Mechanical Characteristics of Cast Ac7av Alloy After Alternative Multi-Pass Friction Stir Processing

Park, Jae-Cheul; Kim, Seong-Jong

doi:10.1142/s0218625x10013837

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…Aluminum 5052 is widely used in industrial applications owing to its material properties of lower melting points [1], lightness [2], high fatigue strength [3], and corrosion resistance in maritime environments [4]. Among the machining operations, the drilling process of aluminum alloys is the most challenging [5] and the fatigue life of industrial components depends on the quality of drilled holes [6].…”

Section: Introductionmentioning

confidence: 99%

Study on the Measurement of Laser Drilling Depth by Combining Digital Image Relationship Measurement in Aluminum

2021

Materials

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In this study, laser processing equipment was used to drill aluminum alloy materials and with different auxiliary mechanisms, the deformation around the holes after processing was observed. The experimental results show that, due to the high temperature generated during laser processing, a large thermal gradient causes thermal stress to be introduced into the test piece and outward expansion deformation occurs. In this study, the digital image correlation and residual stress detection methods were applied. Based on the correlation between the drilled hole depth and the hole deformation, the hole depth of the laser processing was estimated. The average coefficient of determination for all auxiliary mechanisms is 0.82. The experimental results confirm that the digital image correlation method can be used to estimate the hole depth of laser processing.

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Section: Introductionmentioning

confidence: 99%

Study on the Measurement of Laser Drilling Depth by Combining Digital Image Relationship Measurement in Aluminum

2021

Materials

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“…Nowadays, aluminum alloys are in the spotlight in many industrial fields as an environmentfriendly material reducing the environment pollution. Aluminum alloys have such properties of low density, good thermal conductivity, high corrosion resistance and low melting points [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Increasing Salinity to Corrosion Resistance of 5052 Aluminum Alloy in Artificial Seawater

Darmawan

Siswanto

Purboputro

et al. 2019

MSF

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The purpose of this research is to investigate the corrosion resistance of 5052 aluminum alloy to increasing salinity in sea water. Salt spray chamber was used to measure and compare the corrosion rate of 5052 aluminum alloy with weight reduction method. The experiment was conducted by varying the three concentrations of NaCl solution to compare the corrosion rate of the metal. The test specimens used were aluminum alloy 5052 with length of 6 cm, width of 4 cm and thickness of 0.7 cm. The tests were carried out for 48 hours, aggressive NaCl solutions with concentrations of 3.5%, 4% and 5% were used as an artificial sea water corrosion medium and the temperature in the test chamber was maintained at 35 °C. Corrosion rate for 3.5% NaCl solution, 4% NaCl solution and 5% NaCl solution were 0.197 mm/year, 0.541 mm/year and 0.558 mm/year, respectively. The higher concentration leads to greater corrosion rate.

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“…To accommodate this demand, the use of light weight alloys, such as Al and Mg, is rapidly spreading. Assembling the alloys to manufacture various apparatus and structures require welding, but Al alloy welding [1][2][3] accompanies a lot of technological, economic and environmental problems. As a new alternative to solve these problems, commercialization and research on the friction stir welding [4][5][6][7][8] are undergoing [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Corrosion Behavior for Friction Stir Welded Al-1.1Mg-0.98Si Alloy with Annealing Time

Lee

Jeong

Kim

2013

AMR

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Recently, demand for environment protection and reduction of energy consumption has led to active development of technology to reduce the weight of transportation devices. Furthermore, due to the development of the ocean leisure industry, there is a increasing number of small shipbuilding including yacht using aluminum. However, there are a lot of problems to be solved in aluminum ship welding from the technological, economic and environmental perspectives. An alternative to solve these problems is the friction stir welding technique. But, inflow frictional heat is generated in case of friction stir welding of 6061-T6 alloy, and the crystalline structure grows, resulting in weak mechanical strength. Accordingly, this study is to improve the mechanical characteristics and corrosion resistance of FSWed 6061-T6 alloy through annealing heat treatment. This study compared the characteristics with time of heat treatment at a constant temperature for the annealing heat treatment. Results of electrochemical experiments, the stir zone in annealing time 60min. showed the low corrosion current density. Micro-Vickers hardness in 60min. presents the higher value than the other conditions.

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Mechanical Characteristics of Cast Ac7av Alloy After Alternative Multi-Pass Friction Stir Processing

Cited by 5 publications

References 3 publications

Study on the Measurement of Laser Drilling Depth by Combining Digital Image Relationship Measurement in Aluminum

Study on the Measurement of Laser Drilling Depth by Combining Digital Image Relationship Measurement in Aluminum

Effect of Increasing Salinity to Corrosion Resistance of 5052 Aluminum Alloy in Artificial Seawater

Electrochemical Corrosion Behavior for Friction Stir Welded Al-1.1Mg-0.98Si Alloy with Annealing Time

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