| TC11钛合金压气机盘闭模锻造过程中的缺陷预测 |
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| 引用本文： | 张海燕,;张士宏,;程明,;李臻熙,;曹春晓.TC11钛合金压气机盘闭模锻造过程中的缺陷预测[J].金属成形工艺,2009(1):62-65. |
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| 作者姓名： | 张海燕 ;张士宏 ;程明 ;李臻熙 ;曹春晓 |
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| 作者单位： | [1]中国科学院金属研究所,沈阳110016; [2]北京航空材料研究院,北京100095 |
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| 摘 要： | TC11钛合金压气机盘在实际生产中存在各种缺陷，降低了压气机盘的使用性能。将基于试验数据建立的TC11钛合金高温塑性变形时的延性损伤演化模型以及本构模型与有限元相结合，对某TC11钛合金压气机盘等温闭模锻造过程中的温度、等效应变和损伤变量的分布进行了数值分析，同时预测了塑性失稳区的位置。为优化其成形工艺提供了一种有效的方法。
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| 关 键 词： | 钛合金 压气机盘 损伤模型 缺陷 数值分析 |
Prediction of Defects During Closed Die Forging of TC11 Alloy Compressor Disks |
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| Affiliation: | ZHANG Hai-yan , ZHANG Shi-hong , CHENG Ming ,LI Zhen-xi , CAO Chun-xiao (1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; 2. Beijing Institute of Aeronautical Materials, Beijing 100095, China) |
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| Abstract: | There are some defects in the actual forging of TC11 alloy compressor disks, which decreases the performance of the compressor disks. In this paper, a ductile damage evolution model and a constitutive model for TC11 alloy during high temperature deformation developed based on the data from experiments were coupled with a FE simulator. Furthermore, the distributions of temperature, equivalent strain and damage value of TC11 alloy compressor disk during closed die forging were simulated and analyzed, and the plastic instability areas were predicted. It has provided an effective method to optimize the forging process of TC11 alloy compressor disks. |
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| Keywords: | titanium alloy compressor disk damage model defect numerical analysis |
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