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RMS Strain 〈ε〉½ Variation Vs Grain Refining During Annealing of Co50Ti50 Synthesized By AM-SPS

Published online by Cambridge University Press:  02 July 2020

R. Martínez-Sánchez ,
L. Béjar-Gómez ,
F. Espinosa-Magaña ,
J.G. Cabañas-Moreno ,
A. Duarte Moller  and
S. Diaz de la Torre
R. Martínez-Sánchez
Affiliation:
Centro de Investigatión en Materiales Avanzados (CIMAV), Miguel de Cervantes No. 120 C.P., 31110, Chihuahua, Chih., México.
L. Béjar-Gómez
Affiliation:
Centro de Investigatión en Materiales Avanzados (CIMAV), Miguel de Cervantes No. 120 C.P., 31110, Chihuahua, Chih., México.
F. Espinosa-Magaña
Affiliation:
Centro de Investigatión en Materiales Avanzados (CIMAV), Miguel de Cervantes No. 120 C.P., 31110, Chihuahua, Chih., México.
J.G. Cabañas-Moreno
Affiliation:
Instituto Politécnico Nacional, ESFM, Apdo. Postal 75-373, C.P. 07300, México, D.F., México.
A. Duarte Moller
Affiliation:
Centro de Investigatión en Materiales Avanzados (CIMAV), Miguel de Cervantes No. 120 C.P., 31110, Chihuahua, Chih., México.
S. Diaz de la Torre
Affiliation:
Centro de Investigatión en Materiales Avanzados (CIMAV), Miguel de Cervantes No. 120 C.P., 31110, Chihuahua, Chih., México.
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Abstract

The mechanical alloying (MA) process has been probed to be an effective method to conveniently develop materials with novel structures. The products of MA can be processed by conventional powder metallurgy routes for further consolidation. However, the novel features conferred to the powders, such as fine crystal size and chemical homogeneity can be lost during sintering operations, due to the high chemical activity of some of the synthesized phases. The Spark Plasma Sintering (SPS) process is an alternative route to obtain highly dense MA′ed products while retaining these novel microstructures, including a metastable state. Advantages of the SPS process over conventional sintering processes are the fast heating and cooling rates, and the high pressure applied. Combining these two material processing techniques (MA and SPS) it is possible to obtain materials with interesting (far from equilibrium) microstructures. Co-Ti alloys were obtained by MA and SPS, as described in related publications.

Type
Metals and Alloys
Information
Microscopy and Microanalysis , Volume 7 , Issue S2: Proceedings: Microscopy & Microanalysis 2001, Microscopy Society of America 59th Annual Meeting, Microbeam Analysis Society 35th Annual Meeting, Long Beach, California August 5-9, 2001 , August 2001 , pp. 1270 - 1271
Copyright
Copyright © Microscopy Society of America 2001

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References

references

l.Cabañas-Moreno, -J.G.et al., Mat. Sci. Forum, Vols. 225-227, pp. 435–440, 1996.Google Scholar
2.Martínez-Sánchez, -R.et al., Mat. Sci. and Eng A, Vol. 228, pp. 37–40, 1997Google Scholar