Influence of different combined severe shot peening and laser surface melting treatments on the fatigue performance of 20CrMnTi steel gear

Lv, You; Lei, Liqun; Sun, Lirong

doi:10.1016/j.msea.2016.01.050

Cited by 49 publications

(29 citation statements)

References 27 publications

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“…Mechanical methods can be combined with other surface strengthening treatments such as thermochemical methods for further improvement in fatigue strength and fatigue life of steel components [9][10][11][12][13]. As the thermochemical method is mostly benefited by increasing the microhardness and the mechanical method is mostly benefited by generating the compressive residual stress, a positive synergistic effect can therefore be anticipated if these two methods are combined.…”

Section: Introductionmentioning

confidence: 99%

Shot Peening Effects on Subsurface Layer Properties and Fatigue Performance of Case‐Hardened 18CrNiMo7‐6 Steel

Zhang

et al. 2018

Advances in Materials Science and Engineering

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e present study is conducted with a dual-aim: firstly, to examine the effect of several single shot peening conditions on the subsurface layer properties and fatigue performance of the case-hardened 18CrNiMo7-6 steel, and secondly, to propose an optimized peening condition for improved fatigue performance. By carrying out the subsurface integrity analysis and fatigue testing, the underlying relationships among the peening process, subsurface layer property and fatigue performance are investigated, the way peening conditions affect the fatigue life and its associated scatter for the case-hardened 18CrNiMo7-6 steel is quantitatively assessed. e in-depth study shows that dual peening can be an optimized solution, for it is able to produce a subsurface layer with enhanced properties and eventually gain a significant improvement in fatigue performance.

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Section: Introductionmentioning

confidence: 99%

Shot Peening Effects on Subsurface Layer Properties and Fatigue Performance of Case‐Hardened 18CrNiMo7‐6 Steel

Zhang

et al. 2018

Advances in Materials Science and Engineering

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“…Since f A is directly related to the impact velocity of shots, the increased f A produces more impact kinetic energy and induces a greater degree of plastic deformation. 16 Gao 8 reported that with peening intensity increasing from 0.15 to 0.35 mm A, the affect depths h rm of TC18 increases from 70 to 80 mm, and the h r increases from 170 to 220 mm. However, the affect depths h rm and h r of Ti1023 alloy almost unchanged when steel shots (d shot = 0.58 mm) with f A = 0.25 and 0.31 mm A was used.…”

Section: Discussionmentioning

confidence: 99%

“…When the stress intensity factor is lower than the threshold value of the fatigue crack propagation, the fatigue crack propagation will even stop propagating. 16 Liu et al 17 investigated the effect of shot peening on the high cycle fatigue properties of the Mg-10Gd-3Y alloy. They found that compared with unpeened specimen, crack nucleation region in the peened specimen was smaller, and shot peeninginduced CRS have contributed to push the fatigue crack nucleation site from surface to subsurface regions.…”

Section: Introductionmentioning

confidence: 99%

Surface characterization of Ti1023 alloy shot peened by cast steel and ceramic shot

Yao

Zhang

2017

Advances in Mechanical Engineering

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To optimize the surface properties such as surface roughness, residual stress, and micro-hardness of Ti1023 titanium alloy, the effects of shot peening on Ti1023 alloy were investigated. Surface roughness, surface topography, residual stress, micro-hardness, and micro-structure were carried out at different shot-peening parameters. The results demonstrate that the increased peening intensity enhances the surface roughness, compressive residual stresses, and hardness in subsurface, which is mainly due to the plastic deformation in the near surface layer. Specimen 11 has a low surface roughness of R a = 1.91 mm, well-developed dimple topography, higher compressive residual stress layer depth of 143 mm, and higher hardened layer depth of 200 mm. The ceramic shots with a diameter of 1.08 mm and peening intensity of 0.18 mm A are the optimal shot-peening conditions.

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Section: Introductionmentioning

confidence: 99%

The effects of shot peening on subsurface layer properties and fatigue performance of case-hardened 18CrNiMo7-6 steel

Xie

Sun

et al. 2018

MATEC Web Conf.

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Abstract. The present study is conducted with a dual-aim; firstly, examine the effect of several single shot peening conditions on the subsurface layer properties and fatigue performance of the case-hardened 18CrNiMo7-6 steel. By carrying out the subsurface integrity analysis and fatigue testing, the underlying relationships among the peening process, subsurface layer property and fatigue performance are investigated, the way peening conditions affect the fatigue life and its associated scatter for the casehardened 18CrNiMo7-6 steel is quantitatively assessed.

show abstract

Influence of different combined severe shot peening and laser surface melting treatments on the fatigue performance of 20CrMnTi steel gear

Cited by 49 publications

References 27 publications

Shot Peening Effects on Subsurface Layer Properties and Fatigue Performance of Case‐Hardened 18CrNiMo7‐6 Steel

Shot Peening Effects on Subsurface Layer Properties and Fatigue Performance of Case‐Hardened 18CrNiMo7‐6 Steel

Surface characterization of Ti1023 alloy shot peened by cast steel and ceramic shot

The effects of shot peening on subsurface layer properties and fatigue performance of case-hardened 18CrNiMo7-6 steel

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