Role of Friction Stir Processing Parameters on the Microstructure and Hardness of ZE41 Mg Alloy: A Taguchi Approach

2019 ◽  
Vol 8 (1) ◽  
pp. 20180145
Author(s):  
M. Venkataiah ◽  
T. Anup Kumar ◽  
K. Venkata Rao ◽  
S. Anand Kumar ◽  
B. Ratna Sunil
Author(s):  
Zhenzhen Yu ◽  
Zhili Feng ◽  
Hahn Choo ◽  
Sven Vogel

The effects of friction stir processing (FSP) parameters, i.e., rotation and travel rates of the processing tool, on the texture modification and ductility enhancement of an Mg alloy AZ31B were investigated. With the systematic change in processing parameters as a function of the Zener-Hollomon parameter, a transition of different crystallographic texture was observed through neutron diffraction measurement, which correlated well with the changes in deformation and recrystallization mechanism activated during the processing. The variation in the texture leads to dramatic changes in the strength and ductility in the stir zone of the processed Mg plate. A maximum of three-fold increase in the ductility was achieved in the Mg alloy through FSP when the Zener-Hollomon parameter exceeds 1012 s−1 which is associated with low rotation speed and high travel speed processing conditions.


2017 ◽  
Vol 4 (6) ◽  
pp. 6671-6677 ◽  
Author(s):  
V.V. Kondaiah ◽  
P. Pavanteja ◽  
P. Afzal Khan ◽  
S. Anannd Kumar ◽  
Ravikumar Dumpala ◽  
...  

2020 ◽  
Vol 57 (01) ◽  
pp. 27-31
Author(s):  
Siyu Sun ◽  
Peng Liu ◽  
Lanwen Chen ◽  
Meiqing Cao ◽  
Jiaying Hu ◽  
...  

2020 ◽  
Vol 1002 ◽  
pp. 140-150
Author(s):  
Ali H. Al-Helli ◽  
Ahmed R. Alhamaoy ◽  
Ayad Murad Takhakh

Friction Stir Processing (FSP) technology was wielded to output the Al7075/ Al2O3 surface composite. The effects parameters of processing method on particle distribution have been studied. The microstructure and mechanical characteristics of the samples were examined using the optical microscope, SEM and hardness examination. Acquired consequences, showed that Al2O3 particles were in a good interior distribution inside the basement. This technique produced excellent bonding between the surface composite and the base material. On other hand the surface hardness was increased about 25% as compared with the substrate. In addition, grain matrix refinement and enhanced particle distribution were obtained after each FSP pass. Also the dispersion of Al2O3 particles in the stirred area became more homogeneous and the average hardness improved by increasing the number of passes.


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