Effect of quenching rate on the microstructure of a rapidly solidified Al–5Sb alloy

Orientation of nanocrystals in rapidly solidified Al-based alloys and its correlation to the compound-forming tendency of alloys

“…The microstructure of the melt-spun Al-5 Sb alloy is composed of primary AlSb phase embedded in the matrix comprising a-Al cells with nanoscale AlSb particles or a-Al/AlSb eutectic [31,32]. The SAED pattern from the intercellular area shows a monocrystalline characteristic.…”

“…So far, however, less attention has been paid to the orientation of nanocrystals themselves in local areas of rapidly solidified Al-based alloys. In our former work, the microstructure and phase constitution of rapidly solidified Al-Sr [24][25][26][27], Al-Ce [28][29][30], Al-Sb [31,32] and Al-Ce-Sr [33] alloys have been characterized in detail. The present work aims at investigating the crystallographic orientation (growth orientation and epitaxial orientation relationship) of nanocrystals in the rapidly solidified Al-based alloys.…”