✍ Scribed by D.M.R. Taplin; R.C. Gifkins
No coin nor oath required. For personal study only.
RECRYSTALLIZE0 a-Ti (A-70 X PRESENT RESULTS 0 ORAVA et 01 (6) IO-2 4 6 8 T r/z f"Klt'2 FIG. 2. Relation between the thermal component of the flow stress, r*, and the square root of the absolute temperature. from an estimate of the error in the gage area measurement (&3x). Also plotted are some of the directly comparable data of Orava et aZ.@) The slope and intercept of the linear relation ob~in~ are -3.2 + 0.1 kg/mm2/0K1/Z and 72 f 2 kg[mm2, in excellent agreement with the values deduced by Conrad(l').
Although no unequivocal conclusion is possible from so few data, the present results support the view that the rate controlling dislocation mechanism in unalloyed titanium at low ~m~ratures is the thermally activated overcoming of interstitial atoms, as previously suggestedclQ).
The authors gratefully acknowledge the financial support of the Air Force under Contract No. AF33(615)-386~.
📜 SIMILAR VOLUMES
Creep energy dissipation (CED) due to crack tip creep zone is determined under steady state conditions for centre cracked thin specimen of 1.25CrOSMo steel, with different widths and crack length to width ratios. The creep energy rate increases when the increment in crack length Au increases and the