Mechanism of LaFeO 3 perovskite and gradient strain nanocrystalline improving carbon atom diffusion and tribological properties of carburizing steel
Tribology International, ISSN: 0301-679X, Vol: 177, Page: 107961
2023
- 11Citations
- 4Captures
- 1Mentions
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Most Recent News
Recent Studies from Harbin Engineering University Add New Data to Nanocrystals (Mechanism of Lafeo3 Perovskite and Gradient Strain Nanocrystalline Improving Carbon Atom Diffusion and Tribological Properties of Carburizing Steel)
2022 DEC 30 (NewsRx) -- By a News Reporter-Staff News Editor at Nanotech Daily -- New research on Nanotechnology - Nanocrystals is the subject of
Article Description
A composite layer of gradient nanocrystals and LaFeO 3 perovskite oxide was prepared. The influence of the composite layer on the diffusion of carbon atoms and the change of wear mechanism was studied. The experimental data and related mechanisms show that the formation mechanism of gradient nanocrystalline layer mainly involves dislocation slip and strain gradient evolution at grain boundaries. The oxygen vacancies provided by nano oxides improve the surface activity of the samples and promote the diffusion of carbon to deep layers. The existence of composite layer changes the wear mode of different depths. The oxide film formed on the surface promoted by rare earth provides the effect of anti-wear and lubrication. Oxygen vacancies improves the anti-spalling ability of oxide film.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0301679X22005321; http://dx.doi.org/10.1016/j.triboint.2022.107961; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85139032251&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0301679X22005321; https://dx.doi.org/10.1016/j.triboint.2022.107961
Elsevier BV
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