The effect of magnesium concentration and deformation on the ageing behaviour of Al-Mg alloys

Gurugubelli, Swami Naidu; Gupta, A.V.S.S.K.S.; Bhargava, N.R.M.R.

doi:10.1504/ijmatei.2013.052810

Cited by 3 publications

(1 citation statement)

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“…The escalation in hardness during aging treatment is mainly due to the hindrance of secondary solute rich phases. When the weight ratio of Mg to Si in Al 6061 alloy is greater than 1.73, there are more chances of precipitation of β phase (Mg 2 Si), θ phase (CuAl 2 ) and S phase (Al 2 CuMg) [12]- [13]. The precipitation of coherent needle-shaped β particles results in an increase in hardness [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of Precipitation Hardening on Stir Cast Al6061-B4c Reinforced Composite

Shankar

Jayashree

Sharma

et al. 2018

IJMPERD

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The focus of the present investigation is to enhance mechanical properties of two-stage stir cast Al6061-B 4 C (2, 4 and 6 wt.%) reinforced metal matrix composites by artificial aging treatment. The Optical and Scanning Electron Microscope show homogeneous distribution of reinforcements in the aluminum matrix. The composites were solutionized at 558ᴼC for 2 h and followed by water quenching. The samples were subjected to aging treatment in the range of 100, 150 and 200ᴼC for different time intervals. Lower aging temperature and higher aging time show substantial enhancement in hardness and tensile strength. Around 170% improvement in hardness and 100% improvement in tensile strength values were observed when aged at 100ᴼC with an increased weight percentage of reinforced particulates as compared to the unreinforced Al6061 alloy.

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Section: Introductionmentioning

confidence: 99%