Figure 1

(A) FE-SEM images of the surface (a–f) and cross section (g–k) of specimens after A, AM, AMH6, AMH12, AMH24 and AMH48 treatments; EDS-line analysis on the cross section after (B) MAO coating and (C) MAO coating + hydrothermal treatment.

(A) FE-SEM images of the surface (a–f) and cross section (g–k) of specimens after A, AM, AMH6, AMH12, AMH24 and AMH48 treatments; EDS-line analysis on the cross section after (B) MAO coating and (C) MAO coating + hydrothermal treatment.