TY - RPRT TI - Quantitative characterization of gradient microstructures: A study on friction stir spot processing of pure cobalt AU - Brown, Nathan [Washington State University, Pullman, WA (United States)] (ORCID:0009000580999161) AU - McBride, Michael [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000252747275) AU - Hooks, Daniel E. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000172536689) AU - Jensen, Brian J. [Washington State University, Pullman, WA (United States)] (ORCID:0000000165800701) AU - Field, David P. [Washington State University, Pullman, WA (United States)] (ORCID:0000000194150795) PY - 2026 DO - 10.1016/j.actamat.2026.122018 UR - https://www.osti.gov/biblio/3020307 ID - 3020307 ER -