Evolution of residual stress redistribution associated with localized surface microcracking in shot-peened medium-carbon steel during fatigue test

Kim, Jong Cheon; Cheong, Seong Kyun; Noguchi, Hiroshi

doi:10.1016/j.ijfatigue.2013.06.010

Cited by 61 publications

(20 citation statements)

References 15 publications

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“…The stability of the residual stress field has been investigated by a number of researchers for shot peened steel [13][14][15][16][17], nickel base superalloys [18][19][20], and titanium alloys [21]. However, the relaxation of LSP'd residual stress has not been extensively studied to date although resistance to fretting has been quantified [9].…”

Section: Introductionmentioning

confidence: 99%

Evolution of a laser shock peened residual stress field locally with foreign object damage and subsequent fatigue crack growth

2015

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Evolution of a laser shock peened residual stress field locally with foreign object damage and subsequent fatigue crack growth. Acta Materialia, http://dx.doi.org/10.1016/j.actamat.2014.09.032 conditions. The ballistic FOD impacts were introduced by impacting a cube edge at an angle of head-on (0 degrees) to the leading edge. The residual stress distributions have been mapped by synchrotron X-ray diffraction prior to cracking and subsequent to short (~1 mm) and long (up to 6 mm) crack growth. 2The results suggest that the local residual stress field is highly stable even to the growth of relatively long cracks.

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Section: Introductionmentioning

confidence: 99%

Evolution of a laser shock peened residual stress field locally with foreign object damage and subsequent fatigue crack growth

2015

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“…S-N curve and residual stress relaxation redistribution for varying mechanical loads with a peening intensity of 0.36 mmA, respectively. From the results [10,12], the fatigue lifespan was improved after SP treatments; in particular, the fatigue limit of the SP specimen was increased by approximately 20%. However, this tendency towards increase was reversed when the applied stress amplitude was above the yield strength of the original material, and the fatigue lifetime decreased compared with the UP specimens, regardless of SP treatment.…”

Section: Resultsmentioning

confidence: 96%

“…In particular, cut wire shots were used in the peening treatment, with a diameter of 0.8 mm, and the detailed peening conditions are described in Ref. [10].…”

Section: Methodsmentioning

confidence: 99%

“…The size of the FIB-ed notch was chosen to be smaller than the maximum CRS depth and similar to the initial micro-damage length, as shown in Fig. 2a [10]. The FIB was set to a voltage of 30 kV and a current of 30 nA was used with a rectangular shape, as shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Therefore, many attempts have been made to improve fatigue lifespan [1][2][3][4] and to quantify damage growth [5][6][7][8] in these situations. In terms of fatigue lifespan extension, shot-peening (SP) is an effective tool with regards to the induced compressive residual stress (CRS) near the surface, and has strongly retarded fatigue crack growth under cyclic loads [9,10]. However, the beneficial effects of SP can decrease or disappear as a result of the residual stress relaxation phenomenon during the fatigue lifetime [3,11].…”

Section: Introductionmentioning

confidence: 99%

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Proposed fatigue damage measurement parameter for shot-peened carbon steel based on fatigue crack growth behavior

Kim

Cheong

Noguchi

2015

International Journal of Fatigue

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Temperature Effect on Microstructure Evolution and Mechanical Properties of Fe–28Mn–8Al–1C Lightweight Steel via Supersonic Fine Particle Bombardment

Xiong,

Lv,

Zha

et al. 2024

steel research int.

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The influence of room temperature (RT) and cryogenic temperature (CR) supersonic fine particle bombardment (SFPB) on the surface, microstructure, and mechanical properties of Fe–28Mn–8Al–1C lightweight steel is investigated in this work. The results indicate that both RT‐SFPB and CR‐SFPB successfully induce gradient nanostructures on the surface of steel, refining the grains to the nanoscale. Furthermore, CR‐SFPB results in a finer grain size and higher dislocation density compared to RT‐SFPB. Additionally, the dominant deformation mechanism shifts from dislocation slip for RT‐SFPB to a combination of dislocation slip and twinning for CR‐SFPB. CR‐SFPB is seen to be superior to RT‐SFPB in terms of surface integrity and strength due to low‐temperature lubrication effect, suppression of dynamic recovery and reduced stacking fault energy of the material. Interestingly, while CR‐SFPB enhances strength, elongation remains comparable to that of untreated material. However, excessive impact times during SFPB treatment promote microcrack formation on the surface, compromising plasticity.

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Evolution of residual stress redistribution associated with localized surface microcracking in shot-peened medium-carbon steel during fatigue test

Cited by 61 publications

References 15 publications

Evolution of a laser shock peened residual stress field locally with foreign object damage and subsequent fatigue crack growth

Evolution of a laser shock peened residual stress field locally with foreign object damage and subsequent fatigue crack growth

Proposed fatigue damage measurement parameter for shot-peened carbon steel based on fatigue crack growth behavior

Temperature Effect on Microstructure Evolution and Mechanical Properties of Fe–28Mn–8Al–1C Lightweight Steel via Supersonic Fine Particle Bombardment

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