期刊
SCRIPTA MATERIALIA
卷 57, 期 5, 页码 369-372出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2007.05.009
关键词
iron alummides (based on FeAl); hardness; mechanical milling; nanocrystalline materials; grain size dependence
Changes of hardness occurring in milled FeAl intermetallics on annealing are examined and compared with the behaviour of conventional disordered Fe-base materials. A hardness peak is seen after annealing to about 500-600 degrees C which is explained by the precipitation and growth of fine oxide particles. There is no evidence to support any role of the state of order nor the presence of partial dislocations in affecting the hardness. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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