Comparison study of rust layers formed on Q420 and weathering steel after 6 years of exposure in marine atmospheresYunxiang Chen, Xiaojian Xia, Yao Huang, Yicheng Hong, Deyuan Lin and Yanjin LuMetall. Res. Technol., 119 1 (2022) 116DOI: https://doi.org/10.1051/metal/2022008