Modifying effect of tungsten on vacuum condensates of iron

Laws of the structure formation, as well as the strength properties and thermal stability of vacuum condensates of the Fe-W system have been studied. It has been found that the alloying of iron foils with tungsten to 1 at % makes it possible to disperse the grained structure of the condensates to na...

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Bibliographic Details
Published in:Physics of metals and metallography 2015-07, Vol.116 (7), p.706-710
Main Authors: Barmin, A. E., Sobol’, O. V., Zubkov, A. I., Mal’tseva, L. A.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Condensates
Foils (structural shapes)
Hardness
Laws, regulations and rules
Materials Science
Mechanical properties
Metallic Materials
Nanostructure
Recrystallization
Strength
Strength and Plasticity
Structural steels
Tungsten
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Summary:Laws of the structure formation, as well as the strength properties and thermal stability of vacuum condensates of the Fe-W system have been studied. It has been found that the alloying of iron foils with tungsten to 1 at % makes it possible to disperse the grained structure of the condensates to nanometric dimensionality and to markedly enhance their strength properties and recrystallization temperature. Thus, the foils containing ∼0.8% tungsten and grains of about 50 nm in size exhibit the hardness 5.5 GPa and recrystallization temperature 800°C. These results can be used to devise compositions of the steels designed for subsequently obtaining high-strength and thermostable nanostructural states.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X15070017