陈学文,王纳纳,皇涛,陈拂晓,宋克兴

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心

摘要(Abstract)：

采用Gleeble-1500D试验机对X12钢进行热压缩试验,应变速率范围为0.05~5 s-1,变形温度范围为950~1200℃,研究其高温成形工艺,分析变形温度、应变速率等对流变应力的影响,在考虑应变对材料常数影响的基础上,建立了X12材料基于应变补偿的Arrhenius本构模型,并对所建立的本构模型进行验证。结果表明:随着变形温度的升高或应变速率的降低,真应力和峰值应力逐渐减小;修正后的Arrhenius本构模型能够很好的预测X12钢的流动应力,该模型具有良好的准确性和可靠性。

关键词(KeyWords)： 超超临界转子;X12钢;应变补偿;本构模型

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51575162);; 河南省自然科学基金(162300410085)

作者(Author): 陈学文,王纳纳,皇涛,陈拂晓,宋克兴

DOI: 10.13289/j.issn.1009-6264.2017-0566

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