Discrepancy in ductility improvement in repeated stress relaxation of AA7075

K Prasad, N Ansari, H Krishnaswamy, J Jain - Materials Science and …, 2023 - Elsevier
… [20] attributed ductility improvement in SS316 to microstructure based mechanism. It was …
alloy [14], copper [36], and stainless steel [37]. Over the years, modifications to the existing …

An Improved Creep-Fatigue Life Model Involving the Cyclic Softening/Hardening and Stress Relaxation Effect

XC Zhang, JG Gong, FH Gao… - Journal of …, 2021 - asmedigitalcollection.asme.org
… austenitic stainless steel (eg, 304 and 316 stainless steels), … relaxation stress and time at
half-life for 316 LN steel at 600 … , improved models based on time fraction rule and ductility

Advanced constitutive model for repeated stress relaxation accounting for transient mobile dislocation density and internal stress

A Varma, H Krishnaswamy, J Jain, MG Lee… - Mechanics of Materials, 2019 - Elsevier
… the macroscopic time dependent behavior in metals. During … the experimental data of SS
316 during stress relaxation at 550 … a vital role in ductility improvement due to stress relaxation. …

Self-consistent modelling of cyclic loading and relaxation in austenitic 316H stainless steel

MP Petkov, J Hu, ACF Cocks - Philosophical Magazine, 2019 - Taylor & Francis
… HTML version using MathJax in order to improve their display. … LCF tests on Type 316
stainless steel between 500C and 650… the amount of stress relaxation during the transient period. …

[HTML][HTML] A comparison of amplitude-and time-dependent cyclic deformation behavior for fully-austenite stainless steel 316L and duplex stainless steel 2205

S Li, W Jiang, X Xie, Z Dong - Materials, 2021 - mdpi.com
… than that of conventional single-phase stainless steel to improve the phase ratio and … stress
relaxation reflects the magnitude of viscous stress. Figure 8a,b compare the stress relaxation

Investigations on ductility improvement and reloading yielding during stress relaxation of dual phase Ti–6Al–4V titanium alloy

K Prasad, H Krishnaswamy, N Arunachalam - Journal of Alloys and …, 2020 - Elsevier
stainless steel [15] confirm the relaxation induced ductility … [33] subjected SS 316 to a
range of relaxation time and … Thus it is inferred that there exists a time dependent locking …

Cyclic hardening/softening behavior of 316L stainless steel at elevated temperature including strain-rate and strain-range dependence: Experimental and damage …

X Xie, W Jiang, J Chen, X Zhang, ST Tu - International Journal of Plasticity, 2019 - Elsevier
stress level or the stress relaxation phenomenon at a constant strain level, which is highlighted
in Zhang and Xuan (2017) when modeling the creep-fatigue behavior of 9–12% Cr steel, …

On the interplay of friction and stress relaxation to improve stretch-flangeability of dual phase (DP600) steel

K Prasad, B Venkatesh, H Krishnaswamy… - CIRP Journal of …, 2021 - Elsevier
… While the time dependent viscoplastic behavior of material is attributed to the observed …
ductility improvement due to stress relaxation is sensitive to pre-strain, strain rate and hold time […

A review on stress relaxation cracking in austenitic stainless steel

I Dayalan, P Frank Crasta, S Pradhan… - … of International Conference …, 2020 - Springer
stainless steel, ferritic stainless steel, heat-resistant steel, and … Understanding SRC
phenomenon is necessary to improveStress relaxation cracking is generally referred to as …

Modelling time-dependent relaxation behaviour using physically based constitutive framework

V Balaji, H Krishnaswamy, S Natarajan… - International Journal of …, 2024 - Elsevier
improvement. However, in this investigation, the discussion is restricted to the role of stress
relaxation. … of stress during relaxation of stainless steel specimens. Similar efforts to model …