HRTEM observation of the fine precipitate at the early stage of aging in Al-Mg-Si-Cu alloy.

• Autorzy: Matsuda K. , Ikeno S. , Sato T.
• Konferencja: 5th Polish-Japanese Symposium on Advanced Methods of Materials Characterization, Niedzica, 28.08-2.09.2004
• Języki publikacji: EN

Abstrakty

EN

The effect of copper on precipitation sequence of Al-Mg-SI alloys has been studied and discussed by many researchers. However, there is no suitable explanation yet. We studied the precipitation sequence of this alloy by using the high-resolution transmission electron microscopic (HRTEM) technique and several metastable phases and their crystal structures as well as the lattice parameter determined in our previous research. Recently, we have found that the segregation of copper occurs at the interface between the Q'-phase in the Al-Mg-Si-Cu alloy by energy-filtering TEM (EFTEM). In this work, we found a new precipitate, which existed in samples of Al-Mg-Si-Cu alloy aged at low temperature and had an elongated shape.

Słowa kluczowe

EN

HRTEM; alloy; ageing

PL

HRTEM; stop; starzenie

• Wydawca: Komitet Nauki o Materiałach PAN
• Czasopismo: Archives of Materials Science
• Rocznik: 2005
• Tom: Vol. 26, nr 1-2
• Strony: 59--63
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Matsuda K.

• Faculty of Engineering, Toyama University, 3190, Gofuku, Toyama, 930-8555, Japan

autor

Ikeno S.

• Faculty of Engineering, Toyama University, 3190, Gofuku, Toyama, 930-8555, Japan

autor

Sato T.

• Graduate School of Materils Science, Tokyo Institute of Technology, Japan

Bibliografia

• [1] W.F. Miao, D.E. Laugh1in, Metall. Mater. Trans. A, 31 A, 361 (2000).
• [2] С Сау1оn, P.A. Вuffat, Act Mater, 48, 2639 (2000).
• [3] C. Wo1verton, Acta Mater., 49, 3129 (2001).
• [4] K. Matsuda. D. Teguri. Т. Sato, Y. Ue tani. S. Ikenо, Scripta Mater., 43, 833 (2002)
• [5} K. Matsuda, S. Taniguchi, K. Kido, Y.Uetani, S.Ikeno, Mater Trans., 43, 2789 (2002)
• [6] К Matsuda. H.Gamada, Y.Uetani, S. Rengakuji, F. Shinagawa, S.Ikeno, J. Japan. Inst. Light Metals, 48, 471 (1998).
• [7] К Matsuda. T. Naoi, K. Fujii, Y.Uetani, T. Sato, A. Kamio, S.Ikeno, Mater. Sci. Eng. A, 262, 232 (1999)