Moat, R. J. and Pinkerton, A. J. and Li, L. and Withers, P. J. and Preuss, M. (2009) Crystallographic texture and microstructure of pulsed diode laser-deposited Waspaloy. Acta Metallurgica et Materialia, 57 (4). pp. 1220-1229. ISSN 1359-6454
Full text not available from this repository.Abstract
The role of both laser Pulse length and duty cycle in controlling the grain size and crystallographic texture of diode laser-deposited Waspaloy powder is investigated. Thin-walled test structures of Waspaloy have been produced Using a range of pulse parameters and analyzed by means of scanning electron microscopy and electron backscatter diffraction. Results have been correlated with a simple analytical model of the effect of the laser pulse oil the substrate temperature and melt-pool geometry in order to help explain the trends observed. Findings show that Pulse parameters have a marked effect oil the resulting grain morphology and crystallographic orientation. Modelling has indicated that this arises because the microstructure Lire is highly dependent oil the melt-pool geometry, particularly the inclination angle of the melt-pool boundary.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Acta Metallurgica et Materialia |
| Uncontrolled Keywords: | Laser direct metal deposition (LDMD) ; Nickel alloys ; Texture ; Near-net shape manufacture ; Electron backscatter diffraction |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Departments: | Faculty of Science and Technology > Engineering |
| ID Code: | 59514 |
| Deposited By: | ep_importer_pure |
| Deposited On: | 26 Oct 2012 16:06 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 26 Oct 2012 16:30 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/59514 |
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