Publication Date:
2018-11-07
Description:
A remelting method was used to recycle Al-15wt.% B 4 C composite and the microstructure and mechanical properties of the composite were investigated before and after recycling. Scanning electronic microscope (SEM) showed that some of the particle clusters present in the original composite were broken down and the distribution of B 4 C in the matrix was more uniform after recycling. The interface reaction was further intensified and the protection layer coated on the surface of B 4 C was thicker after recycling. In addition, there were more TiB 2 particles which peeled off from the surface of B 4 C and distributed around B 4 C. Al 3 Ti phase, which was present in the original composite, disappeared after recycling, while Al 3 BC phase increased markedly. Tensile test and hardness test revealed that the mechanical properties were preserved well after recycling. Therefore, it is proposed that remelting method ...
Print ISSN:
1757-8981
Electronic ISSN:
1757-899X
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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