ArticleMaterials (Basel, Switzerland)2023
Laser Shock Peening Improves the Corrosion Resistance of an E690 High-Strength Steel Cladding Layer.
Article in Materials (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Laser Shock Peening of Gear Steels and Related Metallic Materials: Near-Surface States, Surface Integrity, and Component-Level Applications.Materials (Basel, Switzerland) · 2026Review
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Authors and funding
5 authors.
Funding
Abstract
To investigate the effect of laser shock peening parameters on the corrosion resistance of an E690 high-strength steel cladding layer, NVE690 high-strength steel powder was selected for testing at various power densities of pulse lasers. The surface roughness and residual stress of the treated samples were measured, and the microstructure morphology of the sample surface was observed. The electrochemical corrosion tests were conducted with an electrochemical workstation to measure the electrometer polarization, obtain the impedance curve, and observe the electrochemical corrosion. As the laser power density increased, the surface grains of the E690 high-strength steel cladding layer continued to refine until nanocrystals formed, and the residual compressive stress on the surface increased. The residual compressive stress on the surface rendered the passivation film stable and dense; furthermore, the refinement of surface grains inhibited the initiation and propagation of microcracks. The positive shift of the corrosion potential increased from -1.004 to -0.771 V, the corrosion current density decreased from 114.5 to 5.41 μA/cm
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