Effect of laser shock processing on fatigue life of 2205 duplex stainless steel notched specimens

Jiménez, César A. Vázquez; Gómez-Rosas, G.; Rubio-González, C.; Granados-Alejo, V.; Hereñú, S.

doi:10.1016/j.optlastec.2017.07.020

Cited by 31 publications

(9 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is evident that the geometry type changes the preferential direction of fatigue crack growth. According to anisotropic effects reported in [28,29], this direction change could influence fatigue results in fillet samples. e fatigue crack evolution in treated and untreated notched samples is shown in Figure 12.…”

Section: Fatigue Testmentioning

confidence: 99%

“…Rubiogonzalez et al founded that as the density of pulses increases, the fatigue crack growth rate decreases in compact tension samples of Al-6061-T6 [2] and 2205 DSS [3]. e fatigue life behavior as function of laser swept direction was optimized for bending fatigue in Ti-6Al-2Sn-4Zr-2Mo [4] and tensile-tensile fatigue test to 2024-T351 [5], 2205 DSS [6], and 316L [7] alloys. Different fatigue behaviors were observed varying the swept direction for each case, demonstrating a high influence of this LSP parameter on fatigue life behaviors of these alloys.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fatigue Life Behavior of Laser Shock Peened Duplex Stainless Steel with Different Samples Geometry

Jiménez

Granados-Alejo²,

Rubio-González

et al. 2019

Advances in Materials Science and Engineering

Self Cite

View full text Add to dashboard Cite

Two different stress raiser geometries (fillets and notched) were treated by laser shock peening (LSP) in order to analyze the effect of sample geometry on fatigue behavior of 2205 duplex stainless steel (DSS). The LSP treatment was carried through Nd : YAG pulsed laser with 1064 nm wavelength, 10 Hz frequency, and 0.85 J/pulse. Experimental and MEF simulation results of residual stress distribution after LSP were assessed by hole drilling method and ABAQUS/EXPLICIT software, respectively. The fatigue tests (tensile-tensile axial stress) were realized with stress ratio of R = 0.1 and 20 Hz. A good comparison of residual stress simulation and experimental data was observed. The results reveal that the fatigue life is increased by LSP treatment in the notched samples, while it decreases in the fillet samples. This is related to the residual stress distribution after LSP that is generated in each geometry type. In addition, the fatigue crack growth direction is changed according to geometry type. Both the propagation direction of fatigue crack and the anisotropy of this steel results detrimental in fillet samples, decreasing the number of cycles to the fatigue crack initiation. It is demonstrated that the LSP effect on fatigue performance is influenced by the specimen geometry.

show abstract

Section: Fatigue Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fatigue Life Behavior of Laser Shock Peened Duplex Stainless Steel with Different Samples Geometry

Jiménez

Granados-Alejo²,

Rubio-González

et al. 2019

Advances in Materials Science and Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…Yella et al reported that using an absorbent tape as a sacrificial layer was a good way to perform LSP on the stainless steel and it did not cause surface damage [29]. Vázquez Jiménez et al pointed out that the best LSP path for extending the high-cycle fatigue life was perpendicular to the rolling direction [30]. Lu et al found that the treated sample displayed better tensile properties such as stronger flow stress and higher ultimate tensile strength with an increasing LSP impact time [31].…”

Section: Introductionmentioning

confidence: 99%

Effect of Laser Shock Processing and Aluminizing on Microstructure and High-Temperature Creep Properties of 321 Stainless Steel for Solar Thermal Power Generation

Huang

et al. 2020

International Journal of Photoenergy

View full text Add to dashboard Cite

The aluminized layer of 321 stainless steel was treated by laser shock processing (LSP). The effects of constituent distribution and microstructure change of the aluminized layer in 321 stainless steel on creep performance at high temperature were investigated. SEM and EDS results reveal that aluminized coating is mainly composed of an Al 2 O 3 outer layer, the transition layer of the Fe-Al phase, and the diffusion layer. Additionally, LSP conducted on coating surface not only improves the density of the layer structure, resulting in an increment on the bonding strength of both infiltration layer and substrate, but also leaves higher residual compressive stress in the aluminized layer which improves its creep life effectively. Experimental results indicate that the microhardness of the laser-shocked region is improved strongly by the refined grains and the reconstruction of microstructures. Meanwhile, the roughness and microhardness of aluminized steel are found to increase with the laser impact times. On the other hand, the intermetallic layers, whose microstructure is stable enough to inhibit crack initiation, reinforce strength greatly. The anticreep life of aluminized sample with three times LSP was increased by 232.1% as compared to aluminized steel, which could attribute to the increased dislocation density in the peened sample as well as the decrease of creep voids in size and density.

show abstract

“…Unlike the conventional LSP, LPwC is a process that employs low laser energy (<1 J) without any protective coatings, which can reduce the installation and operating costs and make it more viable for mass production [15][16][17]. Thus, a number of studies about the application of LPwC on the metallic materials have been conducted, such as stainless steel [18][19][20][21][22][23][24], aluminum alloys [25][26][27][28][29] as well as titanium alloys [30][31][32][33][34][35] in the past two decades. Maawad et al [33] comparatively investigated the effect of LPwC, shot peening and ball-burnishing on the residual stress state as well as fatigue performance of three titanium alloys, namely Ti-2.5Cu, Ti-54M and LCB.…”

Section: Introductionmentioning

confidence: 99%

Investigations into the Improvement of the Mechanical Properties of Ti-5Al-4Mo-4Cr-2Sn-2Zr Titanium Alloy by Using Low Energy Laser Peening without Coating

Xue

Jiao

et al. 2020

Materials

View full text Add to dashboard Cite

Mechanical properties, such as residual stress, micro-hardness and fatigue performance, of the Ti-5Al-4Mo-4Cr-2Sn-2Zr titanium alloy were improved via the laser peening without coating (LPwC) with a water-penetrable wavelength of 532 nm and pulse duration of 10 ns. In this paper, three kinds of laser energy, namely 85, 110 and 160 mJ were used to process the samples. The titanium alloy samples were also peened with different impact times (1, 3 or 5 impacts) at the energy of 85 mJ. The micro-hardness and residual stress distribution results provided that LPwC can introduce compressive residual stress (CRS) and also induce hardening of the target materials. Further, micro-hardness and CRS showed the increasing trends when the laser impact times increased. However, the CRS and micro-hardness decreased while the laser energy increased from 110 to 160 mJ, which was attributed to the dynamic equilibrium between the thermal and mechanical effects of LPwC. High cycle fatigue strength of the titanium alloy was significantly improved from 360 to 490.3 MPa after three impacts LPwC. The strengthening mechanism of fatigue strength subjected to LPwC was a combined effect between the laser-induced CRS and the high-density dislocations. 101The LPwC experiment was conducted by a Q-switched Nd:YAG laser with a water-penetrable 102 wavelength of 532 nm (Mianna Q series) which operates at 3 Hz and it can supply an maximum pulse 103 energy of 0.8 J. The full duration half maximum (FWHM) of the laser is 10 ns and it can generate the 104 pulsed laser with the spot size of 400 μm. Multiple pulses (1, 3, 5) and a range of laser energies (85 105 mJ, 110 mJ, 160 mJ) were used, and the effect of the variation of these parameters on the mechanical 106 properties change has been investigated. The detailed laser parameters are shown in Table 2. During 107 the laser processing, the specimens were immersed in the water tank, in which the distance between 108 the surface of the specimen and water surface is about 1-2 mm. In addition, the specimen was fixed 109 on the X-Y two axis translation platform and move in a zigzag scan type (as shown in Figure 1). It 110 can be seen from Figure 3 (Schematic diagram of LPwC experimental setup) that the operation of the 111 platform and the laser were controlled by the PC via a self-programmed software.101 The LPwC experiment was conducted by a Q-switched Nd:YAG laser with a water-penetrable 102 wavelength of 532 nm (Mianna Q series) which operates at 3 Hz and it can supply an maximum pulse 103 energy of 0.8 J. The full duration half maximum (FWHM) of the laser is 10 ns and it can generate the 104 pulsed laser with the spot size of 400 μm. Multiple pulses (1, 3, 5) and a range of laser energies (85 105 mJ, 110 mJ, 160 mJ) were used, and the effect of the variation of these parameters on the mechanical 106 properties change has been investigated. The detailed laser parameters are shown in Table 2. During 107 the laser processing, the specimens were immersed in the water tank, in which the distance between 108...

show abstract

Effect of laser shock processing on fatigue life of 2205 duplex stainless steel notched specimens

Cited by 31 publications

References 40 publications

Fatigue Life Behavior of Laser Shock Peened Duplex Stainless Steel with Different Samples Geometry

Fatigue Life Behavior of Laser Shock Peened Duplex Stainless Steel with Different Samples Geometry

Effect of Laser Shock Processing and Aluminizing on Microstructure and High-Temperature Creep Properties of 321 Stainless Steel for Solar Thermal Power Generation

Investigations into the Improvement of the Mechanical Properties of Ti-5Al-4Mo-4Cr-2Sn-2Zr Titanium Alloy by Using Low Energy Laser Peening without Coating

Contact Info

Product

Resources

About