scholarly journals Ultrafine-Grained Surface Layer Formation of Aluminum Alloy 5083 by Friction Stir Processing

Procedia CIRP ◽  
2016 ◽  
Vol 45 ◽  
pp. 243-246 ◽  
Author(s):  
Reza Abdi Behnagh ◽  
Ninggang Shen ◽  
Masoud Abdollahi ◽  
Hongtao Ding
Keyword(s):  
Surface Layer ◽  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Layer Formation ◽  
Friction Stir ◽  
Aluminum Alloy 5083 ◽  
Ultrafine Grained ◽  
Surface Layer Formation

Microstructures and Mechanical Properties of Aluminum Coating Produced by Friction Stir Processing

2015 ◽  
Vol 1095 ◽  
pp. 612-615
Author(s):  
Ying Ze Fang ◽  
Xiao Ping Zhou ◽  
Feng Xu
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Aluminum Coating ◽  
Porous Coating ◽  
Micro Hardness ◽  
Hardness Testing ◽  
Friction Stir ◽  
Ultrafine Grained ◽  
Aluminum Alloy Surface

This Four passes processing to the thermal spray aluminum coating on the aluminum alloy surface,based on friction stir processing (FSP). Applications SEM, EDS and micro hardness testing to analysis the coatings that have been processed and haven't been processed. The results show that , after the friction stir processing,dense ultrafine grained aluminum with the sizes less than 200nm is obtain ,and replace original laminated and porous coating . Fusion utilizes between the coating and the substrate, the gap between coating and substrate have disappear. The alloy elements in the substrate diffuse to the coating.

Friction Stir Processing of Aluminum Alloy 5083 Plate for Cold Bending

2003 ◽  
Vol 426-432 ◽  
pp. 2979-2986 ◽  
Author(s):  
Suhas P. Vaze ◽  
Junde Xu ◽  
Robert J. Ritter ◽  
Kevin J. Colligan ◽  
James J. Fisher Jr. ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Friction Stir ◽  
Aluminum Alloy 5083 ◽  
Cold Bending

ULTRAFINE GRAINED 6082 ALUMINUM ALLOY FABRICATED BY FRICTION STIR PROCESSING

2008 ◽  
Vol 22 (18n19) ◽  
pp. 2874-2878 ◽  
Author(s):  
A. SHAFIEI ZARGHANI ◽  
S. F. KASHANI BOZORG ◽  
A. ZAREI-HANZAKI
Keyword(s):  
Plastic Deformation ◽  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Grain Structure ◽  
Friction Stir ◽  
Microstructure Modification ◽  
State Process ◽  
Ultrafine Grained ◽  
6082 Aluminum Alloy ◽  
Metal Properties

Recently friction stir processing (FSP) has emerged as an effective tool for enhancing metal properties through microstructure modification. FSP is a solid-state process where the material within the processed zone undergoes intense plastic deformation resulting in dynamically recrystallized grain structure. This research demonstrates the use of FSP for creating ultrafine grained materials through severe plastic deformation. FSP was applied to extruded 6082-T4 aluminum alloy to produce ultrafine grained microstructure with grain sized from 0.5 to 3μm. The hardness of the FS processed 6082 aluminum alloy increased significantly with decreased tool rotation speed.

Investigation of in-vitro bacterial surface layer formation by FBARs

2009 ◽  
Author(s):  
Michael Mertig ◽  
Anja Bluher ◽  
Christiane Erler ◽  
Beate Katzschner ◽  
Wolfgang Pompe ◽  
...  
Keyword(s):  
Surface Layer ◽  
Layer Formation ◽  
Bacterial Surface ◽  
Surface Layer Formation

Fatigue crack paths and properties in A356-T6 aluminum alloy microstructurally modified by friction stir processing under different conditions

2015 ◽  
Author(s):  
A. Tajiri ◽  
Y. Uematsu ◽  
T. Kakiuchi ◽  
Y. Suzuki
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Crack ◽  
Crack Initiation ◽  
Friction Stir Processing ◽  
Casting Defects ◽  
Processing Conditions ◽  
Tool Rotational Speed ◽  
Crack Initiation And Propagation ◽  
Friction Stir ◽  
Initiation And Propagation

A356-T6 cast aluminum alloy is a light weight structural material, but fatigue crack initiates and propagates from a casting defect leading to final fracture. Thus it is important to eliminate casting defects. In this study, friction stir processing (FSP) was applied to A356-T6, in which rotating tool with probe and shoulder was plunged into the material and travels along the longitudinal direction to induce severe plastic deformation, resulting in the modification of microstructure. Two different processing conditions with low and high tool rotational speeds were tried and subsequently fully reversed fatigue tests were performed to investigate the effect of processing conditions on the crack initiation and propagation behavior. The fatigue strengths were successfully improved by both conditions due to the elimination of casting defects. But the lower tool rotational speed could further improve fatigue strength than the higher speed. EBSD analyses revealed that the higher tool rotational speed resulted in the severer texture having detrimental effects on fatigue crack initiation and propagation resistances.

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