Microstructure and mechanical properties of as cast AZ31 with addition of germanium

Liu, H. B.; Zhang, X. G.; Qi, Guo; Pang, Ling; T., Y.; Ji, Shunying; Zhang, H. Y.

doi:10.1179/143307510x12719005364341

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…(1) Elimination of residual porosities and absence of interfacial reactions between the reinforcements and the matrix can be ensured in the final products due to the high pressure applied. (2) It is easy to control the volume fraction of reinforcements, the distribution of reinforcements is quite uniform [10,11].…”

Section: Introductionmentioning

confidence: 99%

Squeeze Cast Co-Continuous AlN/Al Composites

Yang

et al. 2014

MSF

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The co-continuous AlN composites with different Al contents were fabricated through the squeeze casting of porous AlN preform with varied porosities obtained by carbothermal reduction. The effects of volume fraction of Al phase and the heat treatment temperature on the mechanical properties of composites were investigated. The change of the mechanical properties of composites with the Al content was in line with the mixed rule. With an increase in the Al content, the fracture toughness increased, the Vickers hardness and the flexural strength decreased. The toughen mechanism of composites included ductile rupture and microcrack toughening. The avoiding of excessive interface reaction between AlN and Al was beneficial to the mechanical properties of composites. With an increase in the heat treatment temperature, the stress and the dislocation due to mismatch in the coefficients of thermal expansion increased, the fracture toughness decreased, the vickers hardness and the flexural strength increased.

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Section: Introductionmentioning

confidence: 99%

Squeeze Cast Co-Continuous AlN/Al Composites

Yang

et al. 2014

MSF

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“…Nowadays, die casting remains a popular processing technique for Mg and its alloys. However, such a casting method can produce defects of many species such as porosity, dendritic segregation and inclusions, which along with low ductility restricts the wide use of Mg as practical components 3. Recently, to avoid defect formation, much effort has been devoted to the processing of Mg and its alloys using plastic forming techniques 4 – 6.…”

Section: Introductionmentioning

confidence: 99%

Microstructural study of forged magnesium pipes at room temperature

Liu

Tan

et al. 2012

Materials Science and Technology

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We report the impact of room temperature forging on microstructure evolution and mechanical properties of hot extruded Mg pipes with a special focus on twinning behaviour and texture. The twinning is identified as an important deformation mechanism. The amount of twins are first increased with the increase in forging strain and then reduced remarkably, followed by a sudden increase until the saturation state. Different types of twins are identified, and the role they play in the deformation process is discussed. The basal planes are found to be rotated by a right angle from the extrusion direction during the room temperature forging. The Vickers hardness is increased drastically once imposing the room temperature forging, thereby demonstrating that this technique is effective in modifying microstructures and mechanical properties of metals.

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