Yong-Ryeol Lee, Mi-Kyung Han, Min-Kang Kim, Won-Jin Moon, Ho-Jun Song, Yeong-Joon Park
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Effect of gold addition on the microstructure, mechanical properties and corrosion behavior of Ti alloys
We performed a systematic investigation of the Ti–xAu (x?=?5, 10, 15, 20, and 40?wt%) alloys to assess the effect of addition of element Au on the microstructure, mechanical properties, and corrosion behavior of commercially pure titanium (cp-Ti). The phase and microstructure were characterized using X-ray diffraction (XRD), optical microscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results indicated that the Ti–xAu alloys containing up to 15?wt% Au showed a hexagonal close-packed α-Ti structure, whereas the Ti–xAu alloys containing more than 20?wt% Au were mainly composed of the α-Ti phase and Ti3Au intermetallic phase. We also investigated the effect of alloying element Au on the mechanical properties (including Vickers hardness and modulus) and corrosion behavior of Ti–xAu binary alloys. The addition of gold to Ti improved its hardness. Electrochemical results showed that the Ti–xAu alloys exhibited improved corrosion resistance than cp-Ti.
期刊介绍：
Gold Bulletin is the premier international peer reviewed journal on the latest science, technology and applications of gold. It includes papers on the latest research advances, state-of-the-art reviews, conference reports, book reviews and highlights of patents and scientific literature. Gold Bulletin does not publish manuscripts covering the snthesis of Gold nanoparticles in the presence of plant extracts or other nature-derived extracts. Gold Bulletin has been published over 40 years as a multidisciplinary journal read by chemists, physicists, engineers, metallurgists, materials scientists, biotechnologists, surface scientists, and nanotechnologists amongst others, both within industry and academia. Gold Bulletin is published in Association with the World Gold Council.
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