2024-03-28T21:51:22Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00007500
2023-01-16T03:52:59Z
320:321:322
X-Ray Study of Mechanical Properties of TiN Thin Films Coated on Steel by Ion Beam Mixing Method
ITO, Toshimasa
21063
TANAKA, Keisuke
21064
AKINIWA, Yoshiaki
21065
ISHII, Takahiro
21066
MIKI, Yasuhiro
21067
X-ray Stress Analysis
TiN Film
Reuss Model
Residual Stress
Loading Stress
Four-point Bending
Stress-strain Curve
Fracture Strength
The thin films of titanium nitride (TiN) with the thickness of 0.5, 1.0, 2.0, 4.0 μm were coated on a steel substrate by the ion beam mixing method. The film had a strong fiber texture with <110> axis perpendicular to the film surface. The initial residual stress was equi-biaxial compression between -4.4 to -5.6GPa. For all thickness cases, the initial part of the changes of the in-plane stresses in the film due to external tensile loading agreed well with the prediction based on elasticity. While the substrate was under an uniaxial stress, the film was in the biaxial state of stress because of the mismatch of Poisson's ratio. When the measured stress in the film exceeded a certain value, the stress departed from the linear relation and leveled off. The onset of nonlinearity was nearly coincident with the first appearance of cracks. The stresses at the onset of nonlinearity and leveling-off decreased with increasing film thickness. The ratio of Young's modulus between loading and unloading decreased as the film thickness increased.
journal article
The Japan Society of Mechanical Engineers
2003-01
application/pdf
JSME International Journal Series A
1
46
86
92
http://hdl.handle.net/2237/9182
1344-7912
https://nagoya.repo.nii.ac.jp/record/7500/files/JSME_A_46-1-86.pdf
eng
http://ci.nii.ac.jp/naid/10016191084/
日本機械学会
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