AP08956794 – Study of physical and mechanical properties of damping alloys with nanostructured coating for critical parts of road transport

Objective of the project: The aim of the work is to develop new alloys with a nanostructured coating that have improved damping properties, the use of which will increase reliability, reduce generated noise and vibration.

Relevance: The damping properties of metal materials provide effective damping of vibrations in the metal structure, and this guarantees an increase in reliability, a decrease in sound radiation and vibration radiation. To obtain new alloys with enhanced damping properties, an analytical review of domestic and foreign experience in improving the properties of metallic materials will be carried out, physical modeling will be carried out, and mathematical statistics will also be applied.  Expected and achieved results:

Scientific adviser: Ph.D., Аssociate Professor, Burshukova Gulzia Adilbekovna

Results obtained: This study presents a comprehensive evaluation of the damping, acoustic, and vibration properties of iron-based alloys used in engineering applications. Widely used cast steels such as 30L, 40L, and 50L, operating under vibration and impact conditions, were investigated. In addition to standard materials, new damping alloys MBG-1, MBG-2, and MBG-3 with nanostructured coatings alloyed with chromium, nickel, and cerium were developed. It was found that a multilayer Ti-Al-N coating with a thickness of 30 nm increases strength by 12–13% and improves damping properties by up to 10%. The main mechanisms of vibration attenuation, including elastic twinning and magnetoelastic energy dissipation, were identified. The phenomenon of amplitude-dependent damping of sound emission was also observed and explained by dislocation damping and magnetomechanical effects. The obtained results demonstrate the high potential for practical implementation of the developed alloys in industrial production.

List of publications with links to them

1. Burshukova G., et al. Analysis of using damping alloys to improve vibration and strength characteristics in the automotive industry // Evergreen. – 2023. – P. 742–751. – URL: https://www.tj.kyushu-u.ac.jp/evergreen/contents/EG2023-10_2_content/pdf/p742-751.pdf
2. Study of vibration properties of ceramic-metal nanostructural tin-cu coatings with different copper content (7 and 14 at. %) on chromium-nickel-vanadium steels // News of the National Academy of Sciences of the Republic of Kazakhstan. Series of Geology and Technical Sciences. – 2021. – № 5. – P. 6–13. – URL: https://journals.nauka-nanrk.kz/geolog-technical/article/view/2149
3. Заявка на патент. Сплав с повышенными демпфирующими свойствами и с наноструктурным покрытием.