Effects of Electro-Magnetic Stirring on Microstructural Evolution and Mechanical Properties in Semi-Solid Forming of a Hypo-Eutectic Al&ndash;Si&ndash;Cu&ndash;Ni&ndash;Mg Alloy

The microstructural evolution and mechanical properties of as cast AZ91 Mg alloy enduring different homogenization conditions were researched. The results show that the peak stress and plasticity obtain improvement with the increase of heat treated time and temperature until 693K. When the temperature is higher than 743K, the sample will occur the over-burned and directly lead to the decrease of mechanical properties. Otherwise, with the increase of heat treated time and temperatures, the second phase gradually precipitate from the solution, while the grain evolution is not obvious. In the compression process for the samples after heat treatment, some twins could be found in the grains.

Download Full-text

Effect of Electromagnetic Stirring on Morphology Evolution of Mg2Si in Hypereutectic Al-Si Alloy Composite

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.217-219.47 ◽

2012 ◽

Vol 217-219 ◽

pp. 47-50

Author(s):

Zheng Liu ◽

Hong Biao Xu ◽

Zhi Peng Zhou ◽

He Jun Xu

Keyword(s):

Mechanical Properties ◽

Isothermal Holding ◽

Electromagnetic Stirring ◽

Mg2si Particle ◽

Morphology Evolution ◽

Alloy Composite ◽

Magnetic Stirring ◽

Size And Morphology ◽

Electro Magnetic

Mg2Si reinforced hypereutectic Al-Si composite was prepared and the effects of electro- magnetic stirring on Mg2Si particle in the composite were researched. The results indicated that there were the important effects of electromagnetic stirring on size and morphology of the particle in the composite. The morphology and size of the particle in the composite were obviously improved by electromagnetic stirring. In comparison with the sample without isothermal holding, the size of the particle isothermally held slightly increased under the same stirring condition, but the roundness of the particle was improved. After isothermal holding, the mechanical properties of the composite prepared by electromagnetic stirring were improved to some extent.

Download Full-text

Microstructural evolution, mechanical properties, and corrosion resistance of a heat-treated Mg alloy for the bio-medical application

Journal of Magnesium and Alloys ◽

10.1016/j.jma.2018.11.002 ◽

2019 ◽

Vol 7 (1) ◽

pp. 80-89 ◽

Cited By ~ 18

Author(s):

Mohammad Janbozorgi ◽

Kimia Karimi Taheri ◽

Ali Karimi Taheri

Keyword(s):

Mechanical Properties ◽

Corrosion Resistance ◽

Microstructural Evolution ◽

Medical Application ◽

Mg Alloy ◽

Heat Treated ◽

Mechanical Properties And Corrosion

Download Full-text

Effects of semi-solid treatment by electro-magnetic induction on micro-structure evolution and mechanical properties of the Mg-2.4Y-4Nd-0.5Zr-1Ni alloys

Materials Research Express ◽

10.1088/2053-1591/ab8c73 ◽

2020 ◽

Vol 7 (5) ◽

pp. 056506

Author(s):

Hongtao Zhang ◽

Lingling Fan ◽

Mingyang Zhou ◽

Yuwenxi Zhang ◽

Tianhui Lu ◽

...

Keyword(s):

Mechanical Properties ◽

Magnetic Induction ◽

Structure Evolution ◽

Micro Structure ◽

Electro Magnetic ◽

Semi Solid

Download Full-text

The MSCP Process for Semi-Solid Slurry Production

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.116-117.362 ◽

2006 ◽

Vol 116-117 ◽

pp. 362-365 ◽

Cited By ~ 1

Author(s):

Zhan Feng Tian ◽

Zhi Feng Zhang ◽

Jun Xu ◽

Li Kai Shi

Keyword(s):

Continuous Production ◽

Electromagnetic Stirring ◽

Preparation Process ◽

High Quality ◽

Magnetic Stirring ◽

Continuous Preparation ◽

The Common ◽

Feedstock Production ◽

Electro Magnetic ◽

Semi Solid

Production of semi-solid slurry with fine and uniform microstructures is one of the basic and key problems for the industrial application of semi-solid processing. The common disadvantages of existing techniques are as follows: continuous production difficulty, high process controlling requirement and low quality microstructure. In order to overcome those problems, the MSCP (Multielectromagnetic Stirring Continuous Preparation) process has been developed by GRINM. Experimental results show that annular chamber for feedstock production can improve the efficiency of electromagnetic stirring and reduce the difficulty of temperature grad control. Compared with single electromagnetic stirring, multi- electro magnetic stirring can achieve more uniform stirring. Strict temperature grad control in annular chamber is the key of continuous preparation of high quality semi-solid slurry. Semi-solid slurry of different solid fractions was obtained by MSCP.

Download Full-text