Determination of nickel in finished product alloys by instrumental neutron activation analysis and spectrophotometry

Acharya, R.; Kolay, Siddhartha; Reddy, Α. V. R.

doi:10.1007/s10967-012-1616-2

Cited by 11 publications

(8 citation statements)

References 15 publications

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“…Esse tipo de abordagem pode ser utilizado na determinação de elementos maiores, menores e traços em ligas de níquel e ferro. [80][81][82][83][84] Além da determinação de composição de ligas de ferro, aço e ferrosilício, estudos de interferência de elementos usualmente presentes nesses materiais também foram realizados por Moreira et al 85 É interessante observar que interferências de Cr em Ti e V, Co em Mn e Mn em V e Fe, materiais sempre presentes em aços, puderam ser quantificadas e teores de 21 elementos foram determinados com erros inferiores a 10%. Dentre esses elementos, estão alguns dificilmente quantificados por outras técnicas, como U, Th e terras raras.…”

Section: Métodos De Ativação Neutrônicaunclassified

A Brief Overview of Metal Analysis in Alloys and Related Matrices: Some Classical Methods and Modern Spectroscopic Methods

Da-Col¹

2014

Revista Virtual De Química

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Industrial processes require materials with controlled properties, such as metals and alloys, which are obtained from a combination of metals and other species. The steel production in Brazil in 2013, e.g., was over 34 million tons. This importance reflects in standardized methods of analysis, such as ABNT and ASTM. Some of these methods are classical methods (gravimetric and volumetric) or instrumental and their choice depend on the analyte, the amount of sample, other interferences and cost. This text is a brief overview of recommended methods and those who bring innovations to metal analysis.

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Section: Métodos De Ativação Neutrônicaunclassified

A Brief Overview of Metal Analysis in Alloys and Related Matrices: Some Classical Methods and Modern Spectroscopic Methods

Da-Col¹

2014

Revista Virtual De Química

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“…Several analytical techniques are applied in elemental analyses of metallic alloys, such as atomic absorption spectrometry (AAS) 7 , inductively coupled plasma atomic emission spectrometry (ICP-AES) 8 , UV-Visible spectrophotometry 9 and neutron activation analysis (NAA) [9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

A study on corrosion resistance of ISO 5832-1 austenitic stainless steel used as orthopedic implant

Braguin¹,

Silva²,

Berbel³

et al. 2021

IJAMB

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The ISO 5832-1 austenitic stainless steel used as biomaterial is largely applied in the area of orthopedics, especially in the manufacture of implants, such as temporary or permanent replacement of bone structures. The objective of this study was to evaluate the localized corrosion resistance of the ISO 5832-1 stainless steel used in orthopedic implants by electrochemical tests in two different solutions. The results of this study are of great interest to evaluate the corrosion of metallic implants that can result in the release of corrosion products into bodily fluids causing possible adverse biological reactions. The determination of the chemical elements in the composition of the ISO 5832-1 stainless steel was performed by neutron activation analysis (NAA). The samples for electrochemical tests were grinded with silicon carbide paper up to #4000 finishing, followed by mechanical polishing with diamond paste. The open circuit potential measurements and anodic polarization curves were obtained in solution of 0.90 wt. % of NaCl and of simulated body fluid (SBF). The results indicated that the ISO 5832-1 stainless steel presented a high resistance to crevice corrosion in simulated body fluid solution but high susceptibility to this form of corrosion in the chloride solution.

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“…For elemental analyses in metallic alloys, several analytical techniques have been used, such as inductively coupled plasma atomic emission spectrometry (ICP-AES) [5], atomic absorption spectrometry (AAS) [6], anodic stripping voltammetry [7], UV-Visible spectrophotometry [8] and neutron activation analysis (NAA) [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Elemental determination of austenitic stainless steel alloy used as biomaterial by neutron activation analysis

et al. 2021

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Austenitic stainless steel alloys, mainly those produced according to ISO 5832-1, have received much attention due to their promising characteristics to be used as biomaterials. The aim of this study was to establish the proper conditions of neutron activation analysis (NAA) in order to determine chemical elements in a sample of ISO 5832-1 stainless steel. These determinations are of great interest for further evaluation of its corrosion resistance and of cytotoxicity of corrosion products. For the analyses, chips of ISO 5832-1 austenitic stainless steel were obtained. Aliquots of this material were weighed in polyethylene involucres and irradiated together with synthetic element standards at the IEA-R1 nuclear research reactor. Short and long irradiations were carried out using thermal neutron flux of about 4.5 x 1012 n cm-2 s-1. Quality control of the results was performed by analyzing two certified reference materials (CRMs). The elements concentrations of Cr, Cu, Mn, Mo and Ni obtained in the ISO 5832-1 austenitic alloy are within the specification values of this material. Besides, the elements As, Co, V and W were determined in this alloy. The sensitivity of the technique was verified by the determination of detection and quantification limits. In the case of CRMs, their results presented precision and accuracy for most of elements with relative standard deviations and relative errors lower than 15 %. Results obtained in this study demonstrated the viability of applying NAA in the analysis of the ISO 5832-1 stainless steel alloy.

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Determination of nickel in finished product alloys by instrumental neutron activation analysis and spectrophotometry

Cited by 11 publications

References 15 publications

A Brief Overview of Metal Analysis in Alloys and Related Matrices: Some Classical Methods and Modern Spectroscopic Methods

A Brief Overview of Metal Analysis in Alloys and Related Matrices: Some Classical Methods and Modern Spectroscopic Methods

A study on corrosion resistance of ISO 5832-1 austenitic stainless steel used as orthopedic implant

Elemental determination of austenitic stainless steel alloy used as biomaterial by neutron activation analysis

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