Preparation and Electrochemical Corrosion Behavior of Bulk Nanocrystalline Ingot Iron in HCl Acid Solution

Wang, S. G.; Shen, Chun; Kang, Long; Yang, Huaiyu; Wang, F. H.; Zhang, Z. D.

doi:10.1021/jp046297v

Cited by 70 publications

(42 citation statements)

References 21 publications

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“…The phase structures and grain size of the nanocrystalline 304ss had been reported in our previous work [19][20][21], in which the grain size of the experimental sample was found to be remarkably reduced from micro-scale (about 100 µm) to nano-scale(about 50 nm) by the XRD patterns, Scherrer calculation and TEM. Fig.…”

Section: Resultssupporting

confidence: 66%

<i>In Vitro</i> Corrosion and Haemocompatibility of Bulk Nanocrystalline 304 Stainless Steel by Severe Rolling

Nie

Wang

Shi

et al. 2010

MSF

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Abstract. Bulk nanocrystalline 304 stainless steel (nanocrystalline 304ss) discs had been successfully prepared by the commercial microcrystalline 304 stainless steel (microcrystalline 304ss) plate using severe rolling technique. Micro-hardness was measured to reveal the different mechanical behavior after the severe plastic deformation. The electrochemical corrosion resistance and ion release behavior after immersion of the samples were investigated in Hank's solution for its potential use as implant and orthodontic appliance in body. Furthermore, murine fibroblast cells were indirectly employed to detect cytotoxicity by co-incubation with the extraction from the given materials. Haemocompatibility, consisting of hemolysis test and adhesion of the platelets, was also measured with fresh human whole blood and platelet-rich plasma respectively. Polarization resistance trials indicate that nanocrystalline 304ss is more corrosion resistant in the Hank's solution, with lower current density and superficial corrosion morphologies. The release values of the biotoxic ions after immersion do not exceed the set limit and turn to be well below the critical value necessary to induce allergy and below daily dietary intake level. Cellular interaction is observed via the proliferated feature of the cell line. Hemolysis and platelet adhesion results elucidates that nanocrystalline 304ss is biological and hematologic compatible.

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Section: Resultssupporting

confidence: 66%

<i>In Vitro</i> Corrosion and Haemocompatibility of Bulk Nanocrystalline 304 Stainless Steel by Severe Rolling

Nie

Wang

Shi

et al. 2010

MSF

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“…Balance iron. The NB304ss sheet was fabricated by deep rolling treatment to the cast 304ss [11]. The NB304ss sheets were embedded in epoxy resin, leaving a working area of 1.5 cm 2 .…”

Section: Methodsmentioning

confidence: 99%

Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel

Liu

Wang

et al. 2006

Electrochimica Acta

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“…The transmission electron microscope image of BNII was shown in our pervious work, the grain size of BNII varied from 50 to 89 nm with an equiaxed structure [18]. Figure 2 presents LTE of BNII at six measurement directions on rolling plane and CPII at one measurement direction from liquid nitrogen to 300 K. From Fig.…”

Section: Resultsmentioning

confidence: 93%

“…The details of severe rolling technique were described in our previous report [18]. The microstructures of BNII were characterized with a Philips CM200 transmission electron microscope operated at 200 kV and X-ray diffraction (XRD).…”

Section: Methodsmentioning

confidence: 99%

The Linear Thermal Expansion of Bulk Nanocrystalline Ingot Iron from Liquid Nitrogen to 300 K

et al. 2009

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The linear thermal expansions (LTE) of bulk nanocrystalline ingot iron (BNII) at six directions on rolling plane and conventional polycrystalline ingot iron (CPII) at one direction were measured from liquid nitrogen temperature to 300 K. Although the volume fraction of grain boundary and residual strain of BNII are larger than those of CPII, LTE of BNII at the six measurement directions were less than those of CPII. This phenomenon could be explained with Morse potential function and the crystalline structure of metals. Our LTE results ruled out that the grain boundary and residual strain of BNII did much contribution to its thermal expansion. The higher interaction potential energy of atoms, the less partial derivative of interaction potential energy with respect to temperature T and the porosity free at the grain boundary of BNII resulted in less LTE in comparison with CPII from liquid nitrogen temperature to 300 K. The higher LTE of many bulk nanocrystalline materials resulted from the porosity at their grain boundaries. However, many authors attributed the higher LTE of many nanocrystalline metal materials to their higher volume fraction of grain boundaries.

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Preparation and Electrochemical Corrosion Behavior of Bulk Nanocrystalline Ingot Iron in HCl Acid Solution

Cited by 70 publications

References 21 publications

<i>In Vitro</i> Corrosion and Haemocompatibility of Bulk Nanocrystalline 304 Stainless Steel by Severe Rolling

<i>In Vitro</i> Corrosion and Haemocompatibility of Bulk Nanocrystalline 304 Stainless Steel by Severe Rolling

Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel

The Linear Thermal Expansion of Bulk Nanocrystalline Ingot Iron from Liquid Nitrogen to 300 K

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