TEM Observation of Cu and Ag Addition Al-Mg-Si Alloys

Abstract:

Article Preview

It has been known that Cu-and Ag-addition Al-1.0mass%Mg2Si alloys (Al-Mg-Si-Cu alloy and Al-Mg-Si-Ag alloy) have higher hardness and elongation than those of Al-1.0mass%Mg2Si alloy. In this study, the aging behaviour of Al-Mg-Si-Cu alloy, Al-Mg-Si-Ag alloy and (Cu+Ag)-addition Al-1.0 mass% Mg2Si alloy (Al –Mg –Si-Cu-Ag alloy) has been investigated by hardness test and TEM observation. The Al-Mg-Si-Cu-Ag alloy has the fastest age-hardening rate in the early aging period and the finest microstructure at the peak hardness among three alloys. Therefore the microstructure of the precipitate in Al–Mg–Si-Cu-Ag alloy has been investigated by HRTEM observation to understand the effect of Cu and Ag addition on aging precipitation.

Info:

Periodical:

Edited by:

T. Chandra, M. Ionescu and D. Mantovani

Pages:

81-83

Citation:

M. Tokuda et al., "TEM Observation of Cu and Ag Addition Al-Mg-Si Alloys", Advanced Materials Research, Vol. 409, pp. 81-83, 2012

Online since:

November 2011

Export:

Price:

$41.00

[1] Kotaro Yokota, Toshio Komatubara, Tatuo Sato, Akihiko Kamio, J. Japan. Inst. Light Metals, vol. 42 (1992)149-154.

[2] Kenji Matsuda, Kousuke Kido, Tokimasa Kawabata, Yasuhiro Uetani, Susumu Ikeno, J. Japan. Inst. Light Metals, vol. 53 (2003)528-533.

DOI: https://doi.org/10.2464/jilm.53.528

[3] Junya Nakamura, Kenji Matsuda, Tokimasa Kawabata, T. Sato, Y. Nakamura, Susumu Ikeno Materials Transactions vol. 51 (2010)310-316.

[4] D.J. Chakrabarti, Byung-ki Cheong, David E. Laughlim, Automotive AlloysⅡ(1998)27-44.