Fig. 1

The microstructure of (a1-a2) Q, (b1-b2) QT, and (c1-c2) QLT samples, where a1, b1 and c1 are SEM micrographs, a2, b2, and c2 are TEM micrographs, respectively.

The microstructure of (a1-a2) Q, (b1-b2) QT, and (c1-c2) QLT samples, where a1, b1 and c1 are SEM micrographs, a2, b2, and c2 are TEM micrographs, respectively.