Effect of HfO2 dispersoids on the microstructure of a Ni-Cr-Al-Ti superalloy processed by laser-based powder-bed fusion

The effects of 1 wt% HfO2 nano-dispersoid addition on the microstructure of a high-γ' Ni-8.5Cr-5.5Al-1Ti (wt%) model superalloy are investigated after manufacturing via laser-based powder-bed fusion (PBF-LB). Despite their very high melting point, HfO2 dispersoids are not fully stable during th...

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Bibliographic Details
Main Authors: Anthony De Luca, Christoph Kenel, David C. Dunand, Christian Leinenbach
Format: Article
Language:English
Published: Elsevier 2023-07-01
Series:Additive Manufacturing Letters
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2772369023000208