| 铝镁合金点蚀试验数据的统计分析 |
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| 摘 要： | 在３．５％ＮａＣｌ溶液中，铝镁合金在充Ｎ２除Ｏ２条件下，阳极极化至电流密度为１０－２Ａ·ｃｍ－２时，试样表面出现大量蚀孔。为了得到蚀孔发生的统计规律，利用泊松概率分布函数求得腐蚀活性点出现个数的规律，利用古比极值统计第一类近似函数求得最深腐蚀孔深度的概率分布。统计分析得到满意的结果。对于大量的点蚀腐蚀数据都可以按此理论进行统计分析，价用来评价材料的耐点蚀性能和估算管线的使用寿命。
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| 关 键 词： | 点蚀孔，统计分析，概率分布函数 |
The Statistico-Analysis for the Bit Testing Data of the Al-Mg Alloy |
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| Xiao Heng,Li Jiuqing. The Statistico-Analysis for the Bit Testing Data of the Al-Mg Alloy[J]. Journal of University of Science and Technology Beijing, 1994, 0(Z1) |
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| Authors: | Xiao Heng Li Jiuqing |
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| Affiliation: | Dept.of Surface Science and Corrosion Engineering |
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| Abstract: | A great number of the bits have been made in the Al-Mg alloy by electrochmical method.The distribution function of the average density of the bits and the deeppest bits is set up by the statisticao analysis. |
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| Keywords: | bit statistico-analysis distribution function |
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