Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-05T09:48:38.940Z Has data issue: false hasContentIssue false

Microstructural changes in welded Zn–Al alloy

Published online by Cambridge University Press:  31 January 2011

Yao Hua Zhu
Affiliation:
Instituto de Investigaciones en Materiales, UNAM Apdo. P. 70–360, Mexico D.F. 04510, Mexico
Get access

Abstract

Extruded eutectoid Zn–Al alloy was welded by a melt of the same eutectoid alloy. Two different microstructures were observed in the joint part and in the bulk of the welded alloy. Typical dendritic structure of as-cast Zn–Al alloy was observed in the joint part of the welded alloy. The bulk of the welded Zn–Al alloy appeared as fine grain structure. Two different metastable phases, η′T decomposed from η′s of the chilled as-cast state and η′E of the extruded state, were found to be unstable during the early stages of aging. A four-phase transformation occurred after the decompositions of these two metastable phases of η′T. Microstructures of both the joint part and bulk of the welded alloy were investigated simultaneously during the aging processes.

Type
Articles
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Zhu, Y. H., Chin. J. Met. Sci. Technol. 6, 125 (1990).Google Scholar
2.Zhu, Y. H., Torres-Villaseñor, G. and Piña, C., J. Mater. Sci. 29, 1549 (1994).CrossRefGoogle Scholar
3.Zhu, Y. H. and Goodwin, F. E., J. Mater. Sci. Technol. 10, 121 (1994).Google Scholar
4.Zhu, Y. H. and Murphy, S., Cin. J. Met. Sci. Technol. 65, 261 (1987).Google Scholar
5.Zhu, Y. H., Yan, B., and Huang, W., Symp. Proc. Zn–Al Casting Alloys, Toronto, Canada (1986), p. 23.Google Scholar
6.Zhu, Y. H., Huang, W., and Yan, B., Shanghai Metals (Nonferous Fascicule) 9, 1 (1988).Google Scholar
7.Zhu, Y. H. and Goodwin, F. E., J. Mater. Res. 8, 3043 (1993).CrossRefGoogle Scholar
8.Krol, J. and Wegrezyn, K., Archiwum Hutnictwa, 17, 119 (1971).Google Scholar
9.Ciach, R., Krol, J., and Wegrezyn, K., Bulletin de LACADEMIE Polonais des Science serie des Sciences Techniques 17 (4), 341 (1969).Google Scholar
10.Murphy, S., Z. Metallk. 71, 96 (1980).Google Scholar
11.Zhu, Y. H. and Murphy, S., Chin. J. Met. Sci. Technol. 2, 105 (1986).Google Scholar
12.Zhu, Y. H., Chin. J. Met. Sci. Technol. 5, 113 (1989).Google Scholar