An optimization method of upsetting process for homogenized, nickel-based superalloy Udimet 720Li ingot considering both cracking and recrystallization
An optimization method of upsetting process for homogenized, nickel-based superalloy Udimet 720Li ingot considering both cracking and recrystallization
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考虑裂纹和再结晶的均质镍基高温合金Udimet 720Li铸锭镦锻工艺优化方法
DOI：
10.1016/j.jmatprotec.2019.01.013
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发表时间：
2019-07
期刊：
影响因子：
--
通讯作者：
Jianxin Dong
中科院分区：
文献类型：
--
作者：
Haiyan Fan;He Jiang;Jianxin Dong
分别利用1070-1220 °C高温拉伸试验和1130-1190 °C热压缩试验，研究了均匀化Udimet 720 Li的断裂预测模型和动态再结晶（DRX）模型。使用有限元法（FEM）的模型的准确性进行了验证。此外，FORTRAN语言被用来编程更新到Deform-3D软件，以有效地说明双锥压缩模拟中的断裂预测模型和DRX模型。计算结果与试验结果吻合较好，表明了模型的可靠性和可行性。利用这两个模型，提出了一种优化方法，该方法可以确定U 720 Li均质化镦粗过程中以无裂纹、高动态再结晶率和细小动态再结晶晶粒为目标的理想镦粗窗口。
The fracture prediction model and dynamic recrystallization (DRX) model for homogenized Udimet 720Li are investigated utilizing high temperature tensile tests in a temperature range of 1070–1220 °C and hot compression tests in a temperature range of 1130–1190 °C, respectively. The accuracy of the models is verified using the finite element method (FEM). Furthermore, the FORTRAN language is used to program updates into the Deform-3D software in order to effectively illustrate the fracture prediction model and the DRX model in the double-cone compression simulation. The calculated cracking and microstructural results conform well to experimental ones, which indicates the reliability and feasibility of the models. With the two models, an optimization method is put forward which can determine a perfect upsetting window in the aim of no cracks, high fraction of DRX and fine DRX grains for homogenized U720Li during the upsetting process.
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DOI：
10.1016/s0921-5093(98)00867-3
发表时间：
1999-01-15
影响因子：
6.4
作者：
Jackson, MP;Reed, RC
通讯作者：
Reed, RC
DOI：
10.1115/1.3439471
发表时间：
1979-01-01
期刊：
JOURNAL OF ENGINEERING FOR INDUSTRY-TRANSACTIONS OF THE ASME
影响因子：
--
作者：
OH, SI;CHEN, CC;KOBAYASHI, S
通讯作者：
KOBAYASHI, S
影响因子：
6.3
作者：
Zuoyi Kang;T. Bui;D. Nguyen;S. Hirose
通讯作者：
Zuoyi Kang;T. Bui;D. Nguyen;S. Hirose
影响因子：
8.4
作者：
Jiang, He;Yang, Liang;Yao, Zhihao
通讯作者：
Yao, Zhihao
影响因子：
6
作者：
Billot, T.;Villechaise, P.;Mendez, J.
通讯作者：
Mendez, J.