IN AM NI-BASED SUPERALLOYS UNDER HIGH-TEMPERATURE TENSILE LOADING

X. Liu¹, D.S. Wei¹, S.Z. Jin, AVIC Manufacturing Technology Institute, China; S. Yang¹, D.X. Yin², B. Niakate², D. Lasne²; ¹Beihang university, China ;²BSS Turbotech Ltd., China

This study investigates the uniaxial tensile behavior at 500°C of an SLM-produced Ni-based superalloy. Macroscopic testing and microstructural analysis examine failure characteristics and grain boundary damage. Findings aim to elucidate damage mechanisms, support constitutive modeling, and enhance aerospace applications.

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DOI: 10.71945/icas2026_0172