Effect of Solute Addition on the Formation of Vacancy Condensation Pits
Effect of Solute Addition on the Formation of Vacancy Condensation Pits
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溶质添加对空位凝聚坑形成的影响
DOI：
10.1063/1.1660191
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发表时间：
1971
影响因子：
3.2
通讯作者：
B. Ramaswami
中科院分区：
文献类型：
--
作者：
B. Tariyal;B. Ramaswami
研究了铝中合金元素对点蚀现象的影响。这表明合金元素将影响：（1）空位过饱和，（2）空位的迁移能;和（3）氧化物-金属界面的性质。研究发现，溶质添加对孔蚀形成的影响主要有四种类型。(a)未观察到凹坑（Al-1.05%Mg合金）。(b)Al-1.07% Zn合金和Al-0.57% Cu合金的点蚀发生时的ΔT大于纯铝，且ΔT随保温温度的升高而减小。(c)点蚀出现的ΔT大于纯铝，且ΔT不遵循任何规律性趋势（Al-0.0045%Sn合金）。(d)在Al-0.96%Sn合金表面没有观察到凹坑，但出现了波纹结构。
The effect of alloying elements in aluminum on the phenomenon of pit formation has been studied. It is suggested that alloying elements will affect; (1) the vacancy supersaturation, (2) the migration energy of the vacancies; and (3) the nature of the oxide‐metal interface. It was found that there are four main types of effects of solute addition on the formation of pits. (a) Pits are not observed (Al–1.05% Mg alloy). (b) Pits appear with a larger ΔT than for pure aluminum, and ΔT decreases with increasing holding temperature (Al–1.07% Zn alloy and Al–0.57% Cu alloy). (c) Pits appear with a larger ΔT than that for pure aluminum and ΔT does not follow any regular trend (Al–0.0045% Sn alloy). (d) Pits are not observed, but a rippled structure appears on the surface of the specimen (Al–0.96% Sn alloy).