Corrosion Embrittlement of Duralumin II Accelerated Corrosion Tests and the Behavior of High-Strength Aluminum Alloys of Different Compositions
This is a 1928 NACA technical note, issued by the National Advisory Committee for Aeronautics as a report on corrosion embrittlement of duralumin and related high-strength aluminum alloys, written for aeronautical engineers and researchers. The four plates are bar charts of tensile strength and elongation for alloy variants, micrographs of corroded metal showing intergranular cracking, and a photograph of a laboratory apparatus for repeated immersion corrosion tests. A designer could take from them the stark, orderly grammar of engineering graphs and the fine, branching textures of metal under magnification.
