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http://hdl.handle.net/10397/6915
Title: | Laser-processing-induced phase transformation in Zn- Al-based alloy | Authors: | Zhu, YH Chavez-Carvayar, JA Man, HC Villagran, M |
Issue Date: | Nov-1999 | Source: | Journal of materials research, Nov. 1999, v. 14, no. 11, p. 4188-4194 | Abstract: | Microstructure and phase transformation of a furnace-cooled eutectoid Zn–Al-based alloy were studied after laser beam bombardment using low-angle x-ray diffraction (XRD) and backscattered scanning electron microscopy (BSEM). It was found that the microstructure of the laser-beam-treated specimen consisted mainly of the supersaturated Zn-rich β′[sub s] phase particulates of about 1−2 μm in diameter. Three structure morphologies were observed. Microcracking occurred in the laserbeam-affected zone during laser processing. Two laser-processing-induced phase transformations, i.e., decomposition of the η′[sub FC] phase and a four-phase transformation, were detected using XRD and BSEM techniques, similar to phase transformations that occurred in the same eutectoid Zn–Al-based alloy after various thermal and thermomechanical processing procedures. | Keywords: | Lser beam effects Metallographic microstructure Microcracking Morphology Phase transitions Scanning electron microscopy Supersaturation X ray analysis |
Publisher: | Cambridge University Press | Journal: | Journal of materials research | ISSN: | 0884-2914 | EISSN: | 2044-5326 | DOI: | 10.1557/JMR.1999.0567 | Rights: | ©1999 Materials Research Society The following article "Y. H. Zhu, J. A. Chavez-Carvayar, H. C. Man and M. Villagran (1999). Laser-processing-induced phase transformation in Zn–Al-based alloy. Journal of Materials Research, 14(11), pp 4188-4194. doi:10.1557/JMR.1999.0567." is available at http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7983551 |
Appears in Collections: | Journal/Magazine Article |
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Zhu_Laser-processing-induced_Zn-Al-based_Alloy.pdf | 1.4 MB | Adobe PDF | View/Open |
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