Characterization of precipitate phases in a Mg–Dy–Gd–Nd alloy
作者： Dehui Li , Jie Dong , Xiaoqin Zeng , Chen Lu , Wenjiang Ding
DOI: 10.1016/J.JALLCOM.2006.08.059
关键词:
摘要: Abstract Precipitated phases in a Mg–Dy–Gd–Nd alloy during ageing were studied by using transmission electron microscopy. Observations performed along some orientations parallel to 〈0 0 0 1〉α and/or 〈 1 2 ¯ 0 〉 α zone axes of the matrix. Results show that has rapid response, which can be attributed formation β″ precipitates, occurring three { } planes with DO19 structure; decreasing hardness may result from forming β1, forms plates, and orientation relationship between β1 matrix described β / , 〈1 1 0〉β1//〈0 0 0 1〉α; further leads also as plates phase is identical observed phase.
elsevier.com
sci-hub.se 参考文章(19)
Introduction to analytical electron microscopy Plenum Press. ,(1979) , 10.1007/978-1-4757-5581-7
J. B. Clark, A. A. Nayeb-Hashemi, Phase diagrams of binary magnesium alloys ASM International. ,(1988)
R.B Nicholson, J Nutting, The metallography of precipitation in an Al-16% Ag alloy Acta Metallurgica. ,vol. 9, pp. 332- 343 ,(1961) , 10.1016/0001-6160(61)90227-9
J.F. Nie, B.C. Muddle, Characterisation of strengthening precipitate phases in a Mg–Y–Nd alloy Acta Materialia. ,vol. 48, pp. 1691- 1703 ,(2000) , 10.1016/S1359-6454(00)00013-6
C. Antion, P. Donnadieu, F. Perrard, A. Deschamps, C. Tassin, A. Pisch, Hardening precipitation in a Mg–4Y–3RE alloy Acta Materialia. ,vol. 51, pp. 5335- 5348 ,(2003) , 10.1016/S1359-6454(03)00391-4
P.J. Apps, H. Karimzadeh, J.F. King, G.W. Lorimer, Precipitation reactions in Magnesium-rare earth alloys containing Yttrium, Gadolinium or Dysprosium Scripta Materialia. ,vol. 48, pp. 1023- 1028 ,(2003) , 10.1016/S1359-6462(02)00596-1
J.M. Howe, H.I. Aaronson, T. Furuhara, Interphase boundary structures of intragranular proeutectoid α plates in a hypoeutectoid TiCr alloy Acta Metallurgica Et Materialia. ,vol. 39, pp. 2873- 2886 ,(1991) , 10.1016/0956-7151(91)90104-9
J.P Hirth, G Spanos, M.G Hall, H.I Aaronson, Mechanisms for the development of tent-shaped and invariant-plane-strain-type surface reliefs for plates formed during diffusional phase transformations Acta Materialia. ,vol. 46, pp. 857- 868 ,(1998) , 10.1016/S1359-6454(97)00302-9
U. Dahmen, Orientation relationships in precipitation systems Acta Metallurgica. ,vol. 30, pp. 63- 73 ,(1982) , 10.1016/0001-6160(82)90045-1
B. C. Muddle, J. F. Nie, G. R. Hugo, Application of the theory of martensite crystallography to displacive phase transformations in substitutional nonferrous alloys Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 25, pp. 1841- 1856 ,(1994) , 10.1007/BF02649032