Full Text:   <2594>

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CLC number: O343.1; O346.1; O348.3

On-line Access: 2016-01-06

Received: 2015-06-13

Revision Accepted: 2015-11-09

Crosschecked: 2015-12-16

Cited: 0

Clicked: 3802

Citations:  Bibtex RefMan EndNote GB/T7714


Xi-shu Wang


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Journal of Zhejiang University SCIENCE A 2016 Vol.17 No.1 P.65-75


Evaluation of the critical stress of anodized coating-AZ91D substrate using SEM in-situ technology

Author(s):  Xi-shu Wang, Xing-wu Guo, Yuzo Nakamura, Hui-hui Yang, Pan Pan

Affiliation(s):  1Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China; more

Corresponding email(s):   xshwang@tsinghua.edu.cn

Key Words:  Magnesium alloy, Anodized coating, Material mechanics, Flexural stress, Cracking behavior

Xi-shu Wang, Xing-wu Guo, Yuzo Nakamura, Hui-hui Yang, Pan Pan. Evaluation of the critical stress of anodized coating-AZ91D substrate using SEM in-situ technology[J]. Journal of Zhejiang University Science A, 2016, 17(1): 65-75.

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journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

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%T Evaluation of the critical stress of anodized coating-AZ91D substrate using SEM in-situ technology
%A Xi-shu Wang
%A Xing-wu Guo
%A Yuzo Nakamura
%A Hui-hui Yang
%A Pan Pan
%J Journal of Zhejiang University SCIENCE A
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1500178

T1 - Evaluation of the critical stress of anodized coating-AZ91D substrate using SEM in-situ technology
A1 - Xi-shu Wang
A1 - Xing-wu Guo
A1 - Yuzo Nakamura
A1 - Hui-hui Yang
A1 - Pan Pan
J0 - Journal of Zhejiang University Science A
VL - 17
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SP - 65
EP - 75
%@ 1673-565X
Y1 - 2016
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1500178

Experimental investigations of the micro cracking behavior of a coating-substrate structure were carried out in-situ with a scanning electron microscope (SEM). An anodized coating layer was deposited on an AZ91D substrate by the galvanize pulse method. Results indicated that the failure mechanism of the coating-substrate structure was due to a mismatch of micro deformation between the coating and substrate. The micro deformations induced by different failure models were cracking, spalling, or delamination. The failure models were validated using theoretical, experimental, and digital image correlation methods. The critical stress of failure can be evaluated by measuring the biaxial stress.

A nice MS reporting the in-situ investigation on cracking of coating/substrate interface for PEO formed coating on Mg alloy.


方法:将如图1所示的涂层-基体结构试件断面仔细抛光后置于扫描电镜的真空腔内;边加载边观察断面中损伤行为的变化,特别是界面附近的变形和开裂状态;比较所对应的加载点位移和载荷大小,并把其作为评价损伤行为的力学 参数。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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