CNTs/Al Interfacial Reaction Degree and the Relationship with Mechanical Performance of Composite

The evolution of interfacial reaction degree with different sintering time of mass fraction 2% CNTs/5083Al composite was studied by the electrochemical dissolution-gas chromatography method. The relationship of interfacial reaction degree and mechanical performance was discussed. The results show that with sintering time increasing from 1 h to 6 h, interfacial reaction degree of 2%CNTs/5083Al composite increased from 5.5% to 24.1% and showed a certain linear relationship with sintering time when the composite was sintered at 570℃. Young's modulus, yield strength and tensile strength of the composite increased at first and then decreased, while the elongation decreased slightly at first and then increased continuously with the increase of sintering time.