A new method to lightweight and improve strength to weight ratio of magnesium by creating a controlled defect

Reddy, M. Penchal; Krishnan, Anirudh Venkatraman; Manakari, Vyasaraj; Parande, Gururaj; Chua, Beng Wah; Wong, Stephen Chee Khuen; Lim, C.Y.H.; Gupta, Manoj

doi:10.1016/j.jmrt.2020.01.104

Cited by 20 publications

(20 citation statements)

References 22 publications

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“…Especially for the thermal decomposition of briquettes at 800°C, it was slow and still incomplete even when the time was extended > 120 minutes. It was inferred that the thermal decomposition at 800°C mainly proceeded as reaction [6], i.e., the first stage of dolomite decomposition, according to the results of Samtani et al [12] and Beruto et al [13] CaMg CO 3 ð…”

Section: Variation In the Thermal Decomposition Rate With Temperaturementioning

confidence: 89%

“…It was believed that the use of lightweight magnesium materials could reduce energy consumption and improve the environmental value of the product. [6] Magnesium and its alloy were considered green materials for the future. Actually, a whole magnesium industrial chain, from production of primary Mg to application of Mg alloy worldwide, was forming.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study of Magnesium (Mg) Production by an Integrated Calcination and Silicothermic Reduction Short Process

Liu

Zhong

et al. 2021

Metall Mater Trans B

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To promote the innovation of raw magnesium production technology, an integrated calcination and silicothermic reduction short process for magnesium production was experimentally studied on the laboratory scale in this article. The influences of the thermal decomposition temperature, silicothermic reduction temperature, pelletizing pressures and silicon ratio on the characteristics of producing the magnesium by the short process was studied. The crosslinking effect, including reactions between CO 2 decomposed from dolomite and metal elements in ferrosilicon, microstructure change at thermal decomposition and silicothermic reduction stages, was analyzed and discussed. In addition, comparison of the magnesium reduction rate and production efficiency between the new short process and the traditional Pidgeon process was made. The results indicated that the decomposition and reduction temperatures have a more significant influence on the magnesium reduction process than the pelletizing pressure and silicon ratio. A decomposition temperature < 1000°C and reduction temperature > 1100°C was proven to be favorable for improving the magnesium reduction rate and production efficiency of the new short process. It was also found that the integrated short process for magnesium production can reach the same total reduction rate and has lower efficiency compared to the traditional process. The decrease of magnesium production efficiency in the new short process was expected to result from reduction of the contact area and hindering of diffusion between CaOAEMgO molecules and Si(Fe) atoms because of the microstructure change and ferrosilicon consumption by the reactions between CO 2 and metal elements in ferrosilicon. Preparing briquettes with additives of binder or ultrafine particles of raw materials was proposed and considered for further study to improve the production efficiency.

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Section: Variation In the Thermal Decomposition Rate With Temperaturementioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Experimental Study of Magnesium (Mg) Production by an Integrated Calcination and Silicothermic Reduction Short Process

Liu

Zhong

et al. 2021

Metall Mater Trans B

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“…For a specimen with a vertical drill hole orientation, Matli et al [36] reported that a 1.5 mm diameter drill hole offered optimum material properties. Hence, to maintain a comparison, three different drill orientations (vertical, angular, and horizontal) were analysed in this study while maintaining a drill diameter of 1.5 mm.…”

Section: Simulation Parametersmentioning

confidence: 99%

“…Research into the impact of this drill/access hole on the strength of a component is surprisingly minimal in this regard, especially when it comes to light-weight materials and in the aerospace sector. Our earlier work [36] evaluated the effect of drill hole diameter in a vertical orientation on the strength to weight ratio of magnesium. It also detailed how the drill hole deforms under a compression load to give information on the size of sensors that can be placed inside.…”

Section: Introductionmentioning

confidence: 99%

Drill Hole Orientation: Its Role and Importance on the Compression Response of Pure Magnesium

et al. 2020

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Drilling is used in creating cylindrical through-holes for various applications. While optimizing drilling parameters is widespread, the effect of a drilled through-hole on the structural stability of components is not fully documented. The base material, along with other parameters, such as drill diameter, drill location and its orientation affect structural stability. Since carrying out tests on different base materials can be time consuming, simulation software can instead be used to provide valuable information. However, the comparison between experiments and simulations gets difficult; hence, this study attempts to provide a basis for effective comparison by studying simulations and compression tests, comparing the two, and documenting the role of drill hole orientation on the compressive response of magnesium, a material with immense potential in light-weight components. Simulations and experiments were carried out on three through-hole orientations and were compared to the undrilled scenario. Results demonstrate significant differences in compression behaviour. While the compressive yield strength increased in all three drill orientations, ultimate strength and ductility was reduced in horizontal and angular drill hole orientations. These observations, therefore, provide valuable insight into choosing the right orientation for different applications.

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“…Al and its alloys have been already optimized as the traditional aerospace materials and there are limitations in the further enhancement of their strength together with the reduction of weight and the component dimension. Although Mg alloys have high strength-to-weight ratios and other promising properties, their high surface reactivity is a significant challenge [62][63][64]. In aerospace applications, the coating of Mg with nickel has also been suggested.…”

Section: Application Of Mg and Its Alloysmentioning

confidence: 99%

Recent progress in materials used towards corrosion protection of Mg and its alloys

Ghazanfari

Hasanizadeh

Eskandarinezhad

et al. 2020

jcc

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A new method to lightweight and improve strength to weight ratio of magnesium by creating a controlled defect

Cited by 20 publications

References 22 publications

Experimental Study of Magnesium (Mg) Production by an Integrated Calcination and Silicothermic Reduction Short Process

Experimental Study of Magnesium (Mg) Production by an Integrated Calcination and Silicothermic Reduction Short Process

Drill Hole Orientation: Its Role and Importance on the Compression Response of Pure Magnesium

Recent progress in materials used towards corrosion protection of Mg and its alloys

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