Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 497, Issue 1-2, Pages 369-372Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.03.071
Keywords
Nanostructured material; Amorphous materials; Mechanical alloying; Mechanical properties; Microstructure; Transmission electron microscopy
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The effect of milling time on the structure and hardness of Fe-18Cr-4Mn-xN alloy powders processed by mechanical alloying is investigated According to X-ray diffraction and transmission electron microscopy evaluations, complete amorphization is achieved beyond 126 h of milling That is. the powders milled for the shorter durations are nanocrystal dispersed amorphous matrix composites Microindentations on the as-milled powders reveal that the hardness of the nanocomposites first Increases and then decreases by the amorphization progression However, the hardness of the fully amorphous alloys progressively decreases by increasing the milling time (C) 2010 Elsevier B V All rights reserved.
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