Physicomechanical properties of nickel-base composite materials with dispersed crystallizing glass particles. Part II
| Autor: | B. L. Rudoi, R. P. Shchegoleva, B. A. Borok, G. M. Matveev, M. Kh. Shorshorov |
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| Rok vydání: | 1974 |
| Předmět: |
Materials science
Metals and Alloys chemistry.chemical_element Atmospheric temperature range Condensed Matter Physics Silicate Thermal expansion chemistry.chemical_compound Nickel chemistry Mechanics of Materials Phase (matter) Materials Chemistry Ceramics and Composites Composite material Dispersion (chemistry) Ductility Chemical composition |
| Zdroj: | Soviet Powder Metallurgy and Metal Ceramics. 13:271-275 |
| ISSN: | 1573-9066 0038-5735 |
| DOI: | 10.1007/bf00796799 |
| Popis: | 1. With rise in the amount of dispersed phase, the hardness of a composite material increases and its ductility decreases, the actual extent of these changes depending upon the chemical composition of the silicate phase. 2. Tests have shown that, at 20°C, the short-time strength is a maximum for pure nickel, and falls with increase in dispersed-phase content. 3. In the test temperature range 20–400°C, a definite correlation is observed between the short-time strength of composite materials and the coefficient of linear thermal expansion of their dispersed silicate phases. In composites with dispersed phases having a low coefficient of thermal expansion, the strengthening effect is more pronounced. 4. A nickel-base composite material containing dispersed silicate phase I possesses the best operating characteristics at 800°C. With decrease in the degree of dispersion of the strengthening phase, the mechanical properties of the material improve. |
| Databáze: | OpenAIRE |
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