Hey all Researchers,
I am currently working on a sound reduction project and i need a high damping alloy to make a circular disc. can you tell me the resource to know which alloys are commercially available for these kind of applications?
Dear Aanand kumar Aa
Aluminium alloys have more damping capacity.
eg: Al-4 wt.% Cu (2017), Al-5 wt.% Zn-3 wt.% Mg-0.5 wt.% Cu (7022) and Al-0.9 wt.% Mg-1 wt.% Si (6082)
Dear Aanand,
Aluminum alloys of the 6000 or 6xxxx family or series (that is, Al-Mg-Si alloys) have been traditionally considered to show high damping capacity. You can easily find the commercial alloys 6061 and 6082. More recently, aluminum metal matrix composites (AMC) have drawn attention for damping applications, having matrix of aluminum alloy (again maybe 6061), with C, SiC and/or Al2O3 ceramic particles as reinforcement [1,2,3]. (Note: although ref. [2,3] are old, you may look for more recent references citing them)
Improvements in mechanical damping may lead to new potential applications (e.g., noise, vibration and flutter reduction) [3,4].
[1] J.I. Rojas, B.V. Siva, K.L. Sahoo, D. Crespo, Viscoelastic behavior of a novel aluminum metal matrix composite and comparison with pure aluminum, aluminum alloys, and a composite made of Al–Mg–Si alloy reinforced with SiC particles, J. Alloys Compd. 744 (2018) 445–452. doi:10.1016/j.jallcom.2018.02.103
[2] A. Wolfenden, J.M. Wolla, Mechanical damping and dynamic modulus measurements in alumina and Tungsten fiber-reinforced aluminum composites, J. Mater. Sci. 24 (1989) 3205–3212
[3] T. Das, S. Bandyopadhyay, S. Blairs, DSC and DMA studies of particulate-reinforced metal-matrix composites, J. Mater. Sci. 29 (1994) 5680–5688
[4] M.D. Rao, Recent applications of viscoelastic damping for noise control in automobiles and commercial airplanes, J. Sound Vib. 262 (2003) 457–474. doi:10.1016/S0022-460X(03)00106-8
[5] A.G. Cunha-Filho, A.M.G. de Lima, M. V. Donadon, L.S. Leão, Flutter suppression of plates using passive constrained viscoelastic layers, Mech. Syst. Signal Process. 79 (2016) 99–111. doi:10.1016/j.ymssp.2016.02.025
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