On the Dynamic Strain Aging Effects during Elevated Temperature Ratcheting of Type 316LN Stainless Steel

2013 ◽  
Vol 32 (5) ◽  
pp. 475-484 ◽  
Author(s):  
Aritra Sarkar ◽  
A. Nagesha ◽  
R. Sandhya ◽  
M.D. Mathew
Keyword(s):  
Stainless Steel ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Stress Amplitude ◽  
Dynamic Strain ◽  
Mean Stress ◽  
Aging Effects ◽  
316Ln Stainless Steel ◽  
Intermediate Temperature Range ◽  
Type 316Ln Stainless Steel

AbstractRatcheting experiments were carried out on type 316LN stainless steel (SS) at different temperatures in the range, 300–923 K using different mean stress (σm) – stress amplitude (σa) combinations. Occurrence of dynamic strain aging (DSA) in the intermediate temperature range led to an anomalous temperature dependence of ratcheting strain accumulation. While the peak DSA temperature was found to be 823 K for all mean stress-stress amplitude combinations, the temperature regime of occurrence of DSA was found to depend on the σm–σa combinations used.

Implications of dynamic strain aging under LCF-HCF interactions in a type 316LN stainless steel

2017 ◽  
Vol 708 ◽  
pp. 91-103 ◽  
Author(s):  
Aritra Sarkar ◽  
A. Nagesha ◽  
P. Parameswaran ◽  
R. Sandhya ◽  
M. Okazaki
Keyword(s):  
Stainless Steel ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Dynamic Strain ◽  
316Ln Stainless Steel ◽  
Type 316Ln Stainless Steel

Generation of Constant Life Diagram under Elevated Temperature Ratcheting of 316LN Stainless Steel

2016 ◽  
Vol 35 (4) ◽  
pp. 361-368 ◽  
Author(s):  
Aritra Sarkar ◽  
A. Nagesha ◽  
R. Sandhya ◽  
M.D. Mathew
Keyword(s):  
Stainless Steel ◽  
Elevated Temperature ◽  
Strain Aging ◽  
Strong Influence ◽  
Stress Amplitude ◽  
Safe Zone ◽  
Dynamic Strain ◽  
Mean Stress ◽  
Cyclic Life ◽  
Plastic Domain

AbstractCombined influence of mean stress and stress amplitude on the cyclic life under elevated temperature (823–923 K) ratcheting of 316LN austenitic stainless steel is discussed. Constant life Haigh diagrams have been generated, using different combinations of stress amplitude and mean stress. In the plastic domain, the allowable stress was found to increase or decrease with mean stress depending on the temperature and combination of mean stress – stress amplitude employed. Strong influence of dynamic strain aging (DSA) was found at 823 K which affected the mode of deformation of the material in comparison with 923 K. Failure mode expressed through a fracture mechanism map was found to change from fatigue to necking depending on the test temperature as well as combinations of mean stress and stress amplitude. Occurrence of DSA at 823 K proved to be beneficial by way of extending the safe zone of operation to higherR-ratios in comparison with 923 K.

Damage and dynamic strain aging in a thermal aged cast duplex stainless steel

2004 ◽  
Vol 327 (2-3) ◽  
pp. 202-210 ◽  
Author(s):  
V. Calonne ◽  
C. Berdin ◽  
B. Saint-Germain ◽  
S. Jayet-Gendrot
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Dynamic Strain

scholarly journals High Temperature Plastic Instability and Dynamic Strain Aging in the Tensile Behavior of AISI 316 Stainless Steel

2017 ◽  
Vol 20 (suppl 2) ◽  
pp. 506-511 ◽  
Author(s):  
Sergio Neves Monteiro ◽  
Frederico Muylaert Margem ◽  
Verônica Scarpini Candido ◽  
André Ben-Hur da Silva Figueiredo
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Plastic Instability ◽  
Tensile Behavior ◽  
Dynamic Strain ◽  
316 Stainless Steel ◽  
Aisi 316 Stainless Steel ◽  
Aisi 316
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