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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 6    No. 4    December 1996

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DETERMINATION OF MECHANICAL PROPERTIES IN MICROZONE OF METAL MATRIX COMPOSTITES BY ULTRAMICROHARDNESS
Chen Yu, Zhang Guoding

State Key Lab of MMCs, ShanghaiJiao Tong University, Shanghai200030

Abstract:Ultramicrohardness technique has been used to test the mechanical properties in the microzone of metal matrix composites. It is found that the ultramicrohardness can effectively reflect the variation of mechanical properties at the interface and the mechanical properties distribute unevenly in its microzone. It was also found that the mechanical properties in the microzone, as well as the macroscopic properties, are influenced by the distribution of fibers, the manufacture process and the heat treatment.

 

Key words: ultramicrohardness interface metal matrix composites residual stress

ISSN 1672-7029
CN 43-1423/U

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