| Autor: |
AMRI, A., BENLENDA, O., ZERROUK, L., RATTAL, M., IBNLFASSI, A., SAAD, E. |
| Předmět: |
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| Zdroj: |
Journal of Science & Arts; 2017, Vol. 17 Issue 1, p177-182, 6p |
| Abstrakt: |
Hastelloy C2000 is a superalloy used in the chemical processing, pollution control and waste treatment industries. This alloy contains a nominal amount of 52-60% of Ni, 15-31% of Cr, 9-16% of Mo, and small additions of other elements such as iron, copper, tungsten, etc. Its matrix is austenitic and its structure is face-centered cubic. The objective of our work is to study the structure of the Hastelloy C2000 and this by a heat treatment at four temperatures: 700 °C, 800 °C, 900 °C and 1000 °C with a prolonged maintenance at each temperature during three hours. The monitoring of the structure is performed by using the X-ray diffraction (XRD). The X-ray diffraction spectra obtained after the heat treatments, show the presence of peaks of the precipitates and the peaks of the austenite phase. For the crystallographic parameters of the mesh before and after the four heats treatments, we remark an increase of the parameter a and the volume of the mesh as a function of treatment temperature. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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