Internal Stress at Lüders Band Front of KCl-KBr Solid Solution Single Crystals
- 1 October 1972
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 11 (10) , 1421-1428
- https://doi.org/10.1143/jjap.11.1421
Abstract
KCl-KBr crystals show Lüders deformation with remarkable serrations. The stress components associated with the Lüders band front are measured by a photoelastic method and compared with those calculated on the basis of a proposed dislocation model. A polygonized edge dislocation wall is formed at the band front and dislocations with both positive and negative signs remain at random behind the wall. This wall induces a long range stress field when it rotates slightly from the symmetrical position. The stress field is evaluated by superposing the stresses of individual dislocations in the present model and the result is shown to agree with the measurements. The shear stress on a glide plane is very small while the large normal stress is caused on both sides of the polygon wall. The sign of normal stress changes according as the wall rotates clockwise or counterclockwise.Keywords
This publication has 13 references indexed in Scilit:
- Motion of a Polygon Wall of Edge Dislocations in KCl-KBr Solid Solution Single CrystalJapanese Journal of Applied Physics, 1971
- Der beginn der plastischen verformung von hoch phosphordotiertem siliziumActa Metallurgica, 1969
- Equilibrium State of Slip Bands in Plastically Bent NaCl CrystalsPhysica Status Solidi (b), 1969
- Temperature Dependence of the Elastic Constants of the Alkali Halides. II. The Solid Solution KCl–KBrJournal of Applied Physics, 1967
- Étude photoélastique des dislocations dans LiF coloréPhysica Status Solidi (b), 1965
- Plastic deformation in mgo single crystalsPhilosophical Magazine, 1964
- Internal strains in kink bands in silver chloride crystalsPhilosophical Magazine, 1962
- Plastic deformation of silver chloride. II. Photoelastic study of the internal stresses in glide packetsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1949
- Plastic deformation of silver chloride I. Internal stresses and the glide mechanismProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1949
- ber eine optische Methode der Untersuchung von plastischen Deformationen in SteinsalzThe European Physical Journal A, 1927