Fatigue crack growth behavior of friction stir processed super duplex stainless steels (SAF- 2507)
Source abstract
Abstract
Abstract The effects of friction stir processing (FSP) on the fatigue crack growth (FCG) behavior of super duplex stainless steel (SDSS) SAF 2507 was investigated. Both base metal (BM) and friction stir processed (FSPed) compact tension (CT) samples were fatigue tested under constant amplitude load; at a stress ratio (R) of 0.1 and frequency of 10 Hz. Crack length was monitored using a video camera. The crack growth behavior for both BM and FSPed CT specimens was characterized using stress intensity factor and the J-integral computed using elastic-plastic finite element analysis (FEA). Optical and scanning electron microscopes (SEM) were used to analyze the fracture surfaces. The results of this study show that FSPed specimens have higher fatigue crack growth (FCG) resistance and fatigue life as compared to base material. In addition, the crack propagation under the above-mentioned conditions has revealed changes in fracture mechanisms, due to FSP. The microscopic analyses of the fracture surface of FSPed specimens revealed numerous crack initiations sites and complicated crack propagation paths which contributed to the retardation of the crack propagation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Welding Techniques Analysis · Mechanical stress and fatigue analysis · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Effect of multipass friction stir processing on mechanical and corrosion behavior of 2507 super duplex stainless steel10.1007/s11665-016-2470-0 ↗
2. Analysis of super duplex stainless steel properties as an austenite-ferrite composite
3. Recent developments in stainless steel10.1016/j.mser.2009.03.001 ↗
4. Critical pitting and repassivation temperatures for duplex stainless steel in chloride solutions10.1016/j.electacta.2008.02.047 ↗
5. Corrosion versus mechanical tests for indirect detection of alpha prime phase in UNS S32520 super duplex stainless steel10.5006/1.3570538 ↗
6. Study of decomposition of ferrite in a duplex stainless steel cold worked and aged at 450˚C-500˚C10.1016/j.msea.2008.09.021 ↗
7. Hsieh · 2012 · 16
8. Comparison of electrochemical behavior between coarse-grained and fine-grained AISI 430 ferritic stainless steel by Mott-Schottky analysis and EIS measurements10.1016/j.jallcom.2015.03.142 ↗
9. Enhancement of flow properties by grain refinement and other structural modification10.1016/j.proeng.2014.11.006 ↗
10. High strain rate superplasticity in friction stir processed Al-Mg-Zr alloy10.1016/S0921-5093(02)00824-9 ↗
11. Microstructure and mechanical properties of friction stir welded SAF 2507 super duplex stainless steel10.1016/j.msea.2005.02.054 ↗
12. Effect of friction stir welding speed on the microstructure and mechanical properties of a duplex stainless steel10.1016/j.msea.2008.05.025 ↗
13. Enhancement in mechanical properties and corrosion resistance of 2507 duplex stainless steel via friction stir processing10.1016/j.jmrt.2020.05.057 ↗
14. Microstructure, mechanical properties and fatigue crack growth behavior of friction stir welded joint of 6061-T6 aluminum alloy10.1016/j.ijfatigue.2020.105556 ↗
15. Surface microstructure modifications of low carbon steel welds produced by low-heat-Input friction stir processing10.2320/matertrans.MT-M2020117 ↗
16. Assessment of fatigue life and crack growth resistance of friction stir welded AISI 409M ferritic stainless steel joints10.1016/j.msea.2012.01.071 ↗
17. Systematic investigation of the fatigue performance of a friction stir welded low alloy steel10.1016/j.matdes.2015.04.046 ↗
18. Evaluation of j integral of a compact tension specimen by using finite element analysis technique for fracture toughness assesment
19. The fracture resistance of a ferritic-austenitic duplex steel10.1016/1359-6454(95)00412-2 ↗
20. Finite element modeling of friction stir welding - Thermal and thermomechanical analysis10.1016/S0890-6955(03)00158-5 ↗
21. Thermoelasticity and CCD analysis of crack propagation in AA6082 friction stir welded joints10.1016/j.ijfatigue.2008.07.016 ↗
22. A FEM based methodology to simulate multiple crack propagation in friction stir welds10.1016/j.engfracmech.2017.08.024 ↗
23. ArcelorMittal: Steel Manufacturing. Available online: https://corporate.arcelormittal.com/(accessed on 10 October 2019).
24. Influence of friction stir processing on mechanical behavior of 2507 SDSS10.3390/met10030369 ↗
25. ASTM E647 · 2020
26. A critical analysis of crack propagation laws10.1115/1.3656900 ↗
27. 22 Cr 5 Ni duplex and 25 Cr 7 Ni superduplex stainless steel: hydrogen influence on fatigue crack propagation resistance10.1016/j.engfracmech.2007.01.008 ↗
28. An experimental investigation of tensile properties and fatigue crack growth behaviour for dual-phase steel
29. Fatigue crack closure: a review of the physical phenomena10.1111/ffe.12578 ↗
30. Notch and temperature effects on crack propagation in SS 304 under LCF conditions10.1115/1.2883666 ↗
31. A crack closure model of fatigue crack growth inplates of finite thickness using small-scale yielding conditions10.1016/j.mechmat.2008.10.002 ↗
32. Dowling · 2007
33. Effects of microstructure on fatigue crack growth behavior in cold-rolled dual phase steels10.1016/j.msea.2014.06.002 ↗
34. Fatigue crack propagation in austeno-ferritic duplex stainless steel 22 Cr 5 Ni10.1016/S0142-1123(99)00076-6 ↗