Mechanical Performance of Ebm Ti-6al-2sn-4zr-2mo Influenced by the Effects of Different Hot Isostatic Pressing Treatments

Miguel Lopez Gutierrez, University of Texas at El Paso

Abstract

Electron Beam Melting (EBM) is an additive manufacturing process that presents a lower level of internal defects in comparison to Selective Laser Melting (SLM). Pairing Hot Isostatic Pressing (HIP) with Additive Manufactured metal parts, sub-surface voids can be eliminated through high pressure and temperature. This significantly improves fatigue life, impact toughness, creep, rupture strength, and tensile ductility. In this investigation, Ti-6Al-2Sn-4Zr-2Mo samples manufactured in the Arcam’s Q20 system will be tested as per ASTM E8 Standard Test Methods for Tension Testing of Metallic Materials. Different variants of Hot Isostatic Pressing (HIP) treatments were analyzed and compared. Tensile testing was performed on samples, they were cross-sectioned to check for porosity and cracking as well as to analyze density and microstructure before and after HIPing. The results will be compared to those found in the literature. Finally, chemical analysis was conducted to observe element changes and oxygen or nitrogen pickup.

Subject Area

Mechanical engineering|Materials science|Thermodynamics|Physical chemistry

Recommended Citation

Lopez Gutierrez, Miguel, "Mechanical Performance of Ebm Ti-6al-2sn-4zr-2mo Influenced by the Effects of Different Hot Isostatic Pressing Treatments" (2020). ETD Collection for University of Texas, El Paso. AAI28258340.
https://scholarworks.utep.edu/dissertations/AAI28258340

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