PA N JinChangsha Institute of Technology
,
ChinaLI Jihong
,
NING Xiaoguang
,
YE HengqiangLab. of Atomic Imaging of Solids
,
Institute of Metal Research
,
Chinese Academy of Sciences. Shenyang
,
China Manuscript received 28 February
,
1994
金属学报(英文版)
A newly developed whisker K_(2)O 6TiO_(2) reinforced 6061 Al composite was prepared by squeeze casting process. The flexural strength of the composite is 518MPa, and decreases to 490 M Pa after T6 treatment.The hardness of the composite also shows the similar change while T6 treating. The results of HRTEMobservation may explaine this property change. It was considered that there is a continuous TiO layer at the whisker-matrix interface, which is easily to react with the segregated Mg and to form MgTi_(2)O_(4), MgAl_(2)O_(4). The thickening of TiO layer after T6 treatment is the main reason resulting in strength degradation of composite.
关键词:
potassium titanate. whisker
,
null
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null
