Improvement of X-ray stress measurement from a Debye–Scherrer ring by oscillation of the X-ray incident angle. Issue 3 (12th August 2015)

• Record Type: Journal Article
• Authors: Miyazaki, Toshiyuki; Maruyama, Yoichi; Fujimoto, Yohei; Sasaki, Toshihiko
• Is Part Of: Powder diffraction. Volume 30:Issue 3(2015)
• Page Start: 250
• Page End: 255
• Publication Date: 2015-08-12
• Subjects: X-ray stress measurement, -- Debye–Scherrer ring, -- Fourier series, -- X-ray incident angle oscillation; Powder metallurgy -- Periodicals; Materials -- Analysis -- Periodicals; 620.1127
• DOI: 10.1017/S0885715615000433
• Languages: English
• ISSNs: 0885-7156

Abstract

Abstract : A technique to improve the stress measurement from a Debye–Scherrer ring (D–S ring) is reported. In a previous work, the authors reported a technique to calculate stress from the Fourier series of the normal strain of a D–S ring. That technique, similar to the cos α method that came before it, is inaccurate when the grain size of the specimen is relatively large. To cope with this problem, the authors propose using the oscillation of the X-ray incident angle. The present study demonstrates this technique to improve the stress measurement.