2020
DOI: 10.1039/d0ra02744h
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Structure and mechanical behavior ofin situdeveloped Mg2Si phase in magnesium and aluminum alloys – a review

Abstract: The demand for lightweight, high specific strength alloys has drastically increased in the last two decades.

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Cited by 48 publications
(13 citation statements)
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“…[1][2][3] In the present scenario, magnesium alloy is gradually introduced to reduce weight due to its low density joined with aluminium alloy. [4][5][6] The magnesium density value is almost 2/3 rd that of aluminium, 1/4 th of zinc and 1/5 th of steel. Magnesium alloys are a balance between traditional technical alloys and a higher level of specific strength.…”
Section: Introductionmentioning
confidence: 97%
“…[1][2][3] In the present scenario, magnesium alloy is gradually introduced to reduce weight due to its low density joined with aluminium alloy. [4][5][6] The magnesium density value is almost 2/3 rd that of aluminium, 1/4 th of zinc and 1/5 th of steel. Magnesium alloys are a balance between traditional technical alloys and a higher level of specific strength.…”
Section: Introductionmentioning
confidence: 97%
“…However, at a low solidification rate, eutectic Mg 2 Si phases with Chinese character shapes generally precipitate from Mg-Al-Si alloys, and when the Si content exceeds 1.38 wt.%, coarse dendritic primary Mg 2 Si phases with sharp corners and edges may appear, which will cause stress concentration and become a crack source, thereby deteriorating the strength and ductility of the alloy [ 7 ]. Therefore, it is necessary to control the size, morphology, and distribution of the Mg 2 Si phases to improve the comprehensive mechanical properties of these alloys [ 8 , 9 , 10 ].…”
Section: Introductionmentioning
confidence: 99%
“…During die casting, small pores and shrinkage porosity are prone to appear in the casting, lowering the plasticity of the die casting, so it is not suitable to work under impact load and vibration and die castings usually cannot be used for hot extrusion. Under ordinary gravity casting, the Mg 2 Si phase of the alloy exists in the form of a Chinese script type after solidification [6]. From a mechanical point of view, this phase is easy to cause stress concentration and become a crack source, which eventually leads to the decline of the mechanical properties of the alloy, and this phase is difficult to eliminate by heat treatment.…”
Section: Introductionmentioning
confidence: 99%