羊奶
材料科学
纳米晶材料
晶粒生长
冶金
动力学
合金
退火(玻璃)
活化能
粒度
化学工程
金属间化合物
物理化学
纳米技术
工程类
物理
化学
量子力学
作者
Rong Ren,Yucheng Wu,Wenming Tang,Feng-tao Wang,Zheng Zhang
标识
DOI:10.1166/jnn.2010.1927
摘要
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.
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