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铸钢在凝固区的流变行为

林家骝 , 朱世根 , 于震宗

金属学报

用自行设计的流变性能测定仪测量了624钢(32MnNiMoCu)在凝固区内的应力、应变关系。建立了该钢的流变模型、本构方程并确定了流变特性参数。为开展铸钢的应力、应变和热裂纹的计算机数值模拟提供了理论基础及计算数据。

关键词: 流变行为 , cast steel , solidification , rheology model , constitutive equation

RHEOLOGICAL BEHAVIOURS OF CAST STEEL DURING SOLIDIFICATION

LIN Jialiu ZHU Shigen YU Zhenzong Tsinghua University , Beijing , China

金属学报(英文版)

The stress-strain relation for cast low alloy carbon steel at solidification temperature has been examined by the authors' own desingned apparatus for rheological properties measurement.The rheology model,the stress-strain constitutive equation and the rheological parameters therefrom of the cast steel were proposed.Thus the theoretical basis and calcula- ting data for computerized s#nulation on the stress-strain relation and thermal cracking of the cast steel were suggested.

关键词: rheological behaviour , null , null , null , null

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