Heterogeneous microstructure of short-range ordered αCuZn
作者： D Trattner , W Pfeiler
DOI: 10.1088/0305-4608/13/4/009
关键词: Crystallography 、 Heterogeneous microstructure 、 Microstructure 、 Materials science 、 Kinetics 、 Activation energy 、 Thermodynamic equilibrium 、 Range (particle radiation) 、 Electrical resistivity and conductivity 、 Relaxation (NMR) 、 Analytical chemistry
摘要: Short-range ordered (SRO) kinetics of Cu-20 at.% Zn, Cu-25 Zn and Cu-30 have been investigated by measurement electrical resistivity during isochronal isothermal annealing. The samples show a growing atomic mobility with increasing content. After small sudden temperature change the new equilibrium state SRO is adjusted two distinct processes, giving evidence for heterogeneity microstructure. relaxation times processes differ factor six, but reveal same activation energy: 1.5+or-0.1 eV 1.25+or-0.1 Zn.
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sci-hub.se 参考文章(16)
E Balanzat, J Hillairet, A quench and irradiation study of the vacancy parameters in alpha -Cu-30 at% Zn Journal of Physics F: Metal Physics. ,vol. 11, pp. 1977- 1990 ,(1981) , 10.1088/0305-4608/11/10/007
F. Adunka, M. Zehetbauer, L. Trieb, Heterogeneous short-range order as an origin of the K-state in α-FeAl Physica Status Solidi (a). ,vol. 62, pp. 213- 222 ,(1980) , 10.1002/PSSA.2210620124
Henry M. Otte, Lattice Parameter Studies of Annealed, of Aged, and of Cold‐Worked Alpha Brass Journal of Applied Physics. ,vol. 33, pp. 1436- 1441 ,(1962) , 10.1063/1.1728750
G. Veith, L. Trieb, H.P. Aubauer, An experimental method for demonstrating the heterogeneity of short range ordered phases (α-CuAl) Scripta Metallurgica. ,vol. 9, pp. 737- 742 ,(1975) , 10.1016/0036-9748(75)90231-8
R. Poerschke, S. Mantl, Positron annihilation studies on an electron irradiated Cu-30 at % Zn alloy Radiation Effects and Defects in Solids. ,vol. 41, pp. 61- 63 ,(1979) , 10.1080/00337577908237940
D.T. Keating, Diffraction studies of possible ordering in α-brass☆ Acta Metallurgica. ,vol. 2, pp. 885- 887 ,(1954) , 10.1016/0001-6160(54)90044-9
R. Poerschke, H. Wollenberger, Defect production and interdiffusion in electron irradiated α-brass Journal of Nuclear Materials. ,vol. 74, pp. 48- 61 ,(1978) , 10.1016/0022-3115(78)90532-9
R. Feder, A. S. Nowick, D. B. Rosenblatt, Study of Order in Annealed and Irradiated Alpha Brass by Lattice Parameter Measurements Journal of Applied Physics. ,vol. 29, pp. 984- 988 ,(1958) , 10.1063/1.1723344
L. Trieb, G. Veith, Kinetic study of short range order in α-CuAl alloys Acta Metallurgica. ,vol. 26, pp. 185- 196 ,(1978) , 10.1016/0001-6160(78)90215-8
M Halbwachs, D Beretz, J Hillairet, The migration properties of vacancies and their influence on the enhanced atomic mobility in α-brass exposed to electron irradiation Acta Metallurgica. ,vol. 27, pp. 463- 469 ,(1979) , 10.1016/0001-6160(79)90038-5