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首页> 外文期刊>Arabian Journal for Science and Engineering >Characterization of Graphite Flakes in Grey Iron Microstructure
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Characterization of Graphite Flakes in Grey Iron Microstructure

机译：灰铁组织中石墨薄片的表征

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摘要

Cast irons are important engineering materials which possess a wide range of attractive properties. Their properties are significantly dependent on the microstructure of the cast and cast iron components. A way of controlling the microstructure of cast iron is through the control of cooling rates during solidification. To control cooling rate, the heat storage capacity (HSC) of the mould is important. This paper presents the report of a study on the characteristic effects of graphite flake sizes on some mechanical properties of grey cast iron. Six mould materials with HSCs ranging from 1.52 to 2.16 kJ m~(-2) K~(-1) s~(-1/2) were prepared and used to cast some grey cast iron samples whose microstructures were observed by optical microscopy. Mechanical properties of the grey iron were evaluated. The results show that the properties increased with the HSC of the mould. In addition, the microstructures show a dependence on HSC of the mould.
机译：铸铁是重要的工程材料，具有广泛的吸引力。它们的性能很大程度上取决于铸铁和铸铁部件的微观结构。控制铸铁组织的一种方法是通过控制凝固过程中的冷却速率。为了控制冷却速度，模具的储热能力（HSC）很重要。本文提出了关于石墨鳞片尺寸对灰口铸铁某些力学性能的特性影响的研究报告。制备了六种HSC范围为1.52至2.16 kJ m〜（-2）K〜（-1）s〜（-1/2）的模具材料，并用于铸造一些灰口铸铁样品，通过光学显微镜观察其显微组织。评价了灰口铁的机械性能。结果表明，性能随模具的HSC而增加。另外，微观结构显示出对模具的HSC的依赖性。

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