Unformatted text preview: Explain how it would be possible to alter the sample to obtain this new structure, or explain why it is not possible to do so. 4) A cylindrical specimen of cold-worked steel is measured to have a Brinell hardness of 240. (a) Estimate its ductility in percent elongation, and (b) if the specimen retains a uniform cross-section during deformation and its original cross-section radius was 10 mm, determine the radius it will have in the cold-worked condition. 5) A cylindrical rod of brass with original diameter of 10.2 mm is to be cold-worked by a drawing process, maintaining the cylindrical cross-section during the process. Final properties are required to be a yield strength of at least 380 MPa and a ductility of at least 15%EL, with a final diameter of 7.6 mm. Describe a process that could achieve these properties, giving specific conditions for each required step....
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This note was uploaded on 10/02/2011 for the course AERO 1234 at Virginia Tech.