scholarly journals X-ray Stress Measurement of Ferritic Steel Using Fourier Analysis of Debye-Scherrer Ring

2015 ◽  
Vol 64 (7) ◽  
pp. 567-572 ◽  
Author(s):  
Yohei FUJIMOTO ◽  
Toshiyuki MIYAZAKI ◽  
Toshihiko SASAKI
Keyword(s):  
Fourier Analysis ◽  
Ferritic Steel ◽  
Stress Measurement ◽  
X Ray

Residual stress measurement in ferritic steel tube welds using X-ray diffraction

1998 ◽  
Vol 3 (4) ◽  
pp. 204-207 ◽  
Author(s):  
S. Rai ◽  
T. Jayakumar ◽  
C. Babu Rao ◽  
D. K. Bhattacharya ◽  
B. Raj
Keyword(s):  
Residual Stress ◽  
Ferritic Steel ◽  
Stress Measurement ◽  
Steel Tube ◽  
Residual Stress Measurement ◽  
X Ray Diffraction ◽  
X Ray

Microanalysis of precipitates in a ferritic steel

1978 ◽  
Vol 36 (1) ◽  
pp. 618-619
Author(s):  
J.M. Titchmarsh
Keyword(s):  
Ferritic Steel ◽  
Particle Identification ◽  
Energy Dispersive ◽  
Objective Lens ◽  
Ferritic Steels ◽  
Replica Technique ◽  
X Ray ◽  
Large Numbers ◽  
Scanning Transmission ◽  
Made In

The advances in recent years in the microanalytical capabilities of conventional TEM's fitted with probe forming lenses allow much more detailed investigations to be made of the microstructures of complex alloys, such as ferritic steels, than have been possible previously. In particular, the identification of individual precipitate particles with dimensions of a few tens of nanometers in alloys containing high densities of several chemically and crystallographically different precipitate types is feasible. The aim of the investigation described in this paper was to establish a method which allowed individual particle identification to be made in a few seconds so that large numbers of particles could be examined in a few hours.A Philips EM400 microscope, fitted with the scanning transmission (STEM) objective lens pole-pieces and an EDAX energy dispersive X-ray analyser, was used at 120 kV with a thermal W hairpin filament. The precipitates examined were extracted using a standard C replica technique from specimens of a 2¼Cr-lMo ferritic steel in a quenched and tempered condition.

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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