期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2010.09.080
关键词
ECAP; CG; UFG; Mechanical properties; Endurance limit; Fatigue design factor
Equal channel angular pressing (ECAP) was successfully performed on commercial pure aluminum, aluminum 6061 alloy and commercial pure copper by route B-C. Tensile and fatigue (under constant stress) tests shows a significant enhancement in mechanical properties consisting of hardness, yield strength, ultimate tensile strength and endurance limit, but the ductility of the alloys reduced with employing this process. Two fatigue design factors K-l and K-h has been suggested to co-related fatigue data from coarse grained (CG) to ultra-fine grained (UFG) materials. (C) 2010 Elsevier B.V. All rights reserved.
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