Bulk amorphous and nanocrystalline Al60Fe20Ti20 and Al65Fe18Ti12Ni5 alloys
AbstractAmorphous Al60Fe20Ti20 and Al65Fe18Ti12Ni5 alloys were produced by mechanical alloying. Thermal behaviour examinations revealed that the crystallisation onset temperatures are 557 °C and 539 °C for the Al60Fe20Ti20 and the Al65Fe18Ti12Ni5 alloy respectively. The crystallisation products were nanocrystalline 2-type phases. The mechanically alloyed powders were consolidated at temperatures ensuring maintaining amorphous structure and at 1000 °C. After consolidation at 1000 °C the samples consisted of nanocrystalline 2-type phases and Al5Fe2 phase. The hardness of the amorphous and nanocrystalline Al60Fe20Ti20 alloy is 8.04 GPa and 9.37 GPa respectively, whereas that of the amorphous and nanocrystalline Al65Fe18Ti12Ni5 alloy is 7.69 GPa and 8.79 GPa respectively. The density of the amorphous and nanocrystalline Al60Fe20Ti20 alloy is 4.113 g/cm3 and 4.20 g/cm3 respectively, while that of the amorphous and nanocrystalline Al65Fe18Ti12Ni5 alloy is 4.111 g/cm3 and 4.278 g/cm3 respectively. The hardness of the produced low-density materials is relatively high. To the best of our knowledge, such materials were produced for the first time.
|Journal series||Materials Letters, ISSN 0167-577X, (A 35 pkt)|
|Publication size in sheets||0.3|
|Keywords in English||Amorphous materials, Nanocrystalline materials, Intermetallics, Mechanical alloying, Consolidation|
|ASJC Classification||; ; ;|
|project||Amorphous and nanocrystalline Al based alloys (Al-Fe and Al-Fe-(Ti,Si,Ni)) produced by mechanical alloying and consolidation of powders. Project leader: Krasnowski Marek,
, Phone: 22 234 87 16, start date 17-10-2006, end date 16-04-2009, N507 057 31/1290, Completed
|Score|| = 35.0, 08-01-2019, ArticleFromJournal|
= 35.0, 08-01-2019, ArticleFromJournal
|Publication indicators||: 2017 = 0.887; : 2017 = 2.687 (2) - 2017=2.452 (5)|
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