Bulk amorphous and nanocrystalline Al60Fe20Ti20 and Al65Fe18Ti12Ni5 alloys

Marek Krasnowski

Abstract

Amorphous 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.
Author Marek Krasnowski (FMSE / DCFM)
Marek Krasnowski,,
- Division of Construction and Functional Materials
Journal seriesMaterials Letters, ISSN 0167-577X, (A 35 pkt)
Issue year2019
Vol239
Pages113-115
Publication size in sheets0.3
Keywords in EnglishAmorphous materials, Nanocrystalline materials, Intermetallics, Mechanical alloying, Consolidation
ASJC Classification2210 Mechanical Engineering; 2211 Mechanics of Materials; 3104 Condensed Matter Physics; 2500 General Materials Science
DOIDOI:10.1016/j.matlet.2018.12.090
URL https://doi.org/10.1016/j.matlet.2018.12.090
projectAmorphous 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
WIM Projekty finansowane przez MNiSW
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.887; WoS Impact Factor: 2017 = 2.687 (2) - 2017=2.452 (5)
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