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Reason: Under embargo until 30 November 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.

Effect of Substrate Heating Strategy on Laser Directed Energy Deposited Ti-6Al-4V

thesis
posted on 2022-11-17, 00:42 authored by JIEXIONG WANG
Three substrate heating strategies have been applied to the laser directed energy deposition of Ti-6Al-4V. From experimental and numerical studies on the effects of substrate heating strategies on the in-situ temperature profile, residual stress, microstructure, and mechanical properties of deposited Ti-6Al-4V, the optimal substrate heating strategy has been recommended for the Ti-6Al-4V deposition, regarding the residual stress management and mechanical properties improvement. Furthermore, the mechanisms of residual stress formation and reduction have been established related to the in-situ temperature. The relationship between the in-situ temperature and microstructure of deposited Ti-6Al-4V has also been investigated.

History

Campus location

Australia

Principal supervisor

Wenyi Yan

Additional supervisor 1

Kai Zhang

Additional supervisor 2

Louis Chiu

Additional supervisor 3

Xinhua Wu

Year of Award

2022

Department, School or Centre

Mechanical and Aerospace Engineering

Course

Doctor of Philosophy

Degree Type

DOCTORATE

Faculty

Faculty of Engineering