Paper Title :Laboratory Research on Effect of Friction Stir Processing | (FSP) On Aa-7020 Aluminum Alloy
Author :Atabak Rahimzadehilkhechi
Article Citation :Atabak Rahimzadehilkhechi ,
(2018 ) " Laboratory Research on Effect of Friction Stir Processing | (FSP) On Aa-7020 Aluminum Alloy " ,
International Journal of Advances in Science, Engineering and Technology(IJASEAT) ,
pp. 44-53,
Volume-6,Issue-1,Special Issue - 1
Abstract : Friction stir processing as a promising thermo mechanical approach aims on altering the microstructural and
mechanical properties of material in order to obtain the highest performance in terms of properties, cost and lead time. This
study addresses FSP of 7020 aluminum alloy. The effect of variation in the ratio of rotational and translational speeds (i.e.,
ω/f) is examined on mechanical properties and the microstructure of AA-7020 aluminum alloy. The value of ω/f is varied
from 22 rev/mm to 125 rev/mm. The results show that with increasing ω/f, the grain size decreases. When ω/f ranges from
22 to 28, average hardness, ultimate strength and yield strength increase from 75 HV to 103 HV, from 313- 364 MPa and
from 173 MPa to 208 MPa, respectively. However, for ω/f ranging from 28 to 125, a reduction has been noticed in these
properties. Regarding microstructure, it is found that the size of grain in the processed zone is small and the direction of
grain is random. Besides mechanical properties, observations regarding the effect of ω/f on surface quality are also made to
show that larger values of ω/f lead to poor surface texture.
Keywords- Stir Processing, Hardness, Impact, Quality, Microstructure, Tensile, AL7020
Type : Research paper
Published : Volume-6,Issue-1,Special Issue - 1
DOIONLINE NO - IJASEAT-IRAJ-DOIONLINE-11136
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Published on 2018-04-11 |
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