The effect of ternary trace additions on the nucleation and growth of γ′ precipitates in an Al-4.2 At. Pct Ag alloy
作者： N. Prabhu , J. M. Howe
DOI: 10.1007/BF02660860
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摘要: The role of trace elements on the nucleation and growth kinetics γ′ precipitates in an aged Al-4.2 at. pct Ag alloy was determined. Comparing characteristic properties different precipitate dimensions density after aging showed that a combination high solute/vacancy binding energy diffusivity required to significantly affect length, thickness, precipitates. which had most pronounced effect were In Sn, Sn appears be largely electronic origin. mechanism by these micro-structure is reduce number quenched-in dislocation loops for heterogeneous decreased sites leads prolonged matrix super-saturation, causes increase ledge
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B Noble, Theta-prime precipitation in aluminium-copper-cadmium alloys Acta Metallurgica. ,vol. 16, pp. 393- 401 ,(1968) , 10.1016/0001-6160(68)90026-6
A.K. Mukhopadhyay, G.J. Shiflet, E.A. Starke, Role of vacancies on the precipitation processes in Zr modified aluminum based alloys Scripta Metallurgica Et Materialia. ,vol. 24, pp. 307- 312 ,(1990) , 10.1016/0956-716X(90)90261-E
K. C. Russell, G. W. Lorimer, Cessation of the dislocation splitting mechanism for γ’ Al-Ag formation above a critical temperature Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 8, pp. 1644- 1644 ,(1977) , 10.1007/BF02644873
R.D. Doherty, K.E. Rajab, Kinetics of growth and coarsening of faceted hexagonal precipitates in an f.c.c. matrix—II. Analysis Acta Metallurgica. ,vol. 37, pp. 2723- 2731 ,(1989) , 10.1016/0001-6160(89)90306-4
Peter Bernhard Hirsch, Electron Microscopy of Thin Crystals ,(1977)
J.M. Howe, H.I. Aaronson, R. Gronsky, Atomic mechanisms of precipitate plate growth in the AlAg system—I. Conventional transmission electron microscopy Acta Metallurgica. ,vol. 33, pp. 639- 648 ,(1985) , 10.1016/0001-6160(85)90027-6
R. Sankaran, C. Laird, Effect of trace additions Cd, In and Sn on the interfacial structure and kinetics of growth of θ′ plates in AlCu alloy Materials Science and Engineering. ,vol. 14, pp. 271- 279 ,(1974) , 10.1016/0025-5416(74)90108-6
K. H. Westmacott, R. S. Barnes, D. Hull, R. E. Smallman, Vacancy trapping in quenched aluminium alloys Philosophical Magazine. ,vol. 6, pp. 929- 935 ,(1961) , 10.1080/14786436108243348
R.D. Doherty, M. Ferrante, Y.H. Chen, On the growth kinetics of plate-shaped precipitates Scripta Metallurgica. ,vol. 12, pp. 885- 891 ,(1978) , 10.1016/0036-9748(78)90176-X
J.D. Boyd, R.B. Nicholson, A calorimetric determination of precipitate interfacial energies in two AlCu alloys Acta Metallurgica. ,vol. 19, pp. 1101- 1109 ,(1971) , 10.1016/0001-6160(71)90042-3