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Mechanistic origin of densification and ductility in sintered TZM alloys through suppression of Kirkendall macroporosity
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DOI：10.1016/j.ijrmhm.2026.107920.png)
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Abstract
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• Kirkendall macroporosity limits densification in sintered TZM alloys. • Powder refinement suppresses macropores by reducing diffusion length scales. • Refined powders yield finer grains and more uniform second phases. • Ductility improves through macropore suppression and second-phase refinement. • Powder state governs sintering defects, microstructure and fracture behavior.
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