Study on the Preparation of TiN Nano-Particles in a Solidified Low Alloy Steel
By using vacuum melting, nitrogen protection and a high molten flow rate during pouring, many nano-TiN particles with the size of 20~100nm are formed during solidification of the alloy steel composed of C0.12- Si0.24 - Mo0.45 - Cr0.35 - V0.2 - Ti0.29 (wt.%). In addition, there are 0.9-1.4μm micron-sized particles separated by a space of 15~40μm. Precipitable TiN particles greatly refine the microstructure of the alloy steel. In this paper, the thermodynamic, kinetic mechanisms and related factors of TiN formation are analyzed.
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
G. B. Lin et al., "Study on the Preparation of TiN Nano-Particles in a Solidified Low Alloy Steel", Advanced Materials Research, Vols. 295-297, pp. 742-746, 2011