Internal damping of magnesium alloys

• Autorzy: Palček P. , Kasenčák M. , Chalupová M. , Bokůvka O.
• Konferencja: Terotechnologia 2009. Materiały Konferencji na ekspozycji METAL i CONTROL-TECH Targi-Kielce (29.09-01.10.2009 ; Kielce, Polska)
• Języki publikacji: EN

Abstrakty

EN

The paper deals with experimentally determined curves of AZ 31 magnesium alloys internal damping in dependence on temperature. The curves of damping are mutually compared: the initial state of the alloy (i.e. not heat treated alloy) and after heat treatment (homogenic annealing). In both cases the maxims of damping were recorded which are caused by relaxation process in material. It was found out that the values of damping of heat treated alloy are approximately 3 times higher than in the case of initial state. Elastic-plastic behaviour of AS41 magnesium alloy was investigated using the amplitude dependence at two chosen temperatures: T₁ – room temperature and T₂ – 250^oC.

Słowa kluczowe

EN

internal damping; magnesium alloys; heat treatment

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Zeszyty Naukowe Politechniki Świętokrzyskiej. Nauki Techniczne
• Rocznik: 2009
• Tom: Z. 13
• Strony: 346--353
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Palček P.

• University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitna 2, 01-026 Žilina, Slovakia

autor

Kasenčák M.

• University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitna 2, 01-026 Žilina, Slovakia

autor

Chalupová M.

• University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitna 2, 01-026 Žilina, Slovakia

autor

Bokůvka O.

• University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitna 2, 01-026 Žilina, Slovakia

Bibliografia

• 1. Duygulu O., Agnew S.R., The effect of temperature and strain rate on the tensile properties textured magnesium alloy AZ31B sheet: H Kaplan (Ed.),Magnesium Technology 2003 TMS, San Diego, CA, USA (2003), p. 237.
• 2. Zhang Z. - et.al.: The influence of heat treatment on damping response of AZ91D magnesium alloy, In: Material Science and Engineering, A392, 2005, pp. 150-155.
• 3. Puškár A.: Vnútorné tlmenie materiálov, EDIS Žilina, 1995.
• 4. Litva T., Šupík V.: Porovnanie teplotných závislostí vnútorného tlmenia v materiáloch s mriežkou K8 a H12, In: SEMDOK 2001, ŽU v Žiline, 2001.
• 5. Nishiyama K., et.al.: Damping properties of a sintered Mg - Cu - Mn alloy, In: Journal of Alloys and Compounds 355 (2003), p. 22.
• 6. Hu X. S., et.al.: Scripta Materialia 54, 2006, p. 1639.
• 7. Puškár, A.: Mikroplastickosť a porušenie kovových materiálov, VEDA, Bratislava, 1986.

Uwagi

EN

This resource has been supported by Science and Technology Assistance Agency under the contract No. APVV SK-CZ-0085-07 and by VEGA grant No 1/0249/.