EFFECT OF BALL-MILLING ON MECHANICAL PROPERTIES OF Mg – 3 % Al ALLOYS
https://doi.org/10.57070/2304-4497-2023-2(44)-72-78
Abstract
The mechanical properties of any structural material are among the most influential factors in determining its potential application. The aim of this study is to look at how ball-milling affects the mechanical properties of Mg – 3 % Al alloy. Powder metallurgy approach integrating room temperature ball milling at different duration, cold powder compaction, sintering at inert atmosphere, and hot extrusion techniques were used to fabricate high quality ultra-fine grained and nanocrystalline Mg – 3 % Al alloy samples. X-ray diffraction (XRD) analysis revealed a quick reduction in grain size followed by saturation of the grain size at around 36 nm in 30 hrs of milling. In order to investigate the effect of grain refinement on the stress-strain response of the alloy, the extruded samples were then subjected to large compressive strains under uniaxial compressive loading. Micro-indentation studies were conducted with three separate peak loads of 3 N, 5 N, and 7 N to investigate the micromechanical behaviour of the alloy produced from different milling durations. The loading-unloading curve of the micro-indentation test was found to be strongly influenced by milling duration of the elemental powder. The grain refining affect was clearly seen in measurements of microhardness and indentation modulus.
Supporting agencies: The work was carried out within the framework of the state task 0809-2021-0013
About the Authors
Ashis Mallick
Indian Institute of Thechnology (ISM) Dhanbad
India
India
Associate Professor, Mechanical Engi-neering Department
Sergey Konovalov
Siberian State Industrial University
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Prof., Vice-Rector for Research and Innovation
Irina Panchenko
Siberian State Industrial University
Russian Federation
Russian Federation
Sci. (Eng.), Assist. Prof. of the Chair of Quality Management and Innovation
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Review
For citations:
Mallick A., Konovalov S., Panchenko I. EFFECT OF BALL-MILLING ON MECHANICAL PROPERTIES OF Mg – 3 % Al ALLOYS. Bulletin of the Siberian State Industrial University. 2023;(2):72-78. (In Russ.) https://doi.org/10.57070/2304-4497-2023-2(44)-72-78
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