Journal ArticleDOI
Laser shock peening-induced surface gradient stress distribution and extension mechanism in corrosion fatigue life of AISI 420 stainless steel
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In this paper, a massive laser shock peening treatment (MLSPT) with different pulse energies and effects of MLSPT on residual stress and corrosion fatigue properties in NaCl solutions with different pH values were investigated by microstructural observation, residual stress measurement, corrosion fatigue test, and fractural morphology.About:
This article is published in Corrosion Science.The article was published on 2020-12-01. It has received 78 citations till now. The article focuses on the topics: Corrosion fatigue & Peening.read more
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Effects of laser shock peening on the hot corrosion behaviour of the selective laser melted Ti6Al4V titanium alloy
TL;DR: In this article, the effects of laser shock peening on the hot corrosion behavior of the selective laser melted (SLMed) Ti6Al4V titanium alloy were investigated and the results indicated that the SLMed specimen exhibited a significantly lower hot corrosion resistance in comparison to the SLM-LSPed specimen.
Journal ArticleDOI
Strengthening CrFeCoNiMn0.75Cu0.25 high entropy alloy via laser shock peening
TL;DR: In this article , a gradient microstructure comprising subgrains, dense dislocations and nano-twins near the treated surface was proposed to improve the performance of high-entropy alloy.
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Microstructural evolution and tensile property enhancement of remanufactured Ti6Al4V using hybrid manufacturing of laser directed energy deposition with laser shock peening
TL;DR: In this article , the effects of interlayer laser shock peening (LSP) treatment, namely, an innovative laser hybrid additive manufacturing technology combined LDED with LSP, on microstructural evolution and mechanical performance of Ti6Al4V alloy were investigated.
Journal ArticleDOI
Combining manufacturing of titanium alloy through direct energy deposition and laser shock peening processes
Jiaxuan Chi,Jiaxuan Chi,Zhongyi Cai,Hepeng Zhang,Hepeng Zhang,Hongqiang Zhang,Wei Guo,Zhandong Wan,Guofeng Han,Peng Peng,Zhi Zeng +10 more
TL;DR: In this paper, a DEDed repaired sample was fabricated by depositing TA15 powders on a forged TC17 plate, and subjected to a following LSP treatment, and the effects of LSP on microstructures, residual stress, and tensile properties of DEDs were evaluated.
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Review on residual stresses in metal additive manufacturing: formation mechanisms, parameter dependencies, prediction and control approaches
TL;DR: In this article , the authors provide a comprehensive review of the formation mechanisms, influence of process parameters, prediction and control methods of residual stress in MAMs, and their effect on the dimensional stability, corrosion resistance, crack growth resistance and mechanical properties of MAM samples.
References
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Phase transformations in metals and alloys
TL;DR: In this article, the authors discuss the properties of phase diagrams for single-component systems, including the influence of interfaces on the equilibrium of binary solutions in Heterogeneous Systems (Heterogeneous Binary Phase Diagrams).
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Nucleation in solids: The induction and steady state effects
TL;DR: In this article, the authors describe the process of nucleation, growth and coarsening, which combines to dictate the final particle density produced by a phase transformation, illustrated in Fig. 1, which depicts the number of particles vs. time.
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Fatigue behaviors of AISI 316L stainless steel with a gradient nanostructured surface layer
TL;DR: In this article, a gradient nanostructured (GNS) surface layer was formed on AISI 316L stainless steel and the mean grain size is ∼30nm in the topmost surface layer and increases with depth.
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Microstructural response and grain refinement mechanism of commercially pure titanium subjected to multiple laser shock peening impacts
TL;DR: In this article, the microstructural response and grain subdivision process in commercially pure (CP) titanium subjected to multiple laser shock peening (LSP) impacts were investigated by means of optical microscopy (OM), scanning electron microscopy and transmission electron microscope (TEM) observations.
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Evaluation of corrosion resistance of AA6082-T651 aluminium alloy after laser shock peening by means of cyclic polarisation and ElS methods
Uroš Trdan,Janez Grum +1 more
TL;DR: Laser shock peening (LSP) without ablative coating at various power densities was applied to AA6082 aluminium alloy to investigate corrosion behavior in a 0.6-M NaCl solution.