Dispersoids in Al-Mg-Si Alloy AA 6086 Modified by Sc and Y

11Citations
Citations of this article
10Readers
Mendeley users who have this article in their library.

Abstract

The aluminium alloy AA 6086 attains the highest room temperature strength among Al-Mg-Si alloys. This work studies the effect of Sc and Y on the formation of dispersoids in this alloy, especially L12-type ones, which can increase its high-temperature strength. A comprehensive investigation was carried out using light microscopy (LM), scanning (SEM), and transmission (TEM) electron microscopy, energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and dilatometry to obtain the information regarding the mechanisms and kinetics of dispersoid formation, particularly during isothermal treatments. Sc and Y caused the formation of L12 dispersoids during heating to homogenization temperature and homogenization of the alloys, and during isothermal heat treatments of the as-cast alloys (T5 temper). The highest hardness of Sc and (Sc + Y) modified alloys was attained by heat-treating alloys in the as-cast state in the temperature range between 350 °C and 450 °C (via T5 temper).

Cite

CITATION STYLE

APA

Zupanič, F., Žist, S., Albu, M., Letofsky-Papst, I., Burja, J., Vončina, M., & Bončina, T. (2023). Dispersoids in Al-Mg-Si Alloy AA 6086 Modified by Sc and Y. Materials, 16(8). https://doi.org/10.3390/ma16082949

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free