| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1698521 | Procedia CIRP | 2016 | 4 Pages |
Abstract
Friction stir processing experiments are conducted on aluminum alloy 5083 plates to enhance the surface integrity by introducing an ultrafine-grained surface layer. Microstructural analyses are carried out using optical microscopy to characterize the grain structures under various conditions. Within the produced surface layer, equiaxed ultra-fine grains are observed due to dynamic recrystallized during FSP. The grain size is reduced from 40 μm to a submicron level for the FSP rotational speed of 800 rpm. The hardness is increased to a peak value of 151 HV, which is higher than that of the unprocessed area by 50%.
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Authors
Reza Abdi Behnagh, Ninggang Shen, Masoud Abdollahi, Hongtao Ding,