Study of the Microstructure and Cracking Mechanisms of Hastelloy X Produced by Laser Powder Bed Fusion

Giulio Marchese
Giulio Marchese
Gloria Basile
Gloria Basile
Emilio Bassini
Emilio Bassini
Alberta Aversa
Alberta Aversa

Materials (Basel, Switzerland), Volume 11, Issue 1, 2018.

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Keywords:
Hastelloy X alloyNi-based superalloysXRD analysiscarbideselectron microscopyMore(2+)

Abstract:

Hastelloy X (HX) is a Ni-based superalloy which suffers from high crack susceptibility during the laser powder bed fusion (LPBF) process. In this work, the microstructure of as-built HX samples was rigorously investigated to understand the main mechanisms leading to crack formation. The microstructural features of as-built HX samples cons...More

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