J. Phys. IV France
Volume 110, September 2003
Page(s) 803 - 808

J. Phys. IV France
110 (2003) 803
DOI: 10.1051/jp4:20020792

Dynamic compaction domain (shock compaction energy vs. $\rho_0/\rho$) for a Fe-15 atomic % Cu nanometric alloy obtained by mechanical alloying

R.G. Esquives1, 2, E.M. Orozco3, C.T. Renero3 and D.V. Jaramillo2

1  Universidad del Valle de Mexico, Lomas Verdes, Mexico
2  Metallurgical Department, ESIQIE-IPN, Mexico 07738, Mexico
3  Physics Institute, UNAM, Mexico

A Fe-15 atomic percentage Cu mixture was processed by Meehanical Alloying, in a Spex 8000D, and Dynamically Compacte, in a light gas gun, The MA as-powder product was a supersaturated solid solution with a BCC structure (a=0.28736 mn). Nanometric grain sizes between 6 to 30 nm were obtained. Different impact velocities on precompacted cylindrical specimens were used to obtain bulk specimens. The energy used for compaction was between 6 to 10% of the impact energy. XRD and TEM showed no structural changes after DC. We are proposing a Dynamic Compaction Domain in the shock compaction energy vs. $\rho_0/\rho$ plane, were consolidation of nanometric powders can take place.

© EDP Sciences 2003