Please use this identifier to cite or link to this item:
|Title:||Unidirectional solidification of a Zn-rich Zn-2.17 wt%Cu hypo-peritectic alloy|
|Citation:||Ma, D., Li, Y., Ng, S.C., Jones, H. (2001-03). Unidirectional solidification of a Zn-rich Zn-2.17 wt%Cu hypo-peritectic alloy. Science and Technology of Advanced Materials 2 (1) : 127-130. ScholarBank@NUS Repository. https://doi.org/10.1016/S1468-6996(01)00038-9|
|Abstract:||Unidirectional solidification of a Zn-rich Zn-2.17 wt%Cu hypo-peritectic alloy has been carried out to investigate the microstructure evolution over the growth velocity range 0.02-4.82 mm/s at a temperature gradient of 15 K/mm by means of the Bridgman technique. Regular and plate-like two-phase cellular structures were observed in samples grown at growth velocities V above 0.48 and 2.64 mm/s, respectively. The dominant microstructure in samples grown below 0.22 mm/s was dendrites of primary ε in a matrix of secondary η. Intercellular spacing Λ decreased with increasing growth velocity V such that ΛV1/2 is a constant of 316 ± 55 μm3/2/s1/2. Secondary dendrite arm spacing λ2 of primary ε decreased with increasing V such that λ2V1/3 is a constant of 14.9 ± 0.9 μm4/3/s1/3. The observed transition from regular cells to plate-like cells of η is discussed on the basis of competitive growth and crystallographic effect. © 2001 Published by Elsevier Science Ltd.|
|Source Title:||Science and Technology of Advanced Materials|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 21, 2018
WEB OF SCIENCETM
checked on May 7, 2018
checked on May 25, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.