Dislocation Motion in Copper Single Crystals

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概要

• 論文の詳細を見る

• The characteristic motion of dislocations in copper single crystals of low dislocation density has been studied by etch pitting, especially near yield stress. Dislocations are presumed to be locked at each position in as-annealed crystals. The motion of dislocations due to the application of stress is composed of three processes: (1) unlocking from the as-annealed position, (2) moving at a high speed, e.g. 400cm/sec at a stress of 22g/mm^2, and (3) stopping at a certain final position depending on the stress level below yield stress. It is considered tentatively that the locking is due to discrete pinning by impurity atoms, and the main obstacles to the dislocation motion are thought to be other locked dislocations. From quantitative studies of each process a possible mechanism of yielding of copper crystals is suggested.

• 社団法人日本物理学会の論文
• 1967-02-05

著者

• Marukawa Kenzaburo

  The Institute For Solid State Physics The University Of Tokyo

• Marukawa Kenzabro

  The Institute For Solid State Physics The University Of Tokyo

関連論文

• Dark and Light Pits on (111) Surface of Copper
• Dislocation Motion in Copper Single Crystals

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