Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-26T21:57:25.958Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of cryogenic milling on Al7075 prepared by spark plasma sintering method

Published online by Cambridge University Press:  08 May 2017

Frantisek Lukac Open the ORCID record for Frantisek Lukac [Opens in a new window] ,
Tomas Chraska ,
Orsolya Molnarova ,
Premysl Malek  and
Jakub Cinert
Frantisek Lukac*
Affiliation:
Institute of Plasma Physics, Academy of Sciences of the Czech Republic, Czech Republic
Tomas Chraska
Affiliation:
Institute of Plasma Physics, Academy of Sciences of the Czech Republic, Czech Republic
Orsolya Molnarova
Affiliation:
Department of Physics of Materials, Mathematics and Physics Faculty, Charles University, Czech Republic
Premysl Malek
Affiliation:
Department of Physics of Materials, Mathematics and Physics Faculty, Charles University, Czech Republic
Jakub Cinert
Affiliation:
Institute of Plasma Physics, Academy of Sciences of the Czech Republic, Czech Republic Department of Electrotechnology, Faculty of Electrical Engineering, Czech Technical University, Czech Republic
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Precipitation of secondary intermetallic phases in aluminium alloy Al7075 sintered by spark plasma sintering method from powders milled at room and cryogenic temperature was studied by X-ray powder diffraction. Deformation energy stored during cryogenic milling influences the precipitation in Al7075 alloy. High temperature X-ray diffraction experiment revealed the potential for further precipitation strengthening of samples prepared by spark plasma sintering of milled powders. It was established that the correction of absorption edge of metal Kβ-line filter used for laboratory sources greatly enhances the precision of quantitative Rietveld analysis as well as the determination of precipitates’ crystallite sizes.

Keywords

Intermetallic precipitatescryogenic millingpowder metallurgyultrafine-grained materialsAl7075
Type
Technical Articles
Information
Powder Diffraction , Volume 32 , Supplement S1 , September 2017 , pp. S221 - S224
Check for updates
Copyright
Copyright © International Centre for Diffraction Data 2017 

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

Becker, H., Dopita, M., Stráská, J., Málek, P., Vilémová, M., and Rafaja, D. (2015). “Microstructure and properties of spark plasma sintered Al–Zn–Mg–Cu alloy,” Acta Phys. Polon. A 128(4), 602–605. Doi: 10.12693/APhysPolA.128.602.CrossRefGoogle Scholar
Berger, H. (1986). “Study of the Kα emission spectrum of copper,” X-Ray Spectrom. 15(4), 241–243. Doi: 10.1002/xrs.1300150405.CrossRefGoogle Scholar
Bergmann, J., Kleeberg, R., Haase, A., and Breidenstein, B. (2000). “Advanced fundamental parameters model for improved profile analysis,” Mater. Sci. Forum 347–349, 303–308. Doi: 10.4028/www.scientific.net/MSF.347-349.303.Google Scholar
Coelho, A. A. (2016). TOPAS version 5 (Computer Software) (Coelho Software, Brisbane).Google Scholar
Guillon, O., Gonzalez-Julian, J., Dargatz, B., Kessel, T., Schierning, G., Räthel, J., and Herrmann, M. (2014). “Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments: FAST/SPS: mechanisms, materials, and technology developments,” Adv. Eng. Mater. 16(7), 830–849. Doi: 10.1002/adem.201300409.CrossRefGoogle Scholar
Hölzer, G., Fritsch, M., Deutsch, M., Härtwig, J., and Förster, E. (1997). “Kα1, 2 and Kβ1, 3 X-ray emission lines of the 3D transition metals,” Phys. Rev. A 56(6), 4554–4568. Doi: 10.1103/PhysRevA.56.4554.CrossRefGoogle Scholar
Liu, J. Z., Chen, J. H., Yang, X. B., Ren, S., Wu, C. L., Xu, H. Y., and Zou, J. (2010). “Revisiting the precipitation sequence in Al–Zn–Mg-Based alloys by high-resolution transmission electron microscopy,” Scr. Mater. 63(11), 1061–1064. Doi: 10.1016/j.scriptamat.2010.08.001.CrossRefGoogle Scholar
Madsen, I. C., Scarlett, N. V. Y., and Webster, N. A. S. (2012). “Quantitative phase analysis,” In Uniting Electron Crystallography and Powder Diffraction, edited by Kolb, U., Shankland, K., Meshi, L., Avilov, A., and David (, W. I. F. Springer Netherlands, Dordrecht), pp. 207–218. http://www.springerlink.com/index/10.1007/978-94-007-5580-2_19.CrossRefGoogle Scholar
Molnarova, O., Malek, P., and Becker, H. (2015). “The investigation of the Al7075+1 wt% Zr alloy prepared using spark plasma sintering technology,” Metal 2015: 24th Int. Conf. Metallurgy and Materials, 1221–1226.Google Scholar
Scardi, P., Leoni, M., and Delhez, R. (2004). “Line broadening analysis using integral breadth methods: a critical review,” J. Appl. Crystallogr. 37(3), 381–390. Doi: 10.1107/S0021889804004583.CrossRefGoogle Scholar
Wert, J. A. (1981). “Identification of precipitates in 7075 Al after high-temperature aging,” Scr. Metall. 15(4), 445–447. Doi: 10.1016/0036-9748(81)90228-3.CrossRefGoogle Scholar