Statistical Analysis of Dry Sliding Wear Process Parameters for AZ91 Alloy Processed by RD-ECAP Using Response Surface Methodology

Saleh, Bassiouny; Jiang, Jinghua; Xu, Qian; Fathi, Reham; Ma, Aibin; Li, Yuhua; Wang, Lisha

doi:10.1007/s12540-020-00624-w

Cited by 30 publications

(10 citation statements)

References 43 publications

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“…The ss-32p ES and ss-32p TS are mainly consisted of {011 ̅ 0} and {1 ̅ 21 ̅ 0} prismatic planes, whereas no apparent crystallographic orientation is observed in ss-32p NS. (2) In contrast with the as-cast counterpart, the discharge efficiencies of the ECAP-processed alloys and the homogenized one are significantly improved. The refined grains and dispersed precipitates can account for the higher utilization efficiency of the ECAPed samples by comparison with the as-cast one.…”

Section: Discussionmentioning

confidence: 99%

“…For a long time, magnesium and their alloys have been of great importance in the automotive, aerospace, electronics, and biomedical industries. [1][2][3] Besides, due to its high faradic power, high voltage, and lightweight cells, magnesium alloys are considered one of the most significant anodes for seawater batteries. Moreover, research conducted on magnesium alloys as anode materials for the seawater battery is attributed to its excellent discharge performance, that is, more negative electrode potential (i.e., −2.37 V [vs. saturated calomel electrode (SCE)]) and lower density (i.e., 1.74 g/cm 3 ) compared to aluminum and zinc, having a high theoretical specific capacity (i.e., 2.2 A•h/g) and, therefore, high specific energy density (i.e., 6.8 kW•h/kg).…”

Section: Introductionmentioning

confidence: 99%

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Effects of microstructure evolution on discharge properties of AZ31 alloy as anode for seawater battery

Xie

Jiang

et al. 2020

Materials & Corrosion

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In recent years, many researchers have been focusing on improving the discharge properties of AZ31 magnesium alloy for battery applications. In this paper, the equal‐channel angular pressing (ECAP) is used as a preferred way of refining the microstructure to enhance the discharge characteristics of AZ31 alloy as the anode for seawater batteries. The electrochemical discharge behaviors of ECAP‐processed AZ31 alloy are investigated along extrusion surfaces, normal cross‐sections, and transverse cross‐sections and compared with as‐cast and homogenized samples. On the basis of the findings, the anode efficiency is improved effectively through the ECAP method, with approximate isotropy in the discharge behaviors of refined AZ31 alloy. The enhanced discharge performance can be attributed to the refined grains, uniform grain sizes, and dispersed β‐Mg17Al12 after ECAP processing.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of microstructure evolution on discharge properties of AZ31 alloy as anode for seawater battery

Xie

Jiang

et al. 2020

Materials & Corrosion

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“…Furthermore, ECAP processing using an ECAP die with ϕ = 120° through two passes of route Bc displayed the highest TS, while 4-passes of route C using the 120°-die showed the best D% at fracture. Saleh et al [ 58 ] utilized RSM to optimize the wear resistance of AZ91during ECAP processing using a rotary ECAP die. The RSM findings revealed that the AZ91 wear resistance increased applied load, sliding time, and sliding speed.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the ECAP Parameters of Biodegradable Mg-Zn-Zr Alloy Based on Experimental, Mathematical Empirical, and Response Surface Methodology

et al. 2022

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Experimental investigations were conducted on Mg-3Zn-0.6Zr alloy under different ECAP conditions of number of passes, die angles, and processing route types, aimed at investigating the impact of the ECAP parameters on the microstructure evolution, corrosion behavior, and mechanical properties to reach optimum performance characteristics. To that end, the response surface methodology (RSM), analysis of variance, second-order regression models, genetic algorithm (GA), and a hybrid RSM-GA were utilized in the experimental study to determine the optimum ECAP processing parameters. All of the anticipated outcomes were within a very small margin of the actual experimental findings, indicating that the regression model was adequate and could be used to predict the optimization of ECAP parameters. According to the results of the experiments, route Bc is the most efficient method for refining grains. The electrochemical impedance spectroscopy results showed that the 4-passes of route Bc via the 120°-die exhibited higher corrosion resistance. Still, the potentiodynamic polarization results showed that the 4-passes of route Bc via the 90°-die demonstrated a better corrosion rate. Furthermore, the highest Vicker’s microhardness, yield strength, and tensile strength were also disclosed by four passes of route Bc, whereas the best ductility at fracture was demonstrated by two passes of route C.

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“…Also, they have verified the model adequacy by the confirmation tests. Bassiouny Saleh et al [28] studied the equal channel angular pressed AZ91 magnesium alloy for its wear characteristics. The sample specimen was pressed up to sixteen passes to achieve significant grain refinement.…”

Section: Introductionmentioning

confidence: 99%

Tensile and wear properties of repetitive corrugation and straightened Al 2024 alloy: an experimental and RSM approach

Manjunath¹,

Thirthaprasada²,

Chandrashekar³

et al. 2021

Mater. Res. Express

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Repetitive Corrugation and Straightening (RCS) on sheet geometries causes Cyclic Plastic Deformation, resulting in potential improvements of mechanical characteristics in metals and alloys. In this study, sample sheets of Al 2024 are subjected to severe plastic deformation with specially designed corrugated rollers to generate heterogeneous repeated plastic deformation at room temperature. The material shows enhanced properties under severe plastic deformation, with 5.07% increase in tensile strength, compared to unprocessed material. Maximum tensile strength was observed at annealed temperature of 150 °C is of about 3.49% increase in tensile strength over other temperature conditions. A wear study was carried out by considering the processed sheet that yields high tensile strength (annealed at 150 °C) by varying process parameters like sliding distance, load and sliding velocity as per design of experiments. In comparison to all other combinations, the wear resistance was shown to be better with a sliding distance of 6000 m, a load of 9.81 N, and a sliding velocity of 1.45 m s−1. The Response Surface Methodology (RSM) approach was adopted for comparing purpose, the experimental findings are found to be more similar to the RSM approach’s outcomes.

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Statistical Analysis of Dry Sliding Wear Process Parameters for AZ91 Alloy Processed by RD-ECAP Using Response Surface Methodology

Cited by 30 publications

References 43 publications

Effects of microstructure evolution on discharge properties of AZ31 alloy as anode for seawater battery

Effects of microstructure evolution on discharge properties of AZ31 alloy as anode for seawater battery

Optimizing the ECAP Parameters of Biodegradable Mg-Zn-Zr Alloy Based on Experimental, Mathematical Empirical, and Response Surface Methodology

Tensile and wear properties of repetitive corrugation and straightened Al 2024 alloy: an experimental and RSM approach

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