The Effects of Rolling Deformation and Annealing Treatment on Damping Capacity of 1200 Aluminium Alloy

Mazlee, Mohd Noor; Jamaludin, Shamsul Baharin; Yasmin, Y.; Shamsudin, Shaiful Rizam; Risby, M. S.; Afendi, M.

doi:10.4028/www.scientific.net/msf.819.20

Cited by 2 publications

(3 citation statements)

References 13 publications

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“…This is because of the existence of abnormal grain at certain temperature. When the alloy was annealed at a temperature close to the solvus line, it may produce abnormal grain growth [4].It have been reported that the grain boundary for high rolling reduction were difficult to slip at high temperature and cause the damping capacity decreases and also believe to be depending also on the annealing parameters used [5]. Above certain temperatures, dislocations would move faster and then break away dramatically from the weak pinning points.…”

Section: %mentioning

confidence: 99%

The Effects of Cold Rolling Process and Annealing Treatment on Damping Properties of 3105 Aluminium Alloy

Zakaria¹

2017

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Abstract. The aluminium alloy have deformed by cold rolling process to 50 percent, 60 percent, and 70 percent rolling reduction. In order to reduce the strain hardening of the samples, an annealing treatment was performed after cold worked process. The lower the rolling reduction, the higher the damping capacity of the samples. The sample for 50 percent rolling reduction before annealed has increase in damping capacity from 0.0361 to 0.1318. When the samples undergo two different annealing temperatures and soaking hours, the damping properties such as loss modulus, storage modulus, and damping capacity show some changes in trend curves and experimental value. The damping capacity for sample 50 percent rolling reduction and after annealed at temperature 300 °C for one hour was increased from 0.0193 to 0.1405 at temperature 50 °C to 380 °C. The hardness measurement showed that, the value of Vickers hardness were decrease after annealed due to the decreasing in strain hardening.

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Section: %mentioning

confidence: 99%

The Effects of Cold Rolling Process and Annealing Treatment on Damping Properties of 3105 Aluminium Alloy

Zakaria¹

2017

Preprint

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“…During the spot welding process, when the current was switched off, the melting metal solidified under the pressure of electrode force. In this process, stress hardening take places in the welding zone due to the rapid cooling of weld metal [8,12]. The fracture analysis of weld nugget between dissimilar metal have to be reconsider to observe the crack initiations that occur with the welding type.…”

Section: Tensile Shear Strengthmentioning

confidence: 99%

“…It can be concluded that the extension of welding time reduces the loss modulus of weld nugget. Loss modulus increased at final temperature when then reduction of dislocation energy occur and lead to the dissipation of energy in material easily [8].…”

Section: Dynamic Mechanical Propertiesmentioning

confidence: 99%

Tensile shear strength and dynamic mechanical analysis of 6063 aluminium alloy and 304 stainless steel by spot welding

SANUSI¹

2017

Preprint

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Mechanical properties of dissimilar metal of spot welding were tested and analyzed based on the variation in welding currents and welding times. From visual observation, the largest weld nugget recorded was 7.43 mm at 5 kA, meanwhile the smallest was 6.4 mm at 3 kA. It was found that weld nugget size increase with the increment of weld current and extension of weld time. Based on tensile result, the largest weld nugget size of 7.43 mm produced the highest tensile strength, 31.99 N/mm2 mean while the smallest weld nugget 6.4 mm produced 29.40 N/mm2. The results show that weld nugget size affect the tensile shear strength, and with the increment of weld current and extension of welding time, tensile shear strength increase. Dynamic mechanical properties defined the storage modulus, loss modulus and damping capacity of dissimilar metal spot welded. It was found that at 10 Hz frequency between 70°C to 350°C, with heating rate of 10°C/minute, the storage modulus increase with increment in weld current and the extension of weld time to 8 s. Meanwhile the loss modulus decrease with the increased of weld current and weld time. Same pattern happen to damping capacity, the value dropped with the increases of welding current and welding time.

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The Effects of Rolling Deformation and Annealing Treatment on Damping Capacity of 1200 Aluminium Alloy

Cited by 2 publications

References 13 publications

The Effects of Cold Rolling Process and Annealing Treatment on Damping Properties of 3105 Aluminium Alloy

The Effects of Cold Rolling Process and Annealing Treatment on Damping Properties of 3105 Aluminium Alloy

Tensile shear strength and dynamic mechanical analysis of 6063 aluminium alloy and 304 stainless steel by spot welding

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