An analysis of the shear zone for metals deformed by equal-channel angular processing

Four fundamental models, based on slip-line theory, are compared to experimental results obtained from deforming scribed billets in a single pass of equal-channel angular pressing (ECAP). Two ECAP die configurations, having sharp and round corners, are used to determine the experimental flow-line fi...

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Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 410; pp. 239 - 242
Main Authors Stoica, G.M., Fielden, D.E., McDaniels, R., Liu, Y., Huang, B., Liaw, P.K., Xu, C., Langdon, T.G.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 25.11.2005
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Summary:Four fundamental models, based on slip-line theory, are compared to experimental results obtained from deforming scribed billets in a single pass of equal-channel angular pressing (ECAP). Two ECAP die configurations, having sharp and round corners, are used to determine the experimental flow-line fields for Pb, pure Cu and pure Al billets. Two different types of deformation behavior are observed when using the die with a sharp-corner: (a) for the Cu and Al billets a gap develops at the outer corner of the die so that the material flows without filling the outer corner and (b) for Pb billets a “dead-metal” zone is formed which fills with material in the outer corner of the die. Strain mapping is used to delineate different spatial strain distributions for sharp-corner and round-corner dies.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2005.08.186