n(n=1,2,3) boundaries and the connectivity of random boundary networks were characterized by electron back-scatter diffraction (EBSD). The results showed that the Σ3 boundary fraction is hardly increasing during annealing time. Instead, the fractions of Σ9 and Σ27 boundaries have a dramatic change with annealing times, whose peaks are arisen at annealed 15min. Meanwhile, the corresponding connectivity of random boundary network is effectively disrupted. This can be attributed to the incoherent Σ3 boundary producing more Σ9 and Σ27 boundaries and incorporating those boundaries into the random boundary networks. Actually, the connectivity of random boundary networks can be definitely identified by Σ(9+27)/Σ3 radio."/>
The State key laboratory of rolling and automation,Northeastern University,The State key laboratory of rolling and automation,Northeastern University,Beijing General Research Institute for Nonferrous Metals,Beijing General Research Institute for Nonferrous Metals
[ZHANG Xiaoyu, ZHAO Xianming, LI Defu, GUO Shengli. The relationships between the Σ9 and Σ27boundaies and the connectivity of random boundary in Hastelloy C-276[J]. Rare Metal Materials and Engineering,2018,47(8):2318~2321.]
DOI:[doi]