| Autor: |
E. B. S. Pardue, M. R. James |
| Rok vydání: |
1989 |
| Předmět: |
|
| Zdroj: |
International Conference on Residual Stresses ISBN: 9789401070072 |
| DOI: |
10.1007/978-94-009-1143-7_17 |
| Popis: |
The error in measurement of 2θ when a linear position sensitive proportional counter (PSPC) is not positioned on the focussing circle is investigated. The errors depend both on 2θ and on the ψ tilt used for X-ray residual stress measurement. A simple calculation predicts that the errors are larger for smaller Bragg angles and for negative ψ tilts. A comparison of data from common engineering materials with diffraction peaks between 127° and 156° validated the predicted trends. These results show that errors in peak location for negative ψ tilts, commonly used in the analysis of triaxial stress states, can be very large for 2θ less that 145°. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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