Determination of niobium in nickel superalloys containing up to 30 wt% molybdenum

Goundobin N.V., Titov V.I., Pilipenko L.V.
UDC
669.293:669.245
DOI
10.18577/2307-6046-2015-0-7-5-5
Article PDF (Russian) (426.97 KB)
How to cite
Goundobin N.V., Titov V.I., Pilipenko L.V. Determination of niobium in nickel superalloys containing up to 30 wt% molybdenum // Proceedings of VIAM. 2015. No. 7. DOI: 10.18577/2307-6046-2015-0-7-5-5. URL: https://test.viam.ru/en/journal/2015/7/5
Abstract

One of the difficult-defined number of alloying elements in high-temperature nickel alloys, while alloys in the presence of interfering elements molybdenum, tantalum, zir-conium, hafnium, et al. Is niobium. Creation of a new series of heat-resistant nickel alloys (ZHNS) for gas turbine engines (GTE) for the latest generation of power plants with cooling vanes, allowing to increase the temperature of the gas to 2100–2200 К, requires the development of new technologies for the production of the required alloys and semi-finished products, allowing to solve tasks. In order to control the content of niobium in these heat-resistant nickel alloys developed a method for determination of niobium in the concentration range of 1–15% by weight. alloys at a content of up to 30% by weight. Molybdenum spectrophotometric method with a reagent piridilazorezortsinom.

Reference list
  1. Kablov E.N., Petrushin N.V., Svetlov I.L., Demonis I.M. Nikelevye litejnye zharoprochnye splavy novogo pokolenija [Nickel foundry hot strength alloys of new generation] //Aviacionnye materialy i tehnologii. 2012. №S. S. 36–52.
  2. Kablov E.N. Innovacionnye razrabotki FGUP «VIAM» GNC RF po realizacii «Strategicheskih napravlenij razvitija materialov i tehnologij ih pererabotki na period do 2030 goda» [Innovative development of VIAM Federal State Unitary Enterprise of GNTs Russian Federation on implementation «The strategic directions of development of materials and technologies of their processing for the period to 2030»] //Aviacionnye materialy i tehnologii. 2015. №1 (34). S. 3–33.
  3. Kablov E.N., Sidorov V.V., Kablov D.E., Rigin V.E., Gorjunov A.V. Sovremennye tehnologii poluchenija prutkovyh zagotovok iz litejnyh zharoprochnyh splavov novogo pokolenija [Modern technologies of receiving bar preparations from foundry hot strength alloys of new generation] //Aviacionnye materialy i tehnologii. 2012. №S. S. 97–105.
  4. Kablov E.N., Bondarenko Ju.A., Echin A.B., Surova V.A. Razvitie processa napravlennoj kristallizacii lopatok GTD iz zharoprochnyh splavov s monokristallicheskoj i kompozicionnoj strukturoj [Development of process of the directed crystallization of blades of GTD from hot strength alloys with single-crystal and composition structure] //Aviacionnye materialy i tehnologii. 2012. №1. S. 3–8.
  5. Lomberg B.S., Ovsepjan S.V., Bakradze M.M. Novyj zharoprochnyj nikelevyj splav dlja diskov gazoturbinnyh dvigatelej (GTD) i gazoturbinnyh ustanovok (GTU) [New heat resisting nickel alloy for disks of gas turbine engines (GTD) and gas turbine units (GTU)] //Materialovedenie. 2010. №7. S. 24–28.
  6. Mubojadzhjan S.A., Aleksandrov D.A., Gorlov D.S., Egorova L.P., Bulavinceva E.E. Zashhitnye i uprochnjajushhie ionno-plazmennye pokrytija dlja lopatok i drugih otvetstvennyh detalej kompressora GTD [Protective and strengthening ion-plasma coverings for blades and other responsible details of the GTD compressor] //Aviacionnye materialy i tehnologii. 2012. №S. S. 71–81.
  7. Kablov E.N., Mubojadzhjan S.A. Zharostojkie i teplozashhitnye pokrytija dlja lopatok turbiny vysokogo davlenija perspektivnyh GTD [Heat resisting and heat-protective coverings for turbine blades of high pressure of perspective GTD] //Aviacionnye materialy i tehnologii. 2012. №S. S. 60–70.
  8. Gibalo I.M. Analiticheskaja himija niobija i tantala [Analytical chemistry of niobium and tantalum]. M.: Nauka. 1967. 352 s.
  9. Elinson S.V. Spektrofotometrija niobija i tantala [Niobium and tantalum spectrophotometry]. M.: Atomizdat. 1973. 288 s.
  10. Gundobin N.V., Titov V.I., Pilipenko L.V., Dvoreckov R.M. Spektrofotometricheskoe opredelenie niobija v zharoprochnyh nikelevyh splavah, soderzhashhih tantal [Spectropho-tometric definition of niobium in the heat resisting nickel alloys containing tantalum] //Trudy VIAM. 2014. №8. St. 10 (viam-works.ru).
  11. Elinson S.V., Petrov K.I. Analiticheskaja himija cirkonija i gafnija [Analytical chemistry of zirconium and hafnium]. M.: Nauka. 1965. 267 s.