Naslov
Analysis of the low energy layering fracture in Al- 2.5Mg-0.7Li alloy

Autori
Kozina, Franjo ; Zovko Brodarac, Zdenka ; Petrič, Mitja

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

Izvornik
Proceedings book of 17th International Foundrymen Conference / Dolić, Natalija ; Zovko Brodarac, Zdenka ; Begić Hadžipašić, Anita - Sisak : Metalurški fakultet Sveučilišta u Zagrebu, 2018, 144-160

ISBN
978-953-7082-30-7

Skup
17th International Foundrymen Conference: High- tech casting solution and knowledge based engineering

Mjesto i datum
Opatija, Hrvatska, 16.05.2018. - 18.05.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Al-Mg-Li alloy, phase precipitation, Li solubility, solidification sequence, low energy delamination fracture

Sažetak
The mechanism of nucleation and propagation of low energy layering fracture, observed during thermo-mechanical testing of Al-2.5Mg-0.7Li alloy in as cast condition, was analyzed. Since the low energy layering fracture is affected by Li segregations and microstructural constituents’ development, solidification sequence of Al-2.5Mg- 0.7Li alloy was investigated in equilibrium and non-equilibrium conditions. Results of the investigations have shown that Mg has more pronounced effect on low energy layering fracture due to reducing solubility of Li in liquid phase and αAl, maximizing precipitation of hardening (Al3Li) δ’ phase, ternary (Al2LiMg) T phase and (Al8Mg5) β phase, and reducing ductility by solid solution hardening.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA