Monash University

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Reason: Under embargo until January 2023. After this date a copy can be supplied under Section 51(2) of the Australian Copyright Act 1968 by submitting a document delivery request through your library

Additive Manufacturing of Nickel-based Hastelloy X Superalloy by Electron and Laser-based Powder Bed Fusion

posted on 2022-01-06, 06:09 authored by AMAL SHAJI KARAPUZHA
This thesis examines the effect of microstructure on the room and elevated temperature mechanical properties of nickel-based Hastelloy X superalloy manufactured by electron beam powder bed fusion and laser based powder bed fusion process. It identifies the influence of columnar microstructure on the fatigue resistance at elevated temperature, the role of powder bed temperature in carbide precipitation, and also the impact of post-fabrication treatments towards improving the fatigue crack growth behaviour by alleviation of tensile residual stress.


Campus location


Principal supervisor

Aijun Huang

Additional supervisor 1

Xinhua Wu

Additional supervisor 2

Darren Fraser

Year of Award


Department, School or Centre

Materials Science and Engineering


Doctor of Philosophy

Degree Type



Faculty of Engineering