Effect of Service Stress on Impact Resistance, X-ray Diffraction Patterns, and Microstructure of 25s Aluminum Alloy (1939)
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on, unstressed material in respect to the ±19,000 pounds per square inch for the requenched- amounts of slip-plane precipitation developed by equal and-aged alloy and for the as-received material, respec- aging treatments. Figure 28 (a) to 28 (f) show the tively. It is therefore evident that,… … Figure 26.—Slip-plane precipitation in the plastically deformed portion of a Moore Figure 27.—This surface has heen separated from the one shown in figure 26 by a rotating-beam fatigue specimen. The 25S specimen was broken by repeated stress longitudinal cut. The portion shown here was not aged at…
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