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Quantification of grain boundary connectivity for predicting intergranular corrosion resistance in BFe10-1-1 copper–nickel alloy

  • Yinghui Zhang (a1), Xingyu Feng (a1), Chunmei Song (a1), Hang Wang (a2), Bin Yang (a2) and Zhigang Wang (a1)...

Abstract

We investigated the connectivity of high-energy random grain boundaries through fractal analyses of specimens with different grain boundary (GB) microstructures in BFe10-1-1 copper–nickel alloy. It was found that the profile of maximum random boundary network possesses a fractal nature and more than one fractal dimension can exist. The fraction of special boundaries and grain size homogeneity can play an important role on GB character distribution. Here, GB microstructures are combined with quantitative materials structure–property relationship models to predict intergranular corrosion properties. The experimental results are accurately consistent with the theoretical predictions.

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Corresponding author

Address all correspondence to Xingyu Feng at fxy_105831@163.com and Zhigang Wang at wzgang2008cn@163.com

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