日本金属学会誌

J. Japan Inst. Metals, Vol. 34, No. 11 (1970),
pp. 1122-1127

The Analysis of Deformation around the Indentation on the Cube Face of Copper by Dislocation Etching

Shozo Yoshioka1, Mitsuo Mera1 and Eiichi Sukedai2

1College of Engineering, University of Osaka Prefecture, Sakai
2Graduate School, University of Osaka Prefecture, Sakai

Abstract:

Indentation on Cu(001) surface was formed with a conical indentor and studied by observations of slip trace distribution and of dislocation distribution on the top-surface, (001) sections at various depths and (11 1) cross-sections at various distances from the indentation center by the etch pit method. The results obtained are as follows:
(1) Dislocation clustering zones were observed and their three dimensional configuration was revealed.
(2) The operated slip planes observed in the specimen were of two kinds; one the convergent plane in the central-axis side below fork-like dislocation clustering zones and the other divergent plane above them. And the fork-like dislocation clustering zones seem to be formed by the interaction of dislocations on these two kinds of slip planes.
(3) The identification of the operated slip planes obtained here does not agree with L.D. Dyer's result on ball. This may be due to the shape of the conical indentor used in this experiment (spherical apex+conical side).
Also, a new etchant for the Cu(001) surface was found, and a one-to-one correspondence between dislocations and etch pits, which were revealed by the new etchant, was approximately established. This etchant was found capable of producing satisfactory results only when the crystal surfaces were less than about 3 degrees off the (001) plane.


(Received 1970/6/15)

Keywords:


PDF(Free)PDF (Free)     Table of ContentsTable of Contents

Please do not copy without permission.