| Autor: |
BEN LENDA, O., SABIR, F., SAISSI, S., MARBOUH, K., ELHAMZI, S., ZERROUK, L., IBENLFASSI, A., BOULIF, R., SAAD, E. |
| Předmět: |
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| Zdroj: |
Journal of Science & Arts; Dec2015, Vol. 15 Issue 4, p351-362, 12p |
| Abstrakt: |
The superalloy BC1 (trademark of HAYNES International, Inc.) is an alloy used in the production processes of organic acids at high temperature, refining industry and a wide variety of chemical applications using hydrochloric and sulfuric acids. The HYBRID-BC1 is an alloy composed essentially of 62% of nickel, 22% of molybdenum and 15% of chromium. Its matrix is austenitic and its structure is face-centered cubic. The aim of this work is to study the influence of heat treatment on the structural and mechanical properties of the nickel based alloy. Indeed, four temperatures were chosen 700°C, 800°C, 900°C and 1000°C for a treatment time of 3 hours. The final hardness of the alloys treated at 700°C, 800°C, 900°C and 1000°C is equal respectively to 47.25 HRF, 47 HRF, 47 HRF and 47.5 HRF. The images obtained by optical microscopy after the iso-thermal treatments showed the presence of carbides at the joints and inside the grains in several morphologies, discontinuous transformations and eutectic precipitates. The X-ray diffraction spectra done during over aging consist of peaks of the austenite phase and precipitates. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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