Thermal Stability of Cryomilled Al-Mg-Er Powders

Table 6

Volume fraction of nanoscale oxides and Zener limit grain size.

Composition	Oxygen content (wt.%)	Oxide volume fraction,	Grain size, (nm)	Grain size below (nm)
Milled Al alloys [13]	0.3–1.5	0.4–2.2	150	40
0.1 Er	8.4	12.7	27	37
0.5 Er	13	20.4	16	18