A Precipitation Phenomenon of Titanium Compounds in Aluminum Melts and the Refinement Fading Mechanism of the Al-5Ti-0.62C Master Alloy

The Al-5Ti-0.62C master alloy was prepared through a method of thermal explosion in molten aluminum. The process of remelting and refining of commercially pure aluminum was conducted, and precipitation samples with different heat-treatment times were obtained. Scanning electron microscopy (SEM), X-r...

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Main Authors: Wanwu Ding, Wenjun Zhao, Tiandong Xia
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2015/430156
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author Wanwu Ding
Wenjun Zhao
Tiandong Xia
author_facet Wanwu Ding
Wenjun Zhao
Tiandong Xia
author_sort Wanwu Ding
collection DOAJ
description The Al-5Ti-0.62C master alloy was prepared through a method of thermal explosion in molten aluminum. The process of remelting and refining of commercially pure aluminum was conducted, and precipitation samples with different heat-treatment times were obtained. Scanning electron microscopy (SEM), X-ray diffraction (XRD), optical microscopy (OM), and other techniques were used to analyze the microstructure of the precipitates at the bottom of the samples so as to explore the fading mechanism of Al-Ti-C alloy refinement. The results showed that an obvious precipitation phenomenon of titanium compounds existed in the remelted Al-5Ti-0.62C master alloy and that there were both TiC compounds and TiAl3 compounds in the precipitates; in the refined pure aluminum samples, the precipitates were mainly TiC compounds. Precipitation of titanium compounds in aluminum melting is the main cause of fading in the refinement effect of an Al-Ti-C master alloy.
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issn 1687-8434
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publishDate 2015-01-01
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series Advances in Materials Science and Engineering
spelling doaj-art-63fc8c24d02c40f593e6801463658ac72025-02-03T05:58:04ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/430156430156A Precipitation Phenomenon of Titanium Compounds in Aluminum Melts and the Refinement Fading Mechanism of the Al-5Ti-0.62C Master AlloyWanwu Ding0Wenjun Zhao1Tiandong Xia2School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, ChinaSchool of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, ChinaSchool of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, ChinaThe Al-5Ti-0.62C master alloy was prepared through a method of thermal explosion in molten aluminum. The process of remelting and refining of commercially pure aluminum was conducted, and precipitation samples with different heat-treatment times were obtained. Scanning electron microscopy (SEM), X-ray diffraction (XRD), optical microscopy (OM), and other techniques were used to analyze the microstructure of the precipitates at the bottom of the samples so as to explore the fading mechanism of Al-Ti-C alloy refinement. The results showed that an obvious precipitation phenomenon of titanium compounds existed in the remelted Al-5Ti-0.62C master alloy and that there were both TiC compounds and TiAl3 compounds in the precipitates; in the refined pure aluminum samples, the precipitates were mainly TiC compounds. Precipitation of titanium compounds in aluminum melting is the main cause of fading in the refinement effect of an Al-Ti-C master alloy.http://dx.doi.org/10.1155/2015/430156
spellingShingle Wanwu Ding
Wenjun Zhao
Tiandong Xia
A Precipitation Phenomenon of Titanium Compounds in Aluminum Melts and the Refinement Fading Mechanism of the Al-5Ti-0.62C Master Alloy
Advances in Materials Science and Engineering
title A Precipitation Phenomenon of Titanium Compounds in Aluminum Melts and the Refinement Fading Mechanism of the Al-5Ti-0.62C Master Alloy
title_full A Precipitation Phenomenon of Titanium Compounds in Aluminum Melts and the Refinement Fading Mechanism of the Al-5Ti-0.62C Master Alloy
title_fullStr A Precipitation Phenomenon of Titanium Compounds in Aluminum Melts and the Refinement Fading Mechanism of the Al-5Ti-0.62C Master Alloy
title_full_unstemmed A Precipitation Phenomenon of Titanium Compounds in Aluminum Melts and the Refinement Fading Mechanism of the Al-5Ti-0.62C Master Alloy
title_short A Precipitation Phenomenon of Titanium Compounds in Aluminum Melts and the Refinement Fading Mechanism of the Al-5Ti-0.62C Master Alloy
title_sort precipitation phenomenon of titanium compounds in aluminum melts and the refinement fading mechanism of the al 5ti 0 62c master alloy
url http://dx.doi.org/10.1155/2015/430156
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