scholarly journals Application of X-ray stress measurement for residual stress analysis by inherent strain method - Comparison of cosα and sin2Ψ method-

2017 ◽  
Vol 4 (5) ◽  
pp. 17-00022-17-00022 ◽  
Author(s):  
Mariko MATSUDA ◽  
Keisuke OKITA ◽  
Tomokazu NAKAGAWA ◽  
Toshihiko SASAKI
Keyword(s):  
Residual Stress ◽  
Stress Analysis ◽  
Stress Measurement ◽  
Method Comparison ◽  
X Ray ◽  
Residual Stress Analysis ◽  
Inherent Strain ◽  
Inherent Strain Method ◽  
Strain Method

X-ray Residual Stress Analysis of Zn-Ni Alloy Electroplating Layers

1989 ◽  
Vol 33 ◽  
pp. 171-175
Author(s):  
Toshihiko Sasaki ◽  
Makoto Kuramoto ◽  
Yasuo Yoshioka
Keyword(s):  
Residual Stress ◽  
Corrosion Resistance ◽  
Stress Analysis ◽  
Stress Measurement ◽  
Thin Layers ◽  
High Corrosion Resistance ◽  
Ray Method ◽  
X Ray ◽  
Ni Alloy ◽  
Residual Stress Analysis

Zn-Ni-alloy electroplated steels are one of the surface-treated materials with a high corrosion resistance and are mostly used for automobiles. It is said that the corrosion resistance is more than four times as great as that of Zn-plated steels. Concerning x-ray stress measurement, Kyono et al reported the result of measurement on y (552) planes and showed that the sin2φ diagram was severely curved.X-ray stress analysis in surface-treated materials will become more important. Some problems, however, remain to be studied when we apply the x-ray method to thin layers. For example, the effective x-ray penetration depth may be different from that in ordinary materials. And complex gradients of stresses and compositions may exist.

X-Ray Residual Stress Analysis of Stainless Steel Using cosα Method

2014 ◽  
Vol 922 ◽  
pp. 167-172 ◽  
Author(s):  
Toshihiko Sasaki ◽  
Kei Koda ◽  
Yohei Fujimoto ◽  
Shoichi Ejiri ◽  
Tamaki Suzuki ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stainless Steel ◽  
Stress Analysis ◽  
Power Plants ◽  
Detection Method ◽  
Stress Measurement ◽  
Image Data ◽  
X Ray ◽  
Debye Ring ◽  
Residual Stress Analysis

This paper shows X-ray residual stress analysis of stainless steel using 2-dimensional detection method. The 2-dimensional detection method of X-ray stress measurement will determine stress by conducting a 2-dimensional detecting of a Debye ring and analyzing the image data. The basic of typical austenitic stainless steel (JIS SUS304) was studied in this study, considering the fact that, at certain power plants, maintenance takes place to prevent stress corrosion cracking by adding compressive residual stress to the structure..

Application of Synchrotron Radiation to Residual Stress Analysis by IP/cosα Method

2008 ◽  
Vol 571-572 ◽  
pp. 249-254 ◽  
Author(s):  
Toshihiko Sasaki ◽  
Yohei Miyazawa ◽  
Shunichi Takahashi ◽  
Ryohei Matsuyama ◽  
Katsunari Sasaki ◽  
...  
Keyword(s):  
Residual Stress ◽  
Synchrotron Radiation ◽  
Stress Analysis ◽  
Stress Measurement ◽  
High Energy ◽  
Ray Method ◽  
X Ray ◽  
High Energy Accelerator ◽  
Diffraction Angle ◽  
Residual Stress Analysis

The X-ray stress measurement with synchrotron radiation (SR) and an image plate (IP) was conducted using the facility of the Photon Factory (PF) of the High Energy Accelerator Research Organization (KEK). The influence of 2θ on stress measurement with the cosα method was investigated. The experiments were conducted under the conditions of 2θ=170 deg, 156.4 deg and 127 deg respectively. It was found that the hypothesis on the relation between the accuracy and the diffraction angle in the X-ray method is not valid in case of the cosα method.

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