The growth restriction effect of TiCN nanoparticles on Al-Cu-Zr alloys via ultrasonic treatment.

ABSTRACT: Ex situ and in situ synchrotron X-radiography study on Al-Cu-Zr alloys with addition of Al-5Ti-1B and TiCN nanoparticles (TiCN_np) were carried out at different cooling rates. Al-Zr alloy can be effectively refined by TiCN_np via Ultrasonic treatment as compared with Al-5Ti-1B which has Zr poisoning effect. The influence of cooling rate on the nucleation and growth of grains have been studied quantitatively. The results show that the grain size was decreased and the growth rate was increased with the increasing of cooling rate. At the same cooling rate, the grain size with addition of 0.5% TiCN_np was smaller than that with the same addition of Al-5Ti-1B. The blocking factor f of TiCN_np decreases with increasing cooling rate. Based on the free growt

SUBMITTER: Jia Y 

PROVIDER: S-EPMC8605440 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature