Characteristics of phase changes induced by ultra-precision raster milling at the surface layer of Zn-Al alloy

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/62169

Title:	Characteristics of phase changes induced by ultra-precision raster milling at the surface layer of Zn-Al alloy
Authors:	Zhang, S To, S
Issue Date:	2016
Source:	Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture, 2016, v. 230, no. 8, p. 1480-1488
Abstract:	Ultra-precision raster milling induces phase changes and crystal orientation changes of Zn-Al alloy at its machined surface up to a thickness of several hundreds of nanometers. In this study, the phase change characteristics of Zn-Al alloy at different penetration depths have been discussed using X-ray diffraction and nano-indentation tests. A phase-change-distribution function to depth has been proposed to calculate phase change thickness based on the X-ray diffraction measurement, which was verified by the nano-indentation tests. It is found that phase changes sharply decrease along the penetration depth and the Bragg angle first decreases and then increases back, less than the original value. Significantly, the proposed method is nondestructive to characterize phase change characteristics and measure phase change thickness.
Keywords:	Nano-indentation Phase change Ultra-precision raster milling X-ray diffraction
Publisher:	SAGE Publications
Journal:	Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture
ISSN:	0954-4054
EISSN:	2041-2975
DOI:	10.1177/0954405416654193
Appears in Collections:	Journal/Magazine Article

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