Ultrasound Wave Attenuation of Grain Refined High – Zinc Aluminium Sand-cast Alloys

Journal title

Archives of Foundry Engineering




No 2

Publication authors


High-Zinc Al alloy ; Sand casting ; Grain refinement ; Damping capacity ; Attenuation of ultrasound wave ; strength properties

Divisions of PAS

Nauki Techniczne


Archives of Foundry Engineering continues the publishing activity started by Foundry Commission of the Polish Academy of Sciences (PAN) in Katowice in 1978. The initiator of it was the first Chairman Professor Dr Eng. Wacław Sakwa – Corresponding Member of PAN, Honorary Doctor of Czestochowa University of Technology and Silesian University of Technology. This periodical first name was „Solidification of Metals and Alloys” , and made possible to publish the results of works achieved in the field of the Basic Problems Research Cooperation. The subject of publications was related to the title of the periodical and concerned widely understand problems of metals and alloys crystallization in a casting mold. In 1978-2000 the 44 issues have been published. Since 2001 the Foundry Commission has had patronage of the annually published “Archives of Foundry” and since 2007 quarterly published “Archives of Foundry Engineering”. Thematic scope includes scientific issues of foundry industry:

  • Theoretical Aspects of Casting Processes,
  • Innovative Foundry Technologies and Materials,
  • Foundry Processes Computer Aiding,
  • Mechanization, Automation and Robotics in Foundry,
  • Transport Systems in Foundry,
  • Castings Quality Management,
  • Environmental Protection.


The paper presents results of measuring attenuation coefficient of the Al-20 wt.% Zn alloy (AlZn20) inoculated with different grain

refiners. During experiments the melted alloys were doped with Al-Ti3-C0.15 refining master alloy. Basing on measurements performed

by Krautkramer USLT2000 device with 1MHz ultrasound wave frequency it was stated that grain refinement reduces the attenuation

coefficient by about 20-25%. However, the examined alloys can be still classified as the high-damping ones of attenuation greater than 150



The Katowice Branch of the Polish Academy of Sciences


2015[2015.01.01 AD - 2015.12.31 AD]


Artykuły / Articles


ISSN 2299-2944


Krajewski (2009), Structure and properties of grain - refined Al - wt Zn sand cast alloy Archives of Metallurgy and, Materials, 54, 20. ; Haberl (2010), Microstructural features of the grain - refined sand cast alloy AlZn of Metallurgy and, Archives Materials, 20, 837. ; Krajewski (2012), Damping properties vs structure fineness of the high - zinc aluminum alloys Archives of Foundry, Engineering, 12, 63.