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Lead-Free Oxidation- Resistant Glass-Ceramic Coating for Heat Processing of Ti-6Al-4V Alloy

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Abstract:

Now the oxidation-resistant glass-ceramic coatings have been widely used in reducing surface oxidation of Ti alloys during heat process. In present investigation, a lead-free glass-ceramic coating with wider protection temperature range was developed to protect Ti-6Al-4V alloy from oxidation. The phase compositions of the present coating and the oxygen distributions in the surface layers of Ti-6Al-4V specimens were investigated by means of XRD, as well as the metallographs of cross-section were observed and the depths of oxidized layers were determined by microhardness analysis. The results show that the present glass-ceramic coating can provide the oxidation-resistant effect over the temperature range of 500-1000oC in ambient air, with an environmentally friendly lead-free coating composition.

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Periodical:

Key Engineering Materials (Volumes 373-374)

Pages:

601-604

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.373-374.601

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Online since:

March 2008

Authors:

Min Wei Zhang, Cao Gao, Yue Xia Ding, Jie Tao, Tao Wang

Keywords:

Glass-Ceramic Coating, Lead-Free, Oxidation Resistance, Ti6Al4V Alloy

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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