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Effects of Temperature on Microstructure of CNTs/AZ31 Alloy Composites by Equal Channel Angular Pressing

Chao Luo

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Abstract

In order to obtain optimum temperature of carbon nanotubes/AZ31 alloy composites in equal channel angular pressing(ECAP) process,at various temperatures carbon nanotubes/AZ31 alloy composites were prepared by means of ECAP and in the die with the intersecting angle Φ= 90°.The results indicate that a great deal of ultra-fine grains appear in carbon nanotubes/AZ31 alloy composites just after one pass of ECAP at different temperatures.At 220℃ the sample surface is smooth,it is conducive to the realization of multi-pass of ECAP.At the same time,grain refinement is obtained better results.

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What this paper is about

In order to obtain optimum temperature of carbon nanotubes/AZ31 alloy composites in equal channel angular pressing(ECAP) process,at various temperatures carbon nanotubes/AZ31 alloy composites were prepared by means of ECAP and in the die with the intersecting angle Φ= 90°.The results indicate that a great deal of ultra-fine grains appear in carbon nanotubes/AZ31 alloy composites just after one pass of ECAP at different temperatures.At 220℃ the sample surface is smooth,it is conducive to the realization of multi-pass of ECAP.At the same time,grain refinement is obtained better results.

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Available abstract

In order to obtain optimum temperature of carbon nanotubes/AZ31 alloy composites in equal channel angular pressing(ECAP) process,at various temperatures carbon nanotubes/AZ31 alloy composites were prepared by means of ECAP and in the die with the intersecting angle Φ= 90°.The results indicate that a great deal of ultra-fine grains appear in carbon nanotubes/AZ31 alloy composites just after one pass of ECAP at different temperatures.At 220℃ the sample surface is smooth,it is conducive to the realization of multi-pass of ECAP.At the same time,grain refinement is obtained better results.

Key concepts: Materials science, Pressing, Alloy, Microstructure, Carbon nanotube, Composite material, Grain size, Carbon fibers

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