Microstructure of NiCoAlFeCuCr multi-component systems synthesized by mechanical alloying |
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| Authors: | CD Gómez-Esparza RA Ochoa-Gamboa I Estrada-Guel JG Cabañas-Moreno JI Barajas-Villarruel A Arizmendi-Morquecho JM Herrera-Ramírez R Martínez-Sánchez |
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| Affiliation: | 1. Centro de Investigación en Materiales Avanzados S.C. (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes 120, C.P. 31109, Chihuahua, Chih., Mexico;2. Instituto Politécnico Nacional – CNMN, UPALM, CP 07338 México, D.F., Mexico;3. FCA-UASLP, Madero No. 849, Col Centro, C.P. 78000, San Luis Potosí, S.L.P., Mexico;4. Centro de Investigación en Materiales Avanzados S.C. (CIMAV), Unidad Mty, Autopista Monterrey-Aeropuerto Km 10, A. P. 43, C.P. 66600, Apodaca, N.L., Mexico;1. Applied Materials Physics, Department of Materials Science and Engineering, Royal Institute of Technology, Stockholm SE-100 44, Sweden;2. Institute for Applied Physics, University of Science and Technology Beijing, Beijing 100083, China;3. Wigner Research Centre for Physics, Institute for Solid State Physics and Optics, P.O. Box 49, H-1525 Budapest, Hungary;4. Department of Physics, Tsinghua University, Beijing 100084, China;5. Department of Physics and Astronomy, Division of Materials Theory, Uppsala University, Box 516, SE-751210 Uppsala, Sweden;1. Centro de Investigación en Materiales Avanzados (CIMAV), Chihuahua 31136, Mexico;2. Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Chihuahua 32310, Mexico;3. Universidad de Guadalajara, Jalisco 45100, Mexico;4. Universidad de la Salle Bajío, Guanajuato 37150, Mexico |
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| Abstract: | The present study uses the mechanical alloying method to produce series of binary to senary alloys based on Ni, Co, Al, Fe, Cu, Cr. Milling times are 0, 10, 20 and 30 h and experiments are performed in a high energy ball mill. The results of this investigation show that an FCC solid solution is formed in all the studied systems, but a different phase formation response is presented in each system. A mixture of FCC and BCC solid solutions in quaternary to senary systems, is formed for short milling times. Apparently, the dissolution rate of Fe and Cr into the FCC solid solution, is low. Moreover, it is observed that additions of these elements promote the formation of BCC solid solution, which is stable at temperatures up to ?1273 K. Finally, it is observed that the heat treated products present a mixture of FCC and BCC solid solutions with lattice parameters close to those found in the milled products. |
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