Effect of Weld Currents on Microstructure, Corrosion Behavior of AZ31 Magnesium Alloy

Demir, Bilge; Koç, Erkan; Saud, A. N.

doi:10.1007/s40735-021-00489-5

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…Mg alloys have many advantages, such as high stiffness, good damping ability, superior biocompatibility, recyclability, machinability and huge hydrogen storage capacity [5][6][7][8]. Nevertheless, the widespread use of Mg alloys is limited due to their poor formability, low corrosion resistance and poor wear properties [9][10][11][12]. It is well known that the friction response of systems in contact with sliding parts is of great importance regarding energy efficiency and service life [9].…”

Section: Introductionmentioning

confidence: 99%

Tribological aspects of magnesium matrix composites: A review of recent experimental studies

Aydın

2023

Tribology - Materials, Surfaces & Interfaces

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The demand for magnesium (Mg) alloys is increasing in many industries, such as automotive and aerospace, thanks to their low density and high specific strength. However, the poor tribological performance of Mg alloys is one of the most important disadvantages that limit their widespread use. Researchers have developed different approaches to improve the wear performance of Mg alloys, such as alloying, coatings, surface modifications and composite production. Wear performance of systems with sliding parts are crucial for a lifetime and energy efficiency. The development of Mg matrix composites can significantly reduce energy loss by reducing damage from friction and wear. For this reason, it is crucial to understand the wear behaviour of recent Mg matrix composites. The effect of different parameters such as load, sliding speed, reinforcement content, reinforcement type and temperature on the wear performance of Mg matrix composites were investigated.

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Section: Introductionmentioning

confidence: 99%

Tribological aspects of magnesium matrix composites: A review of recent experimental studies

Aydın

2023

Tribology - Materials, Surfaces & Interfaces

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“…AHSS is mostly joined with the RSW method, which has many advantages [3][4]. For this reason, academic and industrial research focuses on it [5][6][7][8]. In addition, many materials have been successfully welded and studied in detail on RSW so far [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

An Optimization Study on Resistance Spot Welding of DP600 Sheet Steel via Experiment and Statistical Analysis

Alzahougi¹,

Demir²,

Elitaş³

2023

Eng. Technol. Appl. Sci. Res.

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Resistance Spot Welding (RSW) is widely used in many automotive, boiler, and ship manufacturing industries. Therefore, the optimization and effectiveness of the RSW process are very useful and cost-efficient processes in addition to improving weld quality. This study used various welding parameters to investigate the optimization of the RSW process of Advanced High Strength Steel (AHSS). RSW was carried out using different welding times, currents, and electrode pressure values. Microstructural analysis, nugget formation, and tensile shear test were performed on samples. This study applied the Taguchi method and ANOVA to set up the welding process and optimize its results. Microstructural characterization showed that the weld nugget microstructures had a high-volume fraction of martensite. Using the Minitab software, Taguchi (DOE) and ANOVA on the tensile shear test results showed that welding current is more effective than clamping pressure on the tensile shear load-bearing capacity (TLBC). However, clamping pressure affects the weld current effects on weld performance. Additionally, the TLBC of RSW samples increases, whereas increasing the clamping pressure leads to a decrease in TLBC and nugget dimensions. Consequently, a detailed analysis of the RSW coefficients and their effects led to optimized results.

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An investigation on bending fatigue in a corrosive environment of dual-phase 1000 sheet steel RSW joints and damage model via experiment and numeric analysis

Göktaş,

Demir,

Elitas

2024

Proceedings of the Institution of Mechanical Engineers, Part E:

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Fatigue, corrosion, and fatigue damage models are best addressed to improve and understand the service performance of materials, particularly automotive steel. This study is an attempt to experimentally and finite element investigates plain bending fatigue performance and damage model of DP 1000 sheet steel resistance spot welding (RSW) joints in 3% NaCl aqueous corrosive treatment. RSW applications were carried out using different weld currents. The joint samples were then subjected to optical image analysis, tensile shear, and fatigue tests (3% NaCl-aqueous and normal atmosphere). A proper damage model of RSW junctions was developed and corrected by numeric analysis. Besides, RSW nugget formation, tensile shear, and plain bending fatigue tests were also applied. Consequence, fatigue behavior, tensile load carrying capacity, and effective fracture behavior of resistance spot welded joint specimens were evaluated. Results showed that a corrosive environment negatively affected fatigue performance. With the developed model, it was observed that the fatigue life of the samples decreased by 30–35% in the fatigue tests performed in the corrosive environment. Experimental and numerical analysis results of plain bending were compatible.

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Effect of Weld Currents on Microstructure, Corrosion Behavior of AZ31 Magnesium Alloy

Cited by 3 publications

References 14 publications

Tribological aspects of magnesium matrix composites: A review of recent experimental studies

Tribological aspects of magnesium matrix composites: A review of recent experimental studies

An Optimization Study on Resistance Spot Welding of DP600 Sheet Steel via Experiment and Statistical Analysis

An investigation on bending fatigue in a corrosive environment of dual-phase 1000 sheet steel RSW joints and damage model via experiment and numeric analysis

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