Fig. 7

EBSD results: (a)–(d) inverse pole figure (IPF) map; (e)–(h) grain map with grain size less than 20 μm; (a) (e) SH1; (b) (f) SH3; (c) (g) SH5; (d) (h) SH7 (the figures were created using HKL CHANNEL 5 software. Version number: 2019v5.12; URL link: https://nano.oxinst.cn/products/ebsd/post-processing-software).