Structural evolution and grain growth kinetics of the mechanically alloyed Fe50Al50 during heat treatment

Rong Ren; Yucheng Wu; Wenming Tang; Fengtao Wang; Zhixiang Zheng

doi:10.1166/jnn.2010.1927

Structural evolution and grain growth kinetics of the mechanically alloyed Fe50Al50 during heat treatment

J Nanosci Nanotechnol. 2010 Aug;10(8):5418-21. doi: 10.1166/jnn.2010.1927.

Authors

Rong Ren¹, Yucheng Wu, Wenming Tang, Fengtao Wang, Zhixiang Zheng

Affiliation

¹ School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, PR China.

PMID: 21125910
DOI: 10.1166/jnn.2010.1927

Abstract

Nanocrystalline FeAl powder is synthesized by subsequent heat treating the Fe50Al50 (at.%) alloy prepared by mechanical alloying. During annealing the milled FeAl powder, the grain growth of B2-FeAl occurs with the order transformation from Fe(Al) to B2-FeAl. The activation energy for the nanocrystalline FeAl growth is calculated to be 534.9 kJ/mol, according to the kinetics theory of nanocrystalline growth. The grain growth of FeAl is significantly inhibited especially at elevated temperature.

Publication types

Research Support, Non-U.S. Gov't