Microstructure and phase composition of the niobium-zirconium-carbon alloy system
Description
Structure and phase composition of two groups of alloys in the system Nb-Cr-C are investigated. The first alloy group contains 0.12+-0.03 mass% carbon, 0.9-2.2 mass% zirconium; the second, 0.23+-0.03 mass% carbon, 1.0-3.4 mass% zirconium. The alloy phase compositions are studied using microstructural analysis and also X-ray structural phase analysis of electrochemical deposits. The phase percentages are controlled by zirconium and carbon concentration, and alloy condition. In cast alloys, an increase in zirconium concentration (at the same carbon concentration) results in an increasing amount of the phase (Nb,Zr)C and coarsening of its precipitates. Meanwhile, the amount of the phase Nb2C is reduced. Depletion in Nb2C occurs during working and heat treatment
Additional details
Additional titles
- Original title (Russian)
- Микроструктура и фазовый состав сплавов системы ниобий-цирконий-углерод
Publishing Information
- Imprint Title
- Rare metals alloy
- Imprint Pagination
- p. 28-35.
- Journal Volume
- 67
- Series
- Nauchnye trudy GIREDMETa.
- Report number
- INIS-mf--3839
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 9367260
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANNEALING; CARBON ADDITIONS; ETCHING; MICROSTRUCTURE; NIOBIUM BASE ALLOYS; NIOBIUM CARBIDES; PHASE STUDIES; QUANTITY RATIO; SOLID SOLUTIONS; STRUCTURAL CHEMICAL ANALYSIS; TERNARY ALLOY SYSTEMS; X-RAY DIFFRACTION; ZIRCONIUM ALLOYS; ZIRCONIUM CARBIDES
- Descriptors DEC
- ALLOY SYSTEMS; ALLOYS; CARBIDES; CARBON COMPOUNDS; COHERENT SCATTERING; CRYSTAL STRUCTURE; DIFFRACTION; DISPERSIONS; HEAT TREATMENTS; HOMOGENEOUS MIXTURES; MIXTURES; NIOBIUM ALLOYS; NIOBIUM COMPOUNDS; SCATTERING; SOLUTIONS; SURFACE FINISHING; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS
Optional Information
- Notes
- 4 refs.; 2 figs. Imprint:Splavy redkikh metallov.