A Methodology Development for the Study of Near Surface Stress Gradients

• Type: Article in International Scientific Journal
• Date: 2000

Authors

Maria José Marques (Author) FEUP; A. M. Dias (Author) Other; P. Gergaud (Author) Other; J. L. Lebrun (Author) Other

Journal

Title: Materials Science and Engineering A

Vol. 287 No. 1

Pages: 78-86

ISSN: 0921-5093

Publisher: Elsevier Science

Indexing

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Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Abstract (EN): A modification of the geometry used in the sin2c technique of X-ray diffraction is described. A modified equation for residual stress determination, including geometric adapted Fij, is presented. This method allows near surface stress gradients determination and is called pseudo-grazing incidence method. The limits of the new technique were first tested on different powder materials with X-ray radiation produced by conventional tubes and by a synchrotron radiation source. The technique was finally applied for the determination of a residual stress profile in a polished molybdenum surface before and after the deposition of a PVD chromium film. © 2000 Elsevier Science S.A. All rights reserved.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9