P19 Influence of Frequency Ratio on Fatigue Life of High-Strength Aluminum Alloy under Two-step Loading

2005 ◽  
Vol 2005 (0) ◽  
pp. 461-462
Author(s):  
Sumito NAKASHIMA ◽  
Toru TAKASE ◽  
Atsuhiro KOYAMA
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Life ◽  
Frequency Ratio ◽  
High Strength ◽  
High Strength Aluminum Alloy ◽  
Step Loading

scholarly journals Mechanism of Fatigue Life Improvement due to Fine Particle Shot Peening in High Strength Aluminum Alloy

2010 ◽  
Vol 74 (6) ◽  
pp. 370-377 ◽  
Author(s):  
Akiko Inoue ◽  
Takahiro Sekigawa ◽  
Kazuyuki Oguri ◽  
Tetsuya Tagawa ◽  
Takashi Ishikawa
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Life ◽  
Shot Peening ◽  
Fine Particle ◽  
High Strength ◽  
High Strength Aluminum Alloy ◽  
Life Improvement

scholarly journals Improvement of Fatigue Property in High Strength Aluminum Alloy by Shot Peening

2012 ◽  
Vol 6 (1) ◽  
pp. 15
Author(s):  
Hussain J.Al-Alkawi ◽  
Mohammed J.Kadhim
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Life ◽  
Shot Peening ◽  
Endurance Limit ◽  
Fatigue Behavior ◽  
Fatigue Property ◽  
High Strength ◽  
High Strength Aluminum Alloy ◽  
Before And After ◽  
Cumulative Fatigue Damage

Shot peening process has both the beneficial and detrimentaleffects; therefore, it is difficult and time–consuming task to determine the optimized process parameters based on the fatiguelife. In this study the fatigue of 7001-T6 high strength aluminum alloy has been investigate before and after a shot peeningis beneficial for a treatment to investigate where a shot peening is beneficial for a component with this combination. The effect of 12 min. shot peening on the fatigue behavior of the material used gave an increase in the fatigue life of up to 2.49 times depending on the applied stress, and a 28.34% increase in the endurance limit of the material. Cumulative fatigue damage was conducted under low-high and high-low stress amplitude .The fatigue life prolonging factor (FLPF) was calculated for different stress amplitudes and it was found that this parameter is an indicator for prolonging the fatigue life.

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