OS1520 Effects of Roller Burnishing and Friction Stir Processing on Fatigue Properties in a Cast Aluminum Alloy

2013 ◽  
Vol 2013 (0) ◽  
pp. _OS1520-1_-_OS1520-3_
Author(s):  
Hiroaki MASUDA ◽  
Yuki NAKAMURA ◽  
Masaki NAKAJIMA ◽  
Toshifumi KAKIUCHI ◽  
Yoshihiko UEMATSU
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Fatigue Properties ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum ◽  
Friction Stir ◽  
Roller Burnishing

Improvement of Fatigue Properties in a Cast Aluminum Alloy by Roller Burnishing and Friction Stir Processing

2014 ◽  
Vol 891-892 ◽  
pp. 662-667 ◽  
Author(s):  
Yuki Nakamura ◽  
Masaki Nakajima ◽  
Hiroaki Masuda ◽  
Toshifumi Kakiuchi ◽  
Yoshihiko Uematsu
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Compressive Residual Stress ◽  
Fatigue Tests ◽  
Fatigue Properties ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum ◽  
Bending Fatigue ◽  
Friction Stir

Roller burnishing (RB) and friction stir processing (FSP) were applied to a cast aluminum alloy, AC4CH-T6 (equivalent to A356-T6), to improve the fatigue properties. In roller burnished specimens, Vickers hardness was increased until the depth of 60μm compared with that of the as-cast specimens, resulting in work-hardening by RB. The compressive residual stress on the surface of the roller burnished specimens was also increased from 35MPa to 132MPa. In order to investigate the effect of RB on the fatigue properties, rotary bending fatigue tests have been performed using the roller burnished and the as-cast specimens. The roller burnished specimens exhibited higher fatigue strength than the untreated specimens. It is due to the increase in hardness and compressive residual stress by RB. In addition, plane bending fatigue tests have been performed using the friction stir processed and untreated specimens. Fatigue strengths of the friction stir processed specimens were highly improved compared with untreated specimens as the results of the elimination of casting defects by FSP. However, the crack growth rates of the friction stir processed specimens were faster than those of untreated specimens. It is due to the softening of the material by heat input during the FSP.

Analysis of first mode metal transfer in A413 cast aluminum alloy during friction stir processing

2010 ◽  
Vol 64 (3) ◽  
pp. 301-304 ◽  
Author(s):  
L. Karthikeyan ◽  
V.S. Senthilkumar ◽  
V. Balasubramanian ◽  
S. Arul
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Metal Transfer ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum ◽  
Friction Stir

Effect of friction stir processing conditions on fatigue behavior and texture development in A356-T6 cast aluminum alloy

2015 ◽  
Vol 80 ◽  
pp. 192-202 ◽  
Author(s):  
Akiko Tajiri ◽  
Yoshihiko Uematsu ◽  
Toshifumi Kakiuchi ◽  
Yasunari Tozaki ◽  
Yosuke Suzuki ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Fatigue Behavior ◽  
Texture Development ◽  
Cast Aluminum Alloy ◽  
Processing Conditions ◽  
Cast Aluminum ◽  
Friction Stir

scholarly journals Friction Stir Processing Regularities of Cast Aluminum Alloy AlSi12

2021 ◽  
Vol 1989 (1) ◽  
pp. 012030
Author(s):  
D V Indoitu ◽  
A V Gusarova ◽  
A P Zykova ◽  
T A Kalashnikova ◽  
A V Chumaevskii ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum ◽  
Friction Stir

Fatigue Behavior of A356 Cast Aluminum Alloy Microstructurally Modified by Friction Stir Processing under Low Strain Rate Condition

2012 ◽  
Vol 525-526 ◽  
pp. 169-172
Author(s):  
Toshifumi Kakiuchi ◽  
Yoshihiko Uematsu ◽  
Yasunari Tozaki
Keyword(s):  
Aluminum Alloy ◽  
Strain Rate ◽  
Friction Stir Processing ◽  
Fatigue Behavior ◽  
Fatigue Tests ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum ◽  
Rate Condition ◽  
Friction Stir ◽  
Strain Rate Condition

The fatigue behavior of cast aluminum alloy, A356-T6, microstructurally modified by the friction stir processing (FSP) was investigated. The FSP conditions were set to be the tool rotational speed of 500 rpm and traveling speed of 200 mm/min, in which the strain rate was relatively low. Plane bending fatigue tests have been performed using the as-cast and friction stir processed (FSPed) specimens. Fatigue strengths in the finite life region and the fatigue limit of the FSPed specimens were highly improved compared with the as-cast ones resulting from the elimination of casting defects by the FSP. However, the crack growth rates of the FSPed specimens were faster than those of the as-cast ones due to the softening of the material by heat input during the FSP. The effects of FSP with low stain rate were discussed based on the microstructural consideration.

scholarly journals Effect of Process Variables on Microstructure of Cast Aluminum Alloy A356 during the Friction Stir Processing

2018 ◽  
Vol V6 (02) ◽  
Author(s):  
S Saranraj ◽  
N. Balamurugan ◽  
S. Rohenth ◽  
L. Karthikeyan ◽  
V. S. Senthilkumar ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum ◽  
Process Variables ◽  
Friction Stir
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