In this work the possibility of simultaneous spectrophotometric determination of chromium (VI) and iron (III) in alloys with help of the mixed organic reagents (diphenylcarbazide and 1,10-phenanthroline, diphenylcarbazide and sulphosalicylic acid) is studied. We have applied curve fitting method to separate individual signals of chromium (VI) and iron (III) from overlapped absorption spectrum. ...

Abstract The strength of various variants the TiAlN coating and its analogues on iron surface is studied by using quantum chemistry methods. As a computer model, we consider system 5.5 atomic layers, 3 which imitate base (metallic iron), 2.5 layers coating. dependence chemical composition mutual arrangement atoms elements studied. It follows from calculations that optimal almost equal to pure i...

The upgrade recycling of cast-iron scrap chips towards β-FeSi₂ thermoelectric materials is proposed as an eco-friendly and cost-effective production process. By using scrap waste from the machining process of cast-iron components, the material cost to fabricate β-FeSi₂ is reduced and the industrial waste is recycled. In this study, β-FeSi₂ specimens obtained from cast iron scrap chips were prep...