Deformation mechanisms in commercial Ti (0.5 at. pct oineq) at intermediate and high temperatures (0.3 - 0.6 tinm)
作者： M. Doner , H. Conrad
DOI: 10.1007/BF02644581
关键词:
摘要: The plastic flow of the commercial titanium material Ti-50A (0.5 at. pct Oeq) 22 μm grain size was investigated over temperature range 600 to 1150 structure) and strain rates 3 x 10-5 10-2 per s employing both constant rate cycling tests. Dynamic aging occurred in 850 (0.31 0.44Tm) with an activation energy 50 kcal mole derived from start serrations stress-strain curves, maxima hardening minima ductility. This value is accord that for diffusion oxygen titanium. At temperatures above (0.46 0.59Tm) data were very well represented by Weertman’s glide climb high creep mechanism, giving eskT/Dμb= 1.1 106 (σ/μ)4.55 withD = 1.0 exp (- 57,800/RT). 57.8 available self-diffusion
springer.com
sci-hub.se 参考文章(33)
Y Bergström, W Roberts, The application of a dislocation model to dynamical strain ageing in α-iron containing interstitial atoms Acta Metallurgica. ,vol. 19, pp. 815- 823 ,(1971) , 10.1016/0001-6160(71)90138-6
A.M Garde, A.T Santhanam, R.E Reed-Hill, The significance of dynamic strain aging in titanium Acta Metallurgica. ,vol. 20, pp. 215- 220 ,(1972) , 10.1016/0001-6160(72)90183-6
N.G. Turner, W.T. Roberts, Dynamic strain ageing in titanium Journal of The Less Common Metals. ,vol. 16, pp. 37- 44 ,(1968) , 10.1016/0022-5088(68)90154-9
R. F. Peart, J. Askill, The Mechanism of Diffusion in B.C.C. Transition Metals physica status solidi (b). ,vol. 23, pp. 263- 275 ,(1967) , 10.1002/PSSB.19670230126
P. Kofstad, High-temperature oxidation of titanium Journal of The Less Common Metals. ,vol. 12, pp. 449- 464 ,(1967) , 10.1016/0022-5088(67)90017-3
K.Linga Murty, F.A Mohamed, J.E Dorn✠, Viscous glide, dislocation climb and newtonian viscous deformation mechanisms of high temperature creep in Al-3Mg Acta Metallurgica. ,vol. 20, pp. 1009- 1018 ,(1972) , 10.1016/0001-6160(72)90135-6
A.H. Cottrell, LXXXVI. A note on the Portevin-Le Chatelier effect Philosophical Magazine Series 1. ,vol. 44, pp. 829- 832 ,(1953) , 10.1080/14786440808520347
C.M Libanati, Sra.F Dyment, Autodifusion de titanio alfa Acta Metallurgica. ,vol. 11, pp. 1263- 1268 ,(1963) , 10.1016/0001-6160(63)90115-9
B.J Brindley, J.T Barnby, Dynamic strain ageing in mild steel Acta Metallurgica. ,vol. 14, pp. 1765- 1780 ,(1966) , 10.1016/0001-6160(66)90028-9
N.E.Walsöe De Reca, y C.M. Libanati, Autodifusion de titanio beta y hafnio beta Acta Metallurgica. ,vol. 16, pp. 1297- 1305 ,(1968) , 10.1016/0001-6160(68)90010-2