CLC number: TG146.2+1
On-line Access:
Received: 2000-06-01
Revision Accepted: 2000-09-21
Crosschecked: 0000-00-00
Cited: 0
Clicked: 5085
YAN Mi, LUO Wei, WU Zhen-tai. MICROSTRUCTURE OF AS-MELT SPUN Al-Cu-Mg-Fe-Ni ALLOY AND ITS VARIATION IN CONTINUOUS HEAT TREATMENT[J]. Journal of Zhejiang University Science A, 2001, 2(2): 121-127.
@article{title="MICROSTRUCTURE OF AS-MELT SPUN Al-Cu-Mg-Fe-Ni ALLOY AND ITS VARIATION IN CONTINUOUS HEAT TREATMENT",
author="YAN Mi, LUO Wei, WU Zhen-tai",
journal="Journal of Zhejiang University Science A",
volume="2",
number="2",
pages="121-127",
year="2001",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2001.0121"
}
%0 Journal Article
%T MICROSTRUCTURE OF AS-MELT SPUN Al-Cu-Mg-Fe-Ni ALLOY AND ITS VARIATION IN CONTINUOUS HEAT TREATMENT
%A YAN Mi
%A LUO Wei
%A WU Zhen-tai
%J Journal of Zhejiang University SCIENCE A
%V 2
%N 2
%P 121-127
%@ 1869-1951
%D 2001
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2001.0121
TY - JOUR
T1 - MICROSTRUCTURE OF AS-MELT SPUN Al-Cu-Mg-Fe-Ni ALLOY AND ITS VARIATION IN CONTINUOUS HEAT TREATMENT
A1 - YAN Mi
A1 - LUO Wei
A1 - WU Zhen-tai
J0 - Journal of Zhejiang University Science A
VL - 2
IS - 2
SP - 121
EP - 127
%@ 1869-1951
Y1 - 2001
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2001.0121
Abstract: A commercial AA2618 alloy was treated through melt spinning at rotating speeds of 20 and 40 m·s-1. The as-melt spun ribbons were characterized by a combination of optical microscopy (OPM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The microstructural evolution of the ribbons in a continuous heating process was investigated, and the microhardness was also measured under different conditions. It was found that AlxFeNi is prone to precipitate in AA2618 alloy due to the minimal solubility of iron and nickel. Fine AlxFeNi particles appeared along the grain boundaries at the chilling sides of as-melt spun ribbons, and at both the grain boundaries and in the interior of grains at the free sides. On continuous heating AlxFeNi precipitated steadily and uniformly throughout the matrix until melting. The microhardness of as-melt spun ribbons decreased significantly from the chilling surfaces to free surfaces. Precipitation of AlxFeNi lowered the hardness of the alloy.
[1] Birol, Y., 1996. Microstructural characterization of a rapidly-solidified Al-12wt% Si alloy. J. Mater. Sci., 31: 2139.
[2] Cantor,B., 1994. Development of microstructure in advanced solidification processing. Micron. 25: 551.
[3] Chen, S. L., Zuo,Y., Liang, H. et al., 1997. A thermodynamic description for the ternary Al-Mg-Cu system. Metall. Mater. Trans., A. 28A: 435.
[4] Gomes,R. M., Sato,T., Tezuka, H. et al., 1996. Precipitation strengthening and mechanical properties of hypereutectic P/M Al-Si-Cu-Mg alloys containing Fe and Ni. Mater. Sci. Forum. 217-222: 789.
[5] Huang, C.C., and Chen,S.W., 1995. Phase equilibria of Al-rich Al-Cu-Mg alloys. Metall. Mater. Trans., A. 26A: 1007.
[6] Hunt, J.D., 1984. Steady state columar and equiaxed growth of dendrites and entectic. Mater. Sci. Eng., 65: 75.
[7] Jones, H., 1969. Observation on a structural transition in aluminum alloy hardened by rapid solidification. Mater. Sci. Eng., 5: 1.
[8] Oguocha, I. N. A., Yannacopoulos, S., 1996a. Natural ageing behaviour of cast alumina particle-reinforced 2618 aluminium alloy. J. Mater. Sci., 31: 3145.
[9] Oguocha, I. N. A., Yannacopoulos, S., and Jin,Y., 1996b. The structure of AlxFeNi phase in Al-Cu-Mg-Fe-Ni alloy (AA2618). J. Mater. Sci., 31: 5615.
[10] Rieker,C. and Morris,D.G.,1991. Equaixed microstructure by rapid solidification. Mater. Sci. Eng.,A133: 854.
[11] Shih, H. C., Ho, N. J., and Huang, J.C., 1996. Precipitation behaviors in Al-Mg-Cu and 2024 aluminum alloy. Metall. Mater. Trans., A. 27A: 2479.
[12] Willey, L.A., 1973. Metals Handbook, Metallography, Structures and Phase Diagrams, 8th edition, ASM, Metal Park, OH, 8: 386.
[13] Yao, J.Y., Geoffrey A. E. and Daniel A. G. et al., 1996. Precipitation and age-hardening in Al-Si-Cu-Mg-Fe casting alloys. Mater. Sci. Forum, 217-222: 777.
[14] Zhang, D. L., and Cantor, B., 1991.Heterogeneous nucleation of solidification of Si by solid Al in hypoeutectic Al-Si alloy. In: Proceedings of the 2nd European Conference on Advanced Materials and Processes, edited by Cline T.W. and Withers P. J., London, p.197.
[15] Zhou, J., Duszczyk J., Korevaar, B. M., 1991. Structural development during the extrusion of rapidly solidified Al-20Si-5Fe-3Cu-1Mg alloy. J. Mater. Sci., 26: 824.
Open peer comments: Debate/Discuss/Question/Opinion
<1>