Effect of Sc and Zr alloying on microstructure and precipitation evolution of as cast Al–B4C metal matrix composites
作者： J Lai , Z Zhang , XG Chen , None
DOI: 10.1179/1743284712Y.0000000061
关键词: Nanoscopic scale 、 Optical microscope 、 Matrix (chemical analysis) 、 Materials science 、 Metal 、 Precipitation hardening 、 Interfacial reaction 、 Composite material 、 Microstructure 、 Precipitation (chemistry)
摘要: Additions of Sc and Zr were introduced into Al–15 vol.-%B4C composites, eight experimental composites with different levels prepared via a conventional cast process. Optical microscopy, SEM TEM applied for observing the as microstructures, including interfaces between Al matrix B4C well evolution precipitates. It was found that involved interfacial reactions partially consumed Sc. On other hand, no major reaction products in interfaces, part remained precipitation strengthening. The addition yielded considerable strengthening peak aged conditions. combination significantly enhanced Nanoscale precipitates Al3Sc Al3(Sc,Zr) microstructure contributed to significant increase hardness.
sci-hub.se 参考文章(30)
V. V. Zakharov, Effect of scandium on the structure and properties of aluminum alloys Metal Science and Heat Treatment. ,vol. 45, pp. 246- 253 ,(2003) , 10.1023/A:1027368032062
Marc A. Meyers, Krishan Kumar Chawla, Mechanical metallurgy : principles and applications ,(1983)
J. Gilbert Kaufman, Properties of Aluminum Alloys: Tensile, Creep, and Fatigue Data at High and Low Temperatures ,(2000)
J. C VIALA, J BOUIX, G GONZALEZ, C ESNOUF, Chemical reactivity of aluminium with boron carbide Journal of Materials Science. ,vol. 32, pp. 4559- 4573 ,(1997) , 10.1023/A:1018625402103
G. Levchenko, A. Lyashchenko, V. Baumer, A. Evdokimova, V. Filippov, Yu. Paderno, N. Shitsevalova, Preparation and some properties of ScB2 single crystals Journal of Solid State Chemistry. ,vol. 179, pp. 2949- 2953 ,(2006) , 10.1016/J.JSSC.2006.05.022
D. Zhao, F.R. Tuler, D.J. Lloyd, Fracture at elevated temperatures in a particle reinforced composite Acta Metallurgica Et Materialia. ,vol. 42, pp. 2525- 2533 ,(1994) , 10.1016/0956-7151(94)90333-6
Keith E. Knipling, David N. Seidman, David C. Dunand, Ambient- and high-temperature mechanical properties of isochronally aged Al-0.06Sc, Al-0.06Zr and Al-0.06Sc-0.06Zr (at.%) alloys Acta Materialia. ,vol. 59, pp. 943- 954 ,(2011) , 10.1016/J.ACTAMAT.2010.10.017
Keith E. Knipling, David C. Dunand, David N. Seidman, Precipitation evolution in Al-Zr and Al-Zr-Ti alloys during isothermal aging at 375-425 °C Acta Materialia. ,vol. 56, pp. 114- 127 ,(2008) , 10.1016/J.ACTAMAT.2007.09.004
G. Bonnet, V. Rohr, X.-G. Chen, J.-L. Bernier, R. Chiocca, H. Issard, Use of Alcan's Al-B4C metal matrix composites as neutron absorber material in TN International's transportation and storage casks Packaging, Transport, Storage and Security of Radioactive Material. ,vol. 20, pp. 98- 102 ,(2009) , 10.1179/174651009X416880
I. A. Ibrahim, F. A. Mohamed, E. J. Lavernia, Particulate reinforced metal matrix composites — a review Journal of Materials Science. ,vol. 26, pp. 1137- 1156 ,(1991) , 10.1007/BF00544448