Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 354, Issue 1-2, Pages 298-305Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0921-5093(03)00008-X
Keywords
friction stir welding; equal channel angular pressing; aluminium alloys; ultrafine-grained microstructure; Hall-Petch relationship
Ask authors/readers for more resources
The effect of grain size on hardness in the stir zones of friction stir (FS) welds of equal channel angular (ECA)-pressed Al alloys 1050 and 5083 was examined. The hardness was found to be essentially related to grain size through the Hall-Petch relationship in the stir zone of Al alloy 1050. The k(H) slope of the Hall-Petch equation for the stir zone of Al alloy 1050 was different from the previously reported ones, which was attributed to dynamic recrystallisation during friction stir welding (FSW). On the other hand, the relationship between hardness and grain size in the stir zone of Al alloy 5083 was expressed by the Hall-Petch equation with a change in slope. The change in slope was attributed to the homogeneous distribution of many fine particles. (C) 2003 Elsevier Science B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available