The influence of oxygen concentration on the internal stress and dislocation arrangements in a titanium
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C o r r e c t i o n s to M e t . T r a n s . ,
diffusion c r e e p model for the SD effect w e r e a p p r e c i ated. l. J. P. Hirthand MorrisCohen:Met. Trans., 1970,vol. l, p. 3. 2. R. Chair:Met. Trans., 1972,vol. 3, p. 365. 3. G. C. Ranchand W.C. Leslie:Met. Trans., 1972,vol. 3, p. 373, 4. D. Kalishand H. J, Rack:Met. Trans., 1972,vol.3, p. 2289. 5. C. Bauwens-Crowet,J. C. Bauwens,and G. Homes:J. Mater. Scs 1972,vol. 7, p. 176. 6. M. D. Merz:J. Nucl. Mater., 1970,vol. 34, p. 108. 7. M. D. Merzand R. D. Nelson:Met. Trans., 1971,vol. 2, p. 1399. 8. B. Sprier:J. Nucl. Mater., 1964,vol. 12, p. 159. 9. S. E. Bronisz:J. Nucl. Mater., 1963,vol. 9, p. 101. 10. G. R. Edwards:Ph.D.Thesis,StanfordUniversity,1971. 11. D. Gdggsand W.B. Miller:Bull. Geol. Soc. Amer., 1951,vol.62, p. 853. 12. M. D. Merz:BattelleMemorialInstitute,PacificNorthwestLaboratories, unpublishedresearch. 13. J. Weertman:Trans. ASM, 1968,vol. 61, p. 681. 14. P. G. McCormackand A. L. Ruoffin: Mechanical Behavior of Materials Under Pressure, H. Li D. Pugh,ed., p. 355, ElsevierPub. Co., Ltd., N. Y., 1970. 15. O.D. Sherby,J. L Robbins,and A. Goldberg:J. Appl. Phys., 1970,vol.41, p. 3961.
1972, vol. 3
The Influence of Oxygen Concentration
on the Internal Stress
and Dislocation
Arrangements
in a Titanium,
by J . C.
W i l l i a m s , A. W. S o m m e r , and P . P . Tung, pp. 2979-84. P a g e s 2981-84 Beginning at the bottom of page 2981, the published text was not in the p r o p e r s e q u e n c e . The following should be s u b s t i t u t e d . P l e a s e r e f e r to above r e f e r e n c e for a d d i t i o n a l text and f i g u r e s . B) Thin Foil E l e c t r o n M i c r o s c o p y Thin foils w e r e p r e p a r e d f r o m the gage s e c t i o n s of t e n s i l e s p e c i m e n s of a l l five types of m a t e r i a l which had b e e n d e f o r m e d at t e m p e r a t u r e s b e t w e e n 77 and 540 K. T w i n n i n g was o b s e r v e d in types I through IV m a t e r i a l s d e f o r m e d at a l l t e m p e r a t u r e s studied. The twin t h i c k n e s s d e c r e a s e d with i n c r e a s i n g t e m p e r a t u r e and oxygen c o n t e n t as did the twinning f r e q u e n c y . S e lected a r e a e l e c t r o n d i f f r a c t i o n and t r a c e a n a l y s i s showed that n e a r l y all the twins w e r e of the {1012} type. In all c a s e s w h e r e twins w e r e o b s e r v e d , p r o f u s e slip had also o c c u r r e d in both the m a t r i x and the twin. B u r g e r s v e c t o r d e t e r m i n a t i o n e x p e r i m e n t s showed that the d e f o r m a t i o n had a l m o s t e x c l u s i v e l y o c c u r r e d by a v e c t o r s l i p . T h e r e w e r e a l s o a p p r e c i a b l e n u m b e r s of c + a type d i s l o c a t i o n s p r e s e n t , however these d i s l o c a t i o n s w e r e confined to r e g i o n s n e a r the twin: m a t r i x interface.s. All m a t e r i a l s showed a t r e n d t o w a r d m o r e u n i f o r m d i s t r i b u t i o n s of d i s l o c a t i o n s with i n c r e a
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