Weldability of High-tensile Steels from Experience in Airplane Construction, with Special Reference to Welding Crack Susceptibility
This is a 1935 technical report from the NASA Technical Reports Server, though the record names no specific author, on weldability and crack susceptibility of high-tensile steels as found in airplane construction. Its pictures are black-and-white photographs of welded steel tube, test specimens and clamping fixtures, plus a plotted graph of crack tendency against specimen width and micrographs of overheated steel grain. A designer could draw on their stark, documentary look: grey metal surfaces, precise mechanical hardware, and scientific diagrams with dotted data points.
