| 高温扩散改变微孔隙形态的研究 |
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| 引用本文： | 毕庆霞,任运来,聂绍珉. 高温扩散改变微孔隙形态的研究[J]. 大型铸锻件, 2003, 0(2): 20-23 |
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| 作者姓名： | 毕庆霞 任运来 聂绍珉 |
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| 作者单位： | 燕山大学材料加工工程,河北,秦皇岛市,066004 |
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| 摘 要： | 从扩散的角度 ,研究了高温扩散改变微孔隙形态的机理 ,借鉴扩散焊接领域对扩散消除金属内部微孔隙的研究 ,建立微孔隙的物理模型 ,近而建立了微孔隙形态变化的扩散方程 ,并利用计算机编程求解 ,得到了高温扩散作用下微孔隙形态改变与温度、时间的关系。算例结果与实际生产工艺基本一致
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| 关 键 词： | 大锻件 扩散 微孔隙 |
| 修稿时间： | 2003-03-25 |
The Research of the Micro-hole Shape Changed by the High Temperature Diffusion |
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| Bi Qingxia Ren Yunlai Nie Shaomin. The Research of the Micro-hole Shape Changed by the High Temperature Diffusion[J]. Heavy Casting and Forging, 2003, 0(2): 20-23 |
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| Authors: | Bi Qingxia Ren Yunlai Nie Shaomin |
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| Affiliation: | Bi Qingxia Ren Yunlai Nie Shaomin |
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| Abstract: | The principle of the micro-hole shape changed by the high temperature diffusion has been researched in this paper with the concept of diffusion. With the study of the releasing micro-holes inside the metal by diffusion, the physical model of the micro-holes has been set up so that the diffusion equation for the variation of the micro-hole shape has been established as well, and with the explanation of the computer program, the relationship between temperature, time and the variation of the micro-hole shape under the condition of the high temperature diffusion are obtained. |
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| Keywords: | Heavy Forging Diffusion Micro-Hole |
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