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according to Hall-Petch relation, microhardness variations in each side can be well correlated with the change in grain size along the thickness direction. Õâ¾ä»°ÊDz»ÊÇÌ«ÂÞàÂÁË£¬ÔõôÑù²ÅÄܼò½àµã£¬Âé·³´ó¼ÒÁË |
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nono2009
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