In situ X-ray diffraction and the internal friction study of the binary yellow 18-carat gold alloy

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 2019 English Publisher:Elsevier BVJournal:Materials Science and Engineering: A, volume 759, pages 514-519 (issn: 0921-5093,

Copyright policy )

Authors: Lamiri, Imene; Abdelbaky, Mohammed S. M.; Martínez-Blanco, David; Mari, Daniele; Hamana, Djamel; García-Granda, Santiago;

doi: 10.1016/j.msea.2019.05.086

handle: 10261/211168

In situ X-ray diffraction and the internal friction study of the binary yellow 18-carat gold alloy

- Summary
- Metrics

Abstract

Phase transitions in AuCu alloy are investigated using in situ temperature XRD and mechanical spectroscopy. The measurements are carried out from room temperature up to 973 K starting from the ordered phase AuCuI. Using a temperature ramp rate of 1 K/min, the following phase transition sequence was recorded on heating: AuCuI - > AuCuI + AuCuII- > AuCuI + AuCuII + A1 - > AuCuII + A1 - > A1. The mechanical (elastic and anelastic) properties are determined by this phase transition sequence. The mechanical spectroscopy, using a forced torsion pendulum, shows a peak due to antiphase boundary movement in the orthorhombic phase AuCuII according to the temperature dependent internal friction tests. The isothermal frequency measurements show several thermally activated peaks in the phase transitions intervals.

Financial support from the Algerian Ministry of Higher Education and Scientific Research (PNE scholarship), Spanish Ministerio de Economía y Competitividad (MAT2016-78155-C2-1-R and FPI grant BES-2011-046948 to MSM.A.), Gobierno del Principado de Asturias (GRUPIN-IDI/2018/170) are acknowledged.

Related Organizations

École Polytechnique Fédérale de Lausanne EPFL
Switzerland
École Normale Supérieure
France
University of Oviedo
Spain
University of Mentouri
Algeria

Impact byBIP!

	selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	2
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Average
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average