| 摘要 |
PURPOSE: A pressure cell structure for a pressing process and a control method of a steel microstructure using thereof are provided to control to a desired micro-structure and a physical property in a case of having a low hardenability such as a low-carbon steel. CONSTITUTION: A pressure cell comprises a pressure transmission layer (110), a melting layer (120), and an impurity barrier layer (130). An outer shape is comprised of the pressure transmission layer. The melting layer corresponds to an outer shape of the pressure transmission layer, and is positioned inside the pressure transmission layer. The impurity barrier layer corresponds to an outer shape of the melting layer, and is positioned inside the melting layer. An object material is accommodated inside the impurity barrier layer. The pressure transmission layer comprises graphite, pyrophyllite, and a magnesium oxide, or a ziconium oxide. |
