Study of the influence of cobalt in the high formability of the Au-Fe system

IF 0.9 Q3 ENGINEERING, MULTIDISCIPLINARY

Revista Facultad De Ingenieria-universidad De Antioquia Pub Date : 2018-10-02 DOI:10.17533/UDEA.REDIN.N89A02

Sandra Milena Restrepo-Arcila, Alejandro Iván Echavarría-Velásquez, Héctor Darío Sánchez-Londoño, Marco Antonio Giraldo-Cadavid

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Abstract

Since ancient times, gold has been used due to its especial properties. Among those properties are the resistance to corrosion (for being noble), its high electrical and thermal conductivity, and also its conspicuous coloration. Gold has been applied in a diversity of subjects such as economy, jewelry, electronic circuits and odontology. The fascinating properties of gold are likely to improve with the preparation of alloys; among those, the Au-Fe alloys constitute some of the most studied nowadays. In this research, we present our results concerning the microstructure of the Au-Fe and Au-Fe-Co alloys. We fabricated gold based alloys with 25% (weight) Fe and then compared their structure and formability to Au-24.5Fe-0.5Co (% weight) to determine the role of cobalt in the alloy. An induction furnace with controlled atmosphere (argon) and conductor crucibles coated with zirconium silicate was used. The samples were characterized by three processes: as-cast , with heat treatment (HT) at T=900°C (1h and 3h) and as-cast centrifuged .

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研究了钴对Au-Fe体系高成形性的影响

自古以来，黄金因其特殊的性能而被使用。这些特性包括耐腐蚀(因为高贵)，高导电性和导热性，以及它的显色性。黄金被广泛应用于经济、珠宝、电子电路和牙科学等领域。随着合金的制备，金的迷人性质有可能得到改善;其中，目前研究最多的是金-铁合金。在本研究中，我们提出了有关Au-Fe和Au-Fe- co合金微观组织的研究结果。我们制备了含25%(重量)铁的金基合金，然后将其结构和成形性与Au-24.5Fe-0.5Co(重量%)进行比较，以确定钴在合金中的作用。采用可控气氛(氩气)感应炉和包覆硅酸锆的导体坩埚。通过三种工艺对样品进行表征:铸态、900℃热处理(1h和3h)和铸态离心。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Facultad De Ingenieria-universidad De Antioquia 工程技术-工程：综合

CiteScore

2.00

自引率

0.00%

发文量

审稿时长

2 months

期刊介绍： Revista Facultad de Ingenieria started in 1984 and is a publication of the School of Engineering at the University of Antioquia. The main objective of the journal is to promote and stimulate the publishing of national and international scientific research results. The journal publishes original articles, resulting from scientific research, experimental and or simulation studies in engineering sciences, technology, and similar disciplines (Electronics, Telecommunications, Bioengineering, Biotechnology, Electrical, Computer Science, Mechanical, Chemical, Environmental, Materials, Sanitary, Civil and Industrial Engineering). In exceptional cases, the journal will publish insightful articles related to current important subjects, or revision articles representing a significant contribution to the contextualization of the state of the art in a known relevant topic. Case reports will only be published when those cases are related to studies in which the validity of a methodology is being proven for the first time, or when a significant contribution to the knowledge of an unexplored system can be proven. All published articles have undergone a peer review process, carried out by experts recognized for their knowledge and contributions to the relevant field. To adapt the Journal to international standards and to promote the visibility of the published articles; and therefore, to have a greater impact in the global academic community, after November 1st 2013, the journal will accept only manuscripts written in English for reviewing and publication. Revista Facultad de Ingeniería –redin is entirely financed by University of Antioquia Since 2015, every article accepted for publication in the journal is assigned a DOI number.