Effect of heat treatment on Fe-B-Si-Nb alloy powder prepared by mechanical alloying
| Autor: | Rodinei Medeiros Gomes, Rodrigo Estevam Coelho, Severino Jackson Guedes de Lima |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Materials science
crystallization Silicon Alloy Niobium chemistry.chemical_element engineering.material mechanical alloying law.invention chemistry.chemical_compound Tungsten carbide law Differential thermal analysis lcsh:TA401-492 General Materials Science Crystallization Boron Ball mill Mechanical Engineering Metallurgy Condensed Matter Physics chemistry FeBSiNb powder Mechanics of Materials engineering lcsh:Materials of engineering and construction. Mechanics of materials |
| Zdroj: | Materials Research, Vol 8, Iss 2, Pp 161-163 (2005) |
| ISSN: | 1516-1439 |
| DOI: | 10.1590/s1516-14392005000200012 |
| Popis: | The effect of heat treatment on crystallization behavior of Fe73.5B15Si10Nb1.5 alloy powder prepared by mechanical alloying was studied. The powder samples were prepared by mechanical alloying (MA) and for different milling times (1, 5, 25, 70 and 100 hours). Crystalline powders of iron, boron, silicon and niobium were sealed with tungsten carbide balls in a cylindrical vial under nitrogen atmosphere. The ball-to-powder weight ratio was 20 to 1. A Fritsch Pulverizette 5 planetary ball mill was used for MA the powders at room temperature and at 250 rpm. To study the microstructural evolution, a small amount of powder was collected after different milling times and examined by X-ray diffraction, using CuKalpha radiation (lambda = 0.15418 nm). The crystallization behavior was studied by differential thermal analysis, from 25 up to 1000 °C at a heating rate of 25 °C min-1. |
| Databáze: | OpenAIRE |
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