| 镍基合金圆柱形热模拟试样热变形后鼓形的有限元研究 |
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| 引用本文： | 袁向前,张贤锴,时旭,孔伟,焦四海.镍基合金圆柱形热模拟试样热变形后鼓形的有限元研究[J].宝钢技术,2010(5):38-41. |
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| 作者姓名： | 袁向前 张贤锴 时旭 孔伟 焦四海 |
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| 作者单位： | 宝山钢铁股份有限公司研究院,上海,201900;宝山钢铁股份有限公司厚板厂,上海,201900 |
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| 摘 要： | 通过abaqus有限元分析软件,对镍基合金圆柱形热模拟试样在加热和保温后的单向压缩变形过程进行了模拟。研究结果表明,由于镍基合金材料导热系数较小,在快速变形条件下,试样在单向压缩过程中产生的变形热不能充分扩散,从而导致变形后试样内部局部温度升高。通过与热模拟试样变形后鼓形的实测值进行比较,结果均表明,变形后试样的鼓形随着应变速率的提高而增大。
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| 关 键 词： | 有限元 数值计算 热模拟 镍基合金 鼓形 |
Research on Drum-type Deformation in Cylindrical Ni-based Alloy Samples by Finite Element Analysis |
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| YUAN Xiangqian,ZHANG Xiankai,SHI Xu,KONG Wei,JIAO Sihai.Research on Drum-type Deformation in Cylindrical Ni-based Alloy Samples by Finite Element Analysis[J].Baosteel Technology,2010(5):38-41. |
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| Authors: | YUAN Xiangqian ZHANG Xiankai SHI Xu KONG Wei JIAO Sihai |
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| Affiliation: | 1(1.Research Institute; 2.Heavy Plate Plant; Baoshan Iron & Steel Co.; Ltd.; Shanghai 201900; China); |
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| Abstract: | With the abaqus finite element analysis software,the axial compression of Ni-based alloy samples after being heated and tempered is simulated. The results show that with a rapid deformation rate,the heat produced by deformation can not diffuse sufficiently in the sample due to the small conductivity factor of Ni-based alloy. It results in nonuniform higher temperature inside the sample. By comparing the calculated and measured drum-type values,a conclusion can be obtained that the drum-type value goes up wi... |
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| Keywords: | finite element numerical calculation thermal simulation Ni-based alloy drum-type |
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