Effect of aluminium on microstructure, mechanical property and texture evolution of dual phase Mg-8Li alloy in different processing conditions

Pugazhendhi, Bhagat Singh; Kar, Amlan; Kumaran, S.; Suwas, Satyam

doi:10.1016/j.acme.2018.04.001

Cited by 30 publications

(6 citation statements)

References 24 publications

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“…Figure 15 a–f are the IPF diagrams and orientation difference angle distribution diagrams of 1 mm, 0.5 mm, and 0.25 mm samples, respectively. It can be seen from Figure 15 a that the microstructure of the initial plate is composed of grains with different crystal orientations [ 33 ]. Consistently, Kumar et al [ 34 ] reported that EBSD measurements were only possible for the α phase, where the β phase of all the samples was not detected due to the oxide formation on its surface.…”

Section: Resultsmentioning

confidence: 99%

Microstructure Evolution Mechanism of Ultra-Thin Dual Phase Magnesium–Lithium Alloy during Asymmetric Warm Rolling

Shang²,

Chen

et al. 2022

Materials

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Magnesium–lithium alloy is the lightest metal alloy material so far, and the ultra-thin plate is also one of the main trends in the future development of Mg-Li alloy. In order to explore how to prepare LZ91 ultra-thin Mg-Li alloy, this topic adopts the combination of the finite element method (FEM) and visco-plastic self-consistent (VPSC) calculation, electron back-scattered diffraction (EBSD) and tensile experiment, and uses the asymmetric warm rolling process to realize the processing of ultra-thin LZ91 Mg-Li alloy plate with a thickness of 0.25 mm. The experimental results show that the maximum basal texture strengths of 1 mm initial plate and 0.25 mm ultra-thin rolled plate are 36.02 mud and 29.19 mud, respectively. The asymmetric warm rolling process not only reduces the basal texture strength but also significantly refines the grains. The tensile strength and yield strength of 0.25 mm ultra-thin rolled plate along the rolling direction reached 206.8 MPa and 138.4 MPa, respectively. This has a positive effect on the mechanical properties of subsequent materials. VPSC results show that the base slip is the main factor in Mg-Li alloy asymmetric warm rolling, and a large number of tensile twinning are initiated due to the coordinated deformation of the body-centered cubic (BCC) phase, which is beneficial to improve the plastic deformation capacity of Mg-Li alloy.

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Section: Resultsmentioning

confidence: 99%

Microstructure Evolution Mechanism of Ultra-Thin Dual Phase Magnesium–Lithium Alloy during Asymmetric Warm Rolling

Shang²,

Chen

et al. 2022

Materials

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“…Then the calculated amount of lithium pellets was added using charging port followed by continuous stirring at 300 rpm for 10 min. After that, the preheated (350 °C) graphene was added through charging port and stirred for about 30 min and then bottom poured into a cast iron mould [19,20]. The cylindrical rod ingot is machined using WEDM and cut into the dimension of 25 mm × 25 mm × 5 mm square sections.…”

Section: Methodsmentioning

confidence: 99%

Electrochemical corrosion behaviour of rolled dual phase Mg-8Li-graphene composite

Kavimani,

Vignesh,

Kumar

et al. 2023

Surf. Topogr.: Metrol. Prop.

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In this research, the effect of interrupted rolling on electrochemical corrosion behaviour of Mg-8Li-xGr composite is investigated. Graphene reinforced composite was developed by using stir casting route and rolled with different reductions in thickness of 50, 75 and 90%. Investigation on potentiodynamic polarization of rolled composite depicts that increase in reduction percentage increases the corrosion rate of the developed composite. Electrochemical impedance studies reveal that composite reduced at 50 % thickness exhibits higher charge transfer resistance of 80 cm2. Nyquist plot depicts occurrence of inductance loop that reveals occurrence of oxide layer breakage. Addition of graphene up to 0.4 wt. % increase the corrosion resistance and further addition exhibits adverse effect in corrosion behaviour due to the galvanic effects. The occurrence of pitting corrosion is evidenced from corrosion surface morphology.

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“…Thus, crystal structure change has been achieved by this deformation, and this change is in the form of martensite. In AlN steel, AIN particles pin the prior grain boundaries above the lower critical temp, hence hindering grain growth as resultant grain size is refined [22][23]. In AIN, steel phase transformation is observed to be slow compared to steel.…”

Section: Steel B (With Nanoparticles)mentioning

confidence: 99%

“…[3,14,16,17] these riddle and unrevealed features of AlN particles have been studied in the present research work. [3, [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Nano Particles Effect on Transformation Behavior and Mechanical Properties on Commercial Steel Used for Automobile Parts

2020

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A scientific study has been performed in this research work on the basis of experimental results and ramification to divulge the advancement of second phase particles and its influence on ferrite and austenite phase transformation in less carbon-manganese added steel. Two steels have been engaged in this competition with and without aluminum addition along with nitrogen. To fade out the already present particles, as received steel under investigation was solution heat treated at 1200°C and then both the steel samples were heat treated at 750°C and 810°C for 15, 20, 35, and 70 sec incubation time in the cyanide added liquid bath furnace and were rapidly cooled from elevated temperature at room temperature in ordinary water. Metallography was performed after etching technique in two etchant solutions microstructural features with advanced Olympus optical microscope with polarized light. To further enlarge the important microstructure SEM was used to capture the micrographs. It was concluded that aluminum combine with nitrogen stimulate the fine aluminum nitride (AlN) particles and these particles were the major source to hinder the grain boundary mobility and consequently phase transformation was interrupted in aluminum added steel and it lowers the critical temperatures. Surprisingly there was no such attitude was observed in without aluminum added steel.

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Effect of aluminium on microstructure, mechanical property and texture evolution of dual phase Mg-8Li alloy in different processing conditions

Cited by 30 publications

References 24 publications

Microstructure Evolution Mechanism of Ultra-Thin Dual Phase Magnesium–Lithium Alloy during Asymmetric Warm Rolling

Microstructure Evolution Mechanism of Ultra-Thin Dual Phase Magnesium–Lithium Alloy during Asymmetric Warm Rolling

Electrochemical corrosion behaviour of rolled dual phase Mg-8Li-graphene composite

Nano Particles Effect on Transformation Behavior and Mechanical Properties on Commercial Steel Used for Automobile Parts

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