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Published February 1961 | public
Journal Article

Tilt boundary motion in zinc produced by static and dynamic shear stress

Abstract

Crystals grown from 99.999+ per cent zinc and zone refined zinc were subjected to static and dynamic shear loading. Tilt boundaries in crystals of zone refined zinc move at static stresses of approximately 3 lb/in^2, while stresses of approximately 30 lb/in^2 will not move boundaries in 99.999+ per cent purity zinc. The stress required to initiate boundary motion within a time interval of 17 × 10^(−6) sec in a dynamic test is about 100 times greater than the stress required in a static test. The boundary velocity increases linearly with increasing dynamic stress.

Additional Information

© 1961 Published by Elsevier Ltd. Received February 8, 1960. This research was supported by the U.S. Air Force through the Air Force Office of Scientific Research of the Air Research and Development Command, under contract No. AF 18(600)-490. This research was supported by the Solid State Sciences Division, Air Force Office of Scientific Research. The author wishes to extend his thanks to this agency for support of the work reported herein. The author is indebted to Professors D . S. Clark and D. S. Wood, of the California Institute of Technology, for advice and discussions during the course of the work, and to Mr. Kenneth Adams who assisted in the preparation of specimens and in the performance of the tests.

Additional details

Created:
August 19, 2023
Modified:
October 19, 2023