Production of Fe-TiN and Fe-Ti(N,C) composite powders by mechanical alloying
الموضوعات :
S Nazari
1
(Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Isfahan,Iran)
A Saidi
2
(Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran)
A Shafyei
3
(Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran)
الکلمات المفتاحية: Metal Matrix Composite, mechanical alloying, Combustion synthesis, Titanium Nitride, Titanium Carbonitride,
ملخص المقالة :
In this research, the production of Fe-TiN and Fe-Ti(N,C) composite powders by mechanical alloying was investigated and evaluated. Ferrotitanium (containing 70%Ti), titanium and graphite were used as the raw materials. Initial mixtures were milled in different time durations under the pure nitrogen atmosphere with the pressure of 5atm. The results showed that when N2 pressure is 5 atm and milling time lasts 5 h, reaction starts and after 10 h, FeTi2 is completely converted to TiN. Also, the role of graphite as the active material of the reaction was investigated and it was found that it leads to the production of titanium carbonitride in the iron matrix.
