Luders Deformation and Strain Aging of [001] Oriented Fe-30%Cr Alloy Single Crystals

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概要

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• Peculiar deformation accompanied by Luders band having 46% Luders strain was observed in the [001] oriented Fe-30%Cr alloy single crystal. Specimen was again deformed after aging at 473K for 1.8ks at the 23.5% strain. The first Luders band can not move due to locking by aging and second Luders band started from the opposite side of the chuck. The specimen having [001] tensile axis is thought to begin to slip ideally by four slip directions. In the present case, this specimen deformed by slip of [111] and [111] directions. Thus, the slip system of Luders band could be determined. From the surface observation of the side surface of the specimen, the propagation speed, width and the strain-rate in the Luders band were determined. The mobile dislocation density in the Luders band was also estimated to be about 2×10^8cm/cm^3. The effective and internal stresses were determined during the straining in order to analyze the mechanism of Luders deformation.

• 社団法人日本材料学会の論文
• 2003-09-15

著者

• Miura Sei

  Dept. Of Mech. Eng. Faculty Of Eng. Sojo Univ.

• KOUSHIMA Motohiko

  Dept. of Mech. Eng., Faculty of Eng., SOJO Univ.

• Koushima M

  Dept. Of Mech. Eng. Faculty Of Eng. Sojo Univ.

• Koushima Motohiko

  Dept. Of Mech. Eng. Faculty Of Eng. Sojo Univ.

関連論文

• Hall-Petch Relation and Twin Boundaries in Pure Copper and Cu-Al Alloys : English version of the paper published in “Journal of the Society of MaterialsScience, Japan, 57 (9) : 921-928 (2008)”
• Luders Deformation and Strain Aging of [001] Oriented Fe-30%Cr Alloy Single Crystals
• Deformation Mechanism of [001] Oriented Fe-30%Cr Alloy Single Crystals

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