skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Microstructural evolution during the initial stages of spray atomization and deposition

Abstract

The material used in the present investigation was 7150 Al with a composition (in wt%) of 5.9--6.9 Zn, 1.9--2.5 Cu, 2.0--2.7 Mg, 0.12 Si, 0.15 Fe, 0.10 Mn, 0.08--0.15 Zr, 0.04 Cr and 0.06 Ti, balance aluminum. The spray atomization and deposition experiment was conducted as follows. The alloy was melted and superheated to 850 C. The molten material was disintegrated into a dispersion of micron-sized droplets by using nitrogen at a pressure of 1.20 MPa. Subsequently, the atomized droplets were deposited onto a water-cooled copper substrate to be collected as a coherent, dense preform. The substrate was positioned at a distance of approximately 36 cm below the atomizer. The microstructural observation of the as-deposited material was conducted by using optical microscopy. Samples were sectioned along the central line of the deposited material. The polished samples were etched by using Keller`s reagent. The grain size was measured through the line intercept method.

Authors:
;  [1]
  1. Univ. of California, Irvine, CA (United States). Dept. of Chemical and Biochemical Engineering and Materials Science
Publication Date:
OSTI Identifier:
691339
Resource Type:
Journal Article
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 41; Journal Issue: 5; Other Information: PBD: 6 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MICROSTRUCTURE; DEPOSITION; ALUMINIUM BASE ALLOYS; LIQUID METALS; ATOMIZATION; SPRAYED COATINGS; MICROSCOPY; DATA

Citation Formats

Xu, Q., and Lavernia, E.J. Microstructural evolution during the initial stages of spray atomization and deposition. United States: N. p., 1999. Web. doi:10.1016/S1359-6462(99)00147-5.
Xu, Q., & Lavernia, E.J. Microstructural evolution during the initial stages of spray atomization and deposition. United States. doi:10.1016/S1359-6462(99)00147-5.
Xu, Q., and Lavernia, E.J. Fri . "Microstructural evolution during the initial stages of spray atomization and deposition". United States. doi:10.1016/S1359-6462(99)00147-5.
@article{osti_691339,
title = {Microstructural evolution during the initial stages of spray atomization and deposition},
author = {Xu, Q. and Lavernia, E.J.},
abstractNote = {The material used in the present investigation was 7150 Al with a composition (in wt%) of 5.9--6.9 Zn, 1.9--2.5 Cu, 2.0--2.7 Mg, 0.12 Si, 0.15 Fe, 0.10 Mn, 0.08--0.15 Zr, 0.04 Cr and 0.06 Ti, balance aluminum. The spray atomization and deposition experiment was conducted as follows. The alloy was melted and superheated to 850 C. The molten material was disintegrated into a dispersion of micron-sized droplets by using nitrogen at a pressure of 1.20 MPa. Subsequently, the atomized droplets were deposited onto a water-cooled copper substrate to be collected as a coherent, dense preform. The substrate was positioned at a distance of approximately 36 cm below the atomizer. The microstructural observation of the as-deposited material was conducted by using optical microscopy. Samples were sectioned along the central line of the deposited material. The polished samples were etched by using Keller`s reagent. The grain size was measured through the line intercept method.},
doi = {10.1016/S1359-6462(99)00147-5},
journal = {Scripta Materialia},
number = 5,
volume = 41,
place = {United States},
year = {1999},
month = {8}
}