Quantifying adhesion energy of mechanical coatings at atomistic scale
Quantifying adhesion energy of mechanical coatings at atomistic scale
复制标题
在原子尺度上量化机械涂层的附着能
DOI:
10.1016/j.apsusc.2011.09.102
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发表时间:
2011-12
影响因子:
6.7
通讯作者:
Wang, Zhongchang
中科院分区:
文献类型:
--
作者:
Yin, Deqiang;Peng, Xianghe;Qin, Yi;Feng, Jiling;Wang, Zhongchang
Coatings of transition metal compounds find widespread technological applications where adhesion is known to influence or control functionality. Here, we, by first-principles calculations, propose a new way to assess adhesion in coatings and apply it to analyze the TiN coating. We find that the calculated adhesion energies of both the (111) and (001) orientations are small under no residual stress, yet increase linearly once the stress is imposed, suggesting that the residual stress is key to affecting adhesion. The strengthened adhesion is found to be attributed to the stress-induced shrinkage of neighbouring bonds, which results in stronger interactions between bonds in TiN coatings. Further finite elements simulation (FEM) based on calculated adhesion energy reproduces well the initial cracking process observed in nano-indentation experiments, thereby validating the application of this approach in quantifying adhesion energy of surface coating systems.
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DOI:
10.1134/s0031918x1002002x
发表时间:
2010-03
期刊:
The Physics of Metals and Metallography
影响因子:
--
作者:
A. Solov'ev;N. Sochugov;K. Oskomov
通讯作者:
A. Solov'ev;N. Sochugov;K. Oskomov
影响因子:
2.1
作者:
Jong-jin Kim;J. Jeong;Kwang-Ryeol Lee;D. Kwon
通讯作者:
Jong-jin Kim;J. Jeong;Kwang-Ryeol Lee;D. Kwon
影响因子:
6
作者:
Chao-yu Lee;M. Dupeux;W. Tuan
通讯作者:
Chao-yu Lee;M. Dupeux;W. Tuan
DOI:
10.1088/0965-0393/1/2/001
发表时间:
1993
影响因子:
1.8
作者:
Xiaopeng Xu;A. Needleman
通讯作者:
Xiaopeng Xu;A. Needleman
影响因子:
13.1
作者:
Geubelle, PH;Baylor, JS
通讯作者:
Baylor, JS