scholarly journals Development and Validation of an X-Ray Stress Measurement Device Using an Image Plate Suitable for the cosα Method

2015 ◽  
Vol 64 (7) ◽  
pp. 560-566 ◽  
Author(s):  
Yoichi MARUYAMA ◽  
Toshiyuki MIYAZAKI ◽  
Toshihiko SASAKI
Keyword(s):  
Stress Measurement ◽  
Measurement Device ◽  
X Ray ◽  
Image Plate ◽  
Development And Validation

X-Ray Stress Measurement Using an Image Plate

2003 ◽  
Vol 2003.9 (0) ◽  
pp. 169-170
Author(s):  
Toshihiko SASAKI ◽  
Katsuhiro Seki ◽  
Yukio Hirose
Keyword(s):  
Stress Measurement ◽  
X Ray ◽  
Image Plate

X-Ray Stress Measurement of Austenitic Stainless Steel with cosα Method and Two-Dimensional X-Ray Detector

2016 ◽  
Vol 879 ◽  
pp. 1679-1684 ◽  
Author(s):  
Toshihiko Sasaki ◽  
Hikaru Sato
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Stress Measurement ◽  
Diffraction Line ◽  
Two Dimensional ◽  
Measuring Time ◽  
X Ray ◽  
Image Plate ◽  
Fundamental Experiment

This paper describes a fundamental experiment on X-ray stress measurement of austenitic stainless steel (JIS SUS316L) with a new equipment which was developed in this study. An image plate (IP) as a two-dimensional X-ray detector and the cosα method as a principle of the measurement of stress were used in it. An experiment was conducted with CrKβ characteristic X-ray and γFe-311 diffraction line, and the results were compared to those that were obtained with the conventional sin2ψ method under the similar X-ray conditions. It was found that the accuracy of stresses obtained with the equipment developed are almost as same as those of the sin2ψ method. However, the measuring time can be shorten by several times by using it.

scholarly journals Statistical analysis of the reproducibility of residual stress measurements in cold extruded parts

2021 ◽  
Author(s):  
Fabian Jaeger ◽  
Alessandro Franceschi ◽  
Holger Hoche ◽  
Peter Groche ◽  
Matthias Oechsner
Keyword(s):  
Residual Stress ◽  
Statistical Analysis ◽  
Stress Measurement ◽  
Industrial Applications ◽  
Cold Extrusion ◽  
X Ray Diffraction ◽  
Forming Process ◽  
X Ray ◽  
Stress States ◽  
Key Aspects

AbstractCold extruded components are characterized by residual stresses, which originate from the experienced manufacturing process. For industrial applications, reproducibility and homogeneity of the final components are key aspects for an optimized quality control. Although striving to obtain identical deformation and surface conditions, fluctuation in the manufacturing parameters and contact shear conditions during the forming process may lead to variations of the spatial residual stress distribution in the final product. This could lead to a dependency of the residual stress measurement results on the relative axial and circumferential position on the sample. An attempt to examine this problem is made by the employment of design of experiments (DoE) methods. A statistical analysis of the residual stress results generated through X-Ray diffraction is performed. Additionally, the ability of cold extrusion processes to generate uniform stress states is analyzed on specimens of austenitic stainless steel 1.4404 and possible correlations with the pre-deformed condition are statistically examined. Moreover, the influence of the coating, consisting of oxalate and a MoS2 based lubricant, on the X-Ray diffraction measurements of the surface is investigated.

scholarly journals The X Ray Stress Measurement of Super-Duraimin under Tensile and Compressive Stress.

1944 ◽  
Vol 10 (38-1) ◽  
pp. 17-22
Author(s):  
Toshio NISHIHARA ◽  
Kohei KOZIMA ◽  
Shuzi TAIRA ◽  
Yutaro KOSAKA ◽  
Takeo TOMIYASU
Keyword(s):  
Compressive Stress ◽  
Stress Measurement ◽  
X Ray
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