On the ability of some cyclic plasticity models to predict the evolution of stored energy in a type 304L stainless steel submitted to high cycle fatigue

2008 ◽  
Vol 27 (2) ◽  
pp. 161-180 ◽  
Author(s):  
Ludovic Vincent
Keyword(s):  
Stainless Steel ◽  
High Cycle Fatigue ◽  
Cyclic Plasticity ◽  
304L Stainless Steel ◽  
Cycle Fatigue ◽  
Stored Energy

scholarly journals High Cycle Fatigue Performance of LPBF 304L Stainless Steel at Nominal and Optimized Parameters

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1591
Author(s):  
Mohammad Masud Parvez ◽  
Tan Pan ◽  
Yitao Chen ◽  
Sreekar Karnati ◽  
Joseph W. Newkirk ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Fatigue Strength ◽  
Impact Toughness ◽  
Process Parameters ◽  
High Cycle Fatigue ◽  
Minimum Energy ◽  
Fatigue Performance ◽  
304L Stainless Steel ◽  
Test Results ◽  
Cycle Fatigue

In additive manufacturing, the variation of the fabrication process parameters influences the mechanical properties of a material such as tensile strength, impact toughness, hardness, fatigue strength, and so forth, but fatigue testing of metals fabricated with all different sets of process parameters is a very expensive and time-consuming process. Therefore, the nominal process parameters by means of minimum energy input were first identified for a dense part and then the optimized process parameters were determined based on the tensile and impact toughness test results obtained for 304L stainless steel deposited in laser powder bed fusion (LPBF) process. Later, the high cycle fatigue performance was investigated for the material built with these two sets of parameters at horizontal, vertical, and inclined orientation. In this paper, displacement controlled fully reversed (R = −1) bending type fatigue tests at different levels of displacement amplitude were performed on Krouse type miniature specimens. The test results were compared and analyzed by applying the control signal monitoring (CSM) method. The analysis shows that specimen built-in horizontal direction for optimized parameters demonstrates the highest fatigue strength while the vertical specimen built with nominal parameters exhibits the lowest strength.

Effect of solution annealing on low cycle fatigue of 304L stainless steel

2021 ◽  
pp. 141807
Author(s):  
Miroslav Šmíd ◽  
Ivo Kuběna ◽  
Michal Jambor ◽  
Stanislava Fintová
Keyword(s):  
Stainless Steel ◽  
Low Cycle Fatigue ◽  
304L Stainless Steel ◽  
Cycle Fatigue ◽  
Solution Annealing

scholarly journals Effects of Laser Peening Treatment on High Cycle Fatigue and Crack Propagation Behaviors in Austenitic Stainless Steel

2010 ◽  
Vol 4 (1) ◽  
pp. 94-104 ◽  
Author(s):  
Kiyotaka MASAKI ◽  
Yasuo OCHI ◽  
Takashi MATSUMURA ◽  
Takaaki IKARASHI ◽  
Yuji SANO
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Crack Propagation ◽  
High Cycle Fatigue ◽  
Laser Peening ◽  
Cycle Fatigue

The Influence of Microstructure Heterogeneities on the Very High Cycle Fatigue Behavior of Duplex Stainless Steel

2016 ◽  
Vol 258 ◽  
pp. 255-258
Author(s):  
Ulrich Krupp ◽  
Marcus Söker ◽  
Tina Waurischk ◽  
Alexander Giertler ◽  
Benjamin Dönges ◽  
...  
Keyword(s):  
Fatigue Damage ◽  
High Cycle Fatigue ◽  
Fatigue Behavior ◽  
Ion Beam ◽  
Cyclic Plasticity ◽  
Cycle Fatigue ◽  
Heterogeneous Distribution ◽  
Very High Cycle Fatigue ◽  
Structural Applications ◽  
Very High

As being used for structural applications, where a high corrosion resistance is required, the fatigue behavior of duplex stainless steels (DSS) is governed by the partition of cyclic plasticity to the two phases, ferrite and austenite, respectively. Under very high cycle fatigue (VHCF) loading conditions, the heterogeneous distribution of crystallographic misorientations between neighboring grains and phases yields to a pronounced scatter in fatigue life, ranging from 1 million to 1 billion cycles for nearly the same stress amplitude. In addition, the relevant damage mechanisms depend strongly on the atmosphere. Stress corrosion cracking in NaCl-containing atmosphere causes a pronounced decrease in the VHCF life. By means of ultrasonic fatigue testing at 20kHz in combination with high resolution scanning electron microscopy, electron back-scattered diffraction (EBSD), focused ion beam milling (FIB) and synchrotron tomography, the microstructure heterogeneities were quantified and correlated with local fatigue damage. It has been shown that the fatigue process is rather complex, involving redistribution of residual stresses and three-dimensional barrier effects of the various interfaces. The application of a 2D/3D finite element model allows a qualitative prediction of the fatigue-damage process in DSS that is controlled by stochastic local microstructure arrangements.

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