本文以Gleeble-1500为实验手段,研究了ZG15CrMoV和35钢在500—1400℃温度范围内的力学行为,结果表明,两种钢在高温下表现出越来越强的时变特征,应用系统辨识理论,以实验数据作为系统的输入—输出响应,确立了两种钢在高温下的力学行为可以较好地由一个五元件流变模型[M]=[H_1]—[H_2/N_2]-[N_3/S]予以描述,通过研制的流变模型和参数辨识软件,对ZG15CrMoV和35钢在上述温度范围内的流变参数进行了辨识,辨识结果与实验结果均能较好的吻合。
Mechanical properties of steels ZG_(15)CrMoV and 35 in the temperature range of500--1400℃ have been investigated by means of Gleeble--1500. Taking experimental results asinput-output responses, a rheological model with 5 elements of the mechanical behaviour of thesteels at elevated temperatures may be determined by a system identification method. The identi-fied results are in fair agreement with the experimental ones.
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