In situ nanoparticle-induced anti-oxidation mechanisms: Application to FeCrB alloys

Xu, Gaopeng; Wang, Kui; Li, Haonan; Ju, Jiang; Dong, Xianping; Jiang, Haiyan; Wang, Qudong; Ding, Wei

doi:10.1016/j.corsci.2021.109656

Cited by 11 publications

(4 citation statements)

References 63 publications

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“…Furthermore, the emerging cracks and holes on the scales were gradually filled and vanished. Obviously, a large number of cracks and holes formed on the surface of sample A1 may provide fast channels for the diffusion of oxygen ions and thus promote the constant oxidation process [ 5 ]. With an increase in Si content, the inside of the oxide film became denser, preventing the outward diffusion of the internal matrix elements, and the surface became flatter.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 13 shows the EDS mapping of a cross-section of the Fe 2 B ⊥ sample in the A4 alloy oxidized for 60 h at 1073 K. It is clear that the O element was uniformly distributed in the whole oxide film. However, due to the small diffusion coefficient of Si, it was concentrated in the lower part of the oxide film to form a thin layer of SiO 2 , particularly at the inner interface, which infers that the internal oxidation of the Si +4 cation occurs at the inner interface [ 5 , 43 ]. Si was sparsely distributed in the upper part of the oxide film, while Fe was distributed in the whole oxide film and can react with O 2− ions to form Fe 2 O 3 and Fe 3 O 4 .…”

Section: Resultsmentioning

confidence: 99%

“…In the past few decades, many efforts have been made to improve the high-temperature corrosion-wear behaviors of metal materials in metal liquids during the liquid metal forming [ 1 , 2 , 3 , 4 , 5 ]. There is good evidence that Fe–B alloys have good corrosion resistance due to the formation of a large number of stable and continuous borides in the matrix [ 6 , 7 , 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Boride Orientation and Si Content on High-Temperature Oxidation Resistance of Directionally Solidified Fe–B Alloys

Guo

He²,

et al. 2022

Materials

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In this work, the as-cast directionally solidified (DS) Fe–B alloys with various Si contents and different boride orientation were designed and fabricated, and the as-cast microstructures and static oxidation behaviors of the DS Fe–B alloys were investigated extensively. The as-cast microstructure of the DS Fe–B alloys consists of the well-oriented Fe2B columnar grains and α-Fe, which are strongly refined by Si addition. The oxidation interface of the scales in the DS Fe–B alloy with 3.50 wt.% Si demonstrates an obvious saw-tooth shaped structure and is embedded into the alternating distributed columnar layer structures of the DS Fe–B alloy with oriented Fe2B and α-Fe matrix, which is beneficial to improve the anti-peeling performance of the oxide film compared with lower amounts of Si addition in DS Fe–B alloys with oriented Fe2B [002] orientation parallel to the oxidation direction (i.e., oxidation diffusion direction, labeled as Fe2B// sample). In the DS Fe–B alloys with oriented Fe2B [002] orientation vertical to the oxidation direction (i.e., labeled as Fe2B⊥ sample), due to the blocking and barrier effect of laminated-structure boride, Si is mainly enriched in the lower part of the oxide film to form a dense SiO2 thin layer adhered to layered boride. As a result, the internal SiO2 thin layer plays an obstructed and shielded role in oxidation of the substrate, which hinders the further internal diffusion of oxygen ions and improves the anti-oxidation performance of the Fe2B⊥ sample, making the average anti-oxidation performance better than that of the Fe2B// sample.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Boride Orientation and Si Content on High-Temperature Oxidation Resistance of Directionally Solidified Fe–B Alloys

Guo

He²,

et al. 2022

Materials

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“…It is interesting that a polylactide (PLA) coating on iron did not protect Fe from its corrosion, but accelerated Fe corrosion owing to the interference of Ca-P precipitating on Fe and the local acidic microenvironment on the Fe surface along with hydrolysis of the aliphatic polyester, as revealed by Ding’s group [ 47 ]. More strategies to regulate corrosion of biometals have been suggested [ 48 , 49 ], and still in progress. For example, Yuan et al .…”

Section: The Different Sources Of Biomaterials For Tissue Regenerationmentioning

confidence: 99%

Recent advances in regenerative biomaterials

Cao

Ding

2022

Regenerative Biomaterials

115

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Nowadays, biomaterials have evolved from the inert supports or functional substitutes, to the bioactive materials able to trigger or promote the regenerative potential of tissues. The interdisciplinary progress has broadened the definition of “biomaterials”, and a typical new insight is the concept of tissue induction biomaterials. The term “regenerative biomaterials” and thus the contents of the present paper are relevant to yet beyond tissue induction biomaterials. This review summarizes the recent progress of medical materials including metals, ceramics, hydrogels, other polymers, and bio-derived materials. As the application aspects are concerned, this paper introduces regenerative biomaterials for bone and cartilage regeneration, cardiovascular repair, three dimensional bioprinting, wound healing, and medical cosmetology. Cell-biomaterial interactions are highlighted. Since the global pandemic of COVID-19, the review particularly mentions biomaterials for public health emergency. In the last section, perspectives are suggested: (1) Creation of new materials is the source of innovation; (2) Modification of existing materials is an effective strategy for performance improvement; (3) Biomaterial degradation and tissue regeneration are required to be harmonious with each other; (4) Host responses can significantly influence the clinical outcomes; (5) The long-term outcomes should be paid more attention to; (6) The non-invasive approaches for monitoring in vivo dynamic evolution are required to be developed; (7) Public health emergencies call for more research & development of biomaterials; (8) Clinical translation needs to be pushed forward in a full-chain way. In the future, more new insights are expected to be shed into the brilliant field — regenerative biomaterials.

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