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Article | REF: BM7930 V1

Additive manufacturing of Ti-6Al-4V parts by powder bed fusion

Authors: Charlotte de FORMANOIR, Stéphane GODET, Mohamed GOUNE, Sylvie BORDÈRE, Stéphane GORSSE

Publication date: July 10, 2020 | Lire en français

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    3. Post-processing of additively manufactured Ti-6Al-4V parts

    Post-treatments are designed to improve the mechanical properties of the parts, firstly by eliminating defects inherent to the process (porosity, roughness, residual stresses) and secondly by modifying the microstructure.

    • Hot isostatic pressing

      Removal of internal porosity is typically achieved using Hot Isostatic Pressing (HIP) [M 3 310] . This treatment involves applying a pressure of 1,000 bar (100 MPa) for 2 h at a temperature of 920°C, followed by slow cooling. HIP treatment is extremely effective in eliminating porosities inside...

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