| 高温蠕变中晶界沉淀强化的一种唯象模型SCIEI |
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| 引用本文： | 李培恩,张俊善,金俊泽.高温蠕变中晶界沉淀强化的一种唯象模型SCIEI[J].金属学报,1990,26(4):50-53. |
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| 作者姓名： | 李培恩 张俊善 金俊泽 |
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| 作者单位： | 大连理工大学材料系，大连理工大学，大连理工大学 大连116024 |
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| 摘 要： | 本文在作者已建立的晶界析出强化模型的基础上进一步考虑了晶界碳化物密度的影响,把原模型发展为适用于碳化物的晶界覆盖率小于1的一般情况。经改进的模型能很好地预测晶界碳化物导致合金蠕变速率及其应力温度依赖性的变化。
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| 关 键 词： | 晶界 碳化物 蠕变 沉淀 唯象模型 intergranular carbide creep Fe-15Cr-25Ni alloy boundary obstacle stress |
| 收稿时间： | 1990-04-18 |
| 修稿时间： | 1990-04-18 |
A PHENOMENOLOGICAL MODEL FOR GRAIN BOUNDARY PRECIPITATION STRENGTHENING IN HIGH TEMPERATURE CREEP |
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| LI Peien,ZHANG Junshan,JIN Junze Dalian University of Technology.A PHENOMENOLOGICAL MODEL FOR GRAIN BOUNDARY PRECIPITATION STRENGTHENING IN HIGH TEMPERATURE CREEP[J].Acta Metallurgica Sinica,1990,26(4):50-53. |
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| Authors: | LI Peien ZHANG Junshan JIN Junze Dalian University of Technology |
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| Affiliation: | LI Peien,ZHANG Junshan,JIN Junze Dalian University of Technology Department of Materials Engineering,Dalian University of Technology,Dalian |
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| Abstract: | Considering the effect of intergranular carbides density, a modifiedmodel has been proposed to try to suit any common case of the fraction of theintergranular carbides to the total grain boundary less than 1, on the basis of theprevious model for the grain boundary precipitation strengthening. This modifiedmodel may be available to predict the changes in creep rate and its stress and tem-perature dependence of alloys by intergranular carbides. |
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| Keywords: | intergranular carbide creep Fe-15Cr-25Ni alloy boundary obstacle stress |
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