RELATION BETWEEN ELECTROCHEMICAL REACTIVITY AND STRUCTURE OF GRAIN BOUNDARIES CORRELATED TO INTERGRANULAR SULFUR SEGREGATION IN ULTRA PURE NICKEL L. Beaunier, C. Vignaud, D. Bouchet, C. Colliex et P. TrebbiaJ. Phys. Colloques, 46 C4 (1985) C4-505-C4-515DOI: https://doi.org/10.1051/jphyscol:1985456