期刊
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
卷 211, 期 10, 页码 1614-1619出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2011.04.015
关键词
A356; Surface nanocomposite; Friction stir processing; Nanoindentation
A356/Al2O3 surface nanocomposite was produced by friction stir processing (FSP) method. X-ray diffractometery, optical and scanning electron microscopy, microhardness and nanoindentation tests were used to characterize the samples. The results indicated that the uniform distribution of Al2O3 particles in A356 matrix by FSP process can improve the mechanical properties of specimens. The hardness and elastic modulus of the as-received A356, the sample treated by the FSP without Al2O3 particles, surface micro-and nanocomposite specimens were about 75 Hv and 74 GPa, 69 Hv and 73 GPa, 90 Hv and 81 GPa, 110 Fly and 86 GPa, respectively. (C) 2011 Elsevier B.V. All rights reserved.
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