Ravi, G. A., Qiu, Chunlei ORCID: https://orcid.org/0000-0002-1899-3229 and Atallah, M. A. 2016. Microstructural control in a Ti-based alloy by changing laser processing mode and power during direct laser deposition. Materials Letters 179 , pp. 104-108. 10.1016/j.matlet.2016.05.038 |
Official URL: http://dx.doi.org/10.1016/j.matlet.2016.05.038
Abstract
Ti-6Al-4V samples have been fabricated by direct laser deposition using different laser powers and two different laser processing modes, continuous wave (CW) mode and CWþPW (pulsed wave) mode. The as-fabricated microstructure was investigated using photography, optical microscopy and secondary electron microscopy. It was found that both laser mode and laser power show significant influence on grain structure. The CW mode generally leads to well-developed large columnar grains whereas the CWþPW mode tends to give rise to much finer equiaxed grains. Higher laser power was found to result in larger grains and coarser microstructure.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Engineering |
Subjects: | T Technology > TN Mining engineering. Metallurgy T Technology > TS Manufactures |
Uncontrolled Keywords: | Direct Laser Deposition; Laser Mode; Ti-6Al-4V; Microstructure |
Publisher: | Elsevier |
Date of Acceptance: | 7 May 2016 |
Last Modified: | 01 Nov 2022 11:04 |
URI: | https://orca.cardiff.ac.uk/id/eprint/93734 |
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