Thermal Stability of Cryomilled Al-Mg-Er Powders

Table 4

XRD results and TEM grain size for the 0.1 Er annealed powders.

Powder sample	Lattice parameter (Å)	Mg in matrix (at.%)	Grain size, XRD (nm)	Microstrain (%)	Correlation coefficient,	Grain size, TEM (nm)	Number of grains,
Milled	4.0662 ± 0.0015	5.26	22	0.094	0.92	16 ± 1	592
150°C	4.0575 ± 0.0004	3.05	24	0.041	0.97	23 ± 1	325
180°C	4.0537 ± 0.0007	2.08	26	0.09	0.97	32 ± 3	313
250°C	4.0549 ± 0.0002	2.39	32	0.076	0.99	32 ± 3	318
330°C	4.0552 ± 0.0002	2.46	34	0.052	0.95	37 ± 4	665
500°C	4.0538 ± 0.0004	2.11	50	0.087	0.86	45 ± 5	390