Attention is directed to the extension of a dislocation by the acting stress in metals having a low stacking-fault energy. It is shown that stress-induced stacking faults impede the movement of dislocations on intersecting slip planes, causing overshoot in copper-aluminium single crystals when tested in tension.
Get full access to this article
View all access options for this article.
References
1.
ThorntonP. R., MitchellT. E., and HirschP. B., Phil. Mag., 1962, 7, 1349.
2.
ClarebroughL. M. and HargreavesM. E., Progress Metal Physics, 1959, 8, 1.
3.
FriedelJ., “Dislocations”, p. 176. 1964: Oxford, &c. (Per-gamon Press).
4.
MitchellT. E. and ThorntonP. R., Phil. Mag., 1963, 8, 1127.
5.
HowieA. and SwannP. R., ibid., 1961, 6, 1215.
6.
DornJ. E., “Energetics in Metallurgical Phenomena” (edited byMuellerW. M.), Vol. 1, p. 287. 1965: New York (Gordon and Breach).
7.
SwannP. R., “Electron Microscopy and Strength of Crystals” (edited byThomasG. and WashburnJ.), p. 131. 1963: New York and London (Interscience Publishers).
8.
FriedelJ., Ref. (3), p. 167.
9.
BarrettC. S., “Imperfections in Nearly Perfect Crystals”, p. 101. 1950: New York (John Wiley); London (Chapman and Hall).
10.
FriedelJ., Ref. (3), p. 166.
11.
BrownL. M., Phil. Mag., 1964, 10, 441.
12.
HowieA., Ph.D. Thesis, Cambridge Univ., 1960.
13.
LindroosV. and MiekkojaH. M., J. Inst. Metals, 1964 –65, 93, 513.
14.
RätyR., LindroosV., SaarinenA., ForsténJ., and Miekk-ojaH. M., J. Sci. Instruments, 1966, 43, 367.
15.
SeegerA., “Handbuch der Physik”, Vol. VII, Part 2, (edited byFlägge)S., p. 63. 1958: Berlin, &c. (Springer).
