scholarly journals Influence of surface recrystallization on the low cycle fatigue behaviour of a single crystal superalloy

2014 ◽  
Vol 38 (3) ◽  
pp. 340-351 ◽  
Author(s):  
X. Ma ◽  
H.-J. Shi ◽  
J. Gu ◽  
Z. Yang ◽  
G. Chen ◽  
...  
Keyword(s):  
Single Crystal ◽  
Low Cycle Fatigue ◽  
Fatigue Behaviour ◽  
Single Crystal Superalloy ◽  
Cycle Fatigue

scholarly journals Low-Cycle Fatigue Behaviour of a Ni-Based Single-Crystal Superalloy

2014 ◽  
Vol 891-892 ◽  
pp. 416-421 ◽  
Author(s):  
Mikael Segersäll ◽  
Johan Moverare ◽  
Daniel Leidermark ◽  
Kjell Simonsson
Keyword(s):  
Single Crystal ◽  
Low Cycle Fatigue ◽  
Strain Range ◽  
Cyclic Hardening ◽  
Fatigue Behaviour ◽  
Single Crystal Superalloy ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Stress Strain ◽  
Tension Compression Asymmetry

In this study, low-cycle fatigue (LCF) tests at 500 °C in the <001>, <011> and <111> directions have been performed for the Ni-based single-crystal superalloy MD2. All tests were carried out in strain control with Rε=-1. The <001> direction has the lowest stiffness of the three directions and also shows the best fatigue properties in this study followed by the <011> and <111> directions, respectively. It is well recognised that Ni-based single-crystal superalloys show a tension/compression asymmetry in yield strength and this study shows that a tension/compression asymmetry also is prevalent during LCF conditions. At mid-life, the <001> direction generally has a higher stress in tension than in compression, while the opposite is true for the <011> direction. For the <111> direction the asymmetry is found to be strain range dependent. The <011> and <111> directions show a cyclic hardening behaviour when comparing cyclic stress-strain curves with monotonic stress-strain curves. In addition, the <011> and <111> directions show a serrated yielding behaviour for a number of cycles while the yielding of the <001> direction is more stable.

Low Cycle Fatigue Behaviour of the Single Crystal Superalloy SC 16

Fatigue '96 ◽  
1996 ◽  
pp. 807-812
Author(s):  
W. Wedell ◽  
U. Chrzanowski ◽  
H. Frenz ◽  
J. Ziebs ◽  
H. Klingelhöffer
Keyword(s):  
Single Crystal ◽  
Low Cycle Fatigue ◽  
Fatigue Behaviour ◽  
Single Crystal Superalloy ◽  
Cycle Fatigue

Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900°C

2019 ◽  
Vol 35 (7) ◽  
pp. 767-774 ◽  
Author(s):  
Peng Li ◽  
Bomou Zhou ◽  
Yizhou Zhou ◽  
Zhefeng Zhang
Keyword(s):  
Single Crystal ◽  
Low Cycle Fatigue ◽  
Fatigue Behaviour ◽  
Cycle Fatigue
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