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“Inward Growth” Corrosion and Its Growth Mechanism in Ancient Chinese Bronzes

Published online by Cambridge University Press:  27 January 2020

Bingjie Li
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan 430072, China Center for Electron Microscopy, Wuhan University, Wuhan 430072, China
Xudong Jiang
Affiliation:
Hubei Provincial Museum, Wuhan 430077, China
Yin Tu
Affiliation:
Huangzhou Museum, Huanggang 438000, China
Qiang Fu
Affiliation:
Center for Electron Microscopy, Wuhan University, Wuhan 430072, China
Chunxu Pan*
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan 430072, China Center for Electron Microscopy, Wuhan University, Wuhan 430072, China
*
*Author to whom correspondence should be addressed. E-mail: cxpan@whu.edu.cn.
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Abstract

We divide the corrosion products on ancient bronzes into two categories, i.e., "inward growth" and “outward growth” corrosions. Several selected Chinese ancient bronzes with the "inward growth” corrosion are studied; and their chemical compositions, microstructures and morphologies are characterized systematically. According to the results, it is found that the “inward growth” corrosion can be further divided into three types, i.e., "noble patina", "noble-like patina" and "lamellar peeling patina". We propose that the growth mechanism of the “inward growth” corrosion is that the corrosion initiates at and develops along α-Cu phase. Furthermore, the effect of alloy Sn content on the “inward growth” corrosion is also studied.

Type
Articles
Copyright
Copyright © Materials Research Society 2020

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Footnotes

These authors contributed equally to this work.

References

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