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Fine-grain strengthening mechanism and

its application

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Fine-grain strengthening mechanism and its

application

Abstract: polycrystal metal is usually composed of many grain, grain size can be used to represent the number of grain per unit volume, the more the number, grain is fine. Experiments show that the fine grained metal at room temperature than coarse grain metal has higher strength, hardness, plasticity and toughness . Therefore, in the practical use, people often use fine-grain strengthening method to increase mechanical properties of the metal.

Keywords: definition, fine-grain strengthening mechanism, refining grain essence new methods and ways, fine-grain strengthening

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