Naslov
Effect of abrasive grain size on the abrasion resistance of black locust (Robina pseudoacacia) in three characteristic sections

Autori
Jakopec, Sanja ; Damijanić, Darwin ; Kurtalj, Luka ; Lukšić, Helena ; Rede, Vera

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Procceding of Natural Resources, Green Technology & Sustainable Development/4 / Radojčić Redovniković, Ivana ; Jakovljević, Tamara ; Stojaković, Renata ; Erdec, Dina ; Panić, Manuela ; Damjanović, Anja ; Radošević, Kristina ; Cvjetko Bubalo, Marina - Zagreb : Prehrambeno-biotehnološki fakultet Sveučilišta u Zagrebu, 2022, 81-88

Skup
4th Natural resources, green technology and sustainable development/4 (GREEN2022)

Mjesto i datum
Zagreb, Hrvatska, 14.09.2022. - 16.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
black locust, abrasive grain size, abrasion resistance

Sažetak
Black locust (Robinia pseudoacacia L.) is a widespread hardwood tree originating from North America that can be found in all temperate regions. Its ability to grow in different soil types and develop a strong branched root system was the key to its naturalization in many European countries since it was brought to the continent in the 17th century. Alike all wood species, Black Locust has a hierarchically complex structure. Specific cells are used for mechanical strength (fibers) and for water transportation (vessels), combining micro and nano-sized elements. Anisotropy highly influences its properties. Microstructure and properties vary between three main wood sections: tangential, radial, and cross section. The aim of this article is to determine how the change of section affects abrasive wear resistance, and how the abrasive grain size affects abrasive volume loss. Samples from each section were exposed to abrasive wear on Taber abraser using different grain-sized paper. After examination, the mass loss was measured and recalculated into the volume loss to indicate differences between sections. The results showed that the orientation of the wood structure and the size of abrasive grains have a significant influence on the abrasion resistance. The highest abrasion resistance was observed in the cross section. The abrasion resistance of radial and tangential sections were similar and lower than abrasion resistance in cross section. On all tested samples, a phenomenon of critical abrasive grain size was observed. By increasing the size of the abrasive grains to a critical size, at the same time, the abrasive volume loss also increased. After the value of the critical size of the abrasive grain, the volume loss continues to increase, but at a lower rate.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA