Corrosion mechanism of carbon brick in the blast furnace hearth by potassiumKe-xin Jiao, Jian-liang Zhang, Zheng-jian Liu, Zhuang-zhuang Liu, Yong Deng and Xiaoyue FanMetall. Res. Technol., 115 1 (2018) 109DOI: https://doi.org/10.1051/metal/2017060