NDLI: Micromechanical behavior of β-Al3Mg2-dispersed aluminum composite prepared by high-energy ball milling and hot pressing

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Micromechanical behavior of β-Al3Mg2-dispersed aluminum composite prepared by high-energy ball milling and hot pressing

Content Provider	SAGE Publishing
Author	Maity, Shubhadeep Chabri, Sumit Chatterjee, Subhranshu Bera, Supriya Sinha, Arijit
Copyright Year	2016
Abstract	The present investigation deals with the ball milling of Al–Mg, which results in the formation of metastable fcc solid solutions after 100 h that transform into more stable β-Al3Mg2 phase during subsequent annealing treatment. Powder metallurgy route was successfully employed to synthesize different weight fractions of low density β-Al3Mg2 dispersed Al matrix composites. Maximum hardness was achieved for 15 wt% β-Al3Mg2-dispersed Al composites. Compacted composites display lower hardness for higher percentage (20 wt%) of dispersing phase due to possible agglomeration. Nanomechanical properties as obtained from nanoindentation and nanoscratch measurements substantiate the results obtained from the microhardness measurements. Moreover, the significant hardening of the Al matrix was successfully achieved by incorporation of low density β-Al3Mg2 phase.
Related Links	https://journals.sagepub.com/doi/pdf/10.1177/0021998316673705?download=true
ISSN	00219983
Journal	Journal of Composite Materials (JCM)
e-ISSN	1530793X
DOI	10.1177/0021998316673705
Language	English
Publisher	Sage Publications UK
Publisher Date	2016-10-07
Publisher Place	London
Access Restriction	Open
Rights Holder	© The Author(s) 2016
Subject Keyword	β-Al3Mg2 powder metallurgy Mechanical alloying nanoindentation nanoscratch metal matrix composite
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Materials Chemistry Mechanics of Materials Mechanical Engineering

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