| Fe—P与Fe—P—Ce合金中的晶界磷偏聚及其对脆性的影响 |
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| 引用本文： | 张东彬,吴承建,杨让.Fe—P与Fe—P—Ce合金中的晶界磷偏聚及其对脆性的影响[J].金属学报,1991,27(2):33-36. |
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| 作者姓名： | 张东彬 吴承建 杨让 |
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| 作者单位： | 北京科技大学材料科学与工程系，北京科技大学，北京科技大学 讲师 北京(100083) |
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| 摘 要： | 用XPS,AES及系列冲击试验等方法对含磷0.032—0.22wt％的Fe-P和Fe-P-Ce合金中晶界偏聚磷的存在状态、偏聚特点及对脆性的影响进行了研究。结果表明,晶界上磷的存在状态与其偏聚量有关。当偏聚量较低时,为固溶态,且Ce的影响很小,而当偏聚量较高时,其存在状态改变,且Ce的影响显著。
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| 关 键 词： | P Ce Fe－P－Ce合金 晶界偏聚 脆性 |
| 收稿时间： | 1991-02-18 |
| 修稿时间： | 1991-02-18 |
GRAIN BOUNDARY SEGREGATION OF P IN Fe-P AND Fe-P-Ce ALLOYS AND EFFECT ON THEIR BRITTLENESS |
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| ZHANG Dongbin,WU Chengjian,YANG Rang University of Sciencs and Technology Beijing.GRAIN BOUNDARY SEGREGATION OF P IN Fe-P AND Fe-P-Ce ALLOYS AND EFFECT ON THEIR BRITTLENESS[J].Acta Metallurgica Sinica,1991,27(2):33-36. |
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| Authors: | ZHANG Dongbin WU Chengjian YANG Rang University of Sciencs and Technology Beijing |
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| Affiliation: | ZHANG Dongbin;WU Chengjian;YANG Rang University of Sciencs and Technology Beijing |
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| Abstract: | The equilibrium grain boundary segregation of P in Fe-P and Fe-P-Ce
alloys, containing 0.032--0.22 wt-% P, was studied by XPS, AES and series impact
test. The chemical state of P segregated at grain boundaries is found to be dependent
on its amount of segregation. When the amount is less, it is of solid solution state
and the Ce has slight influence, When the amount is more, its existing state
changes and the effect of Ce becomes quite notable. |
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| Keywords: | grain boundary segregation Fe-P-Ce alloy P Ce brittleness |
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