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首页> 外文期刊>Journal of Materials Science >The effect of strontium (Sr) on the ignition temperature of magnesium (Mg): A look at the pre-ignition stage of Mg-6 wt% Sr
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The effect of strontium (Sr) on the ignition temperature of magnesium (Mg): A look at the pre-ignition stage of Mg-6 wt% Sr

机译:锶(Sr)对镁(Mg)着火温度的影响:看Mg-6 wt%Sr的点火前阶段

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摘要

The effect of strontium (Sr) addition on the ignition and oxidation behavior of magnesium has been investigated. Continuous heating experiments carried out in dry air-flow reveal that the ignition temperature (T i) is raised from 640 C (of pure Mg) to up to 854 C at 6 wt% Sr addition. The oxidation behavior of Sr containing alloys was investigated during (i) isothermal oxidation experiments above the liquidus temperature (~640 C) and (ii) during pre-ignition heating to 700 C. The change in the ignition temperature of various alloy compositions is related to the amount of Sr that can be segregated to the surface and to the activity of the elements in the surface in the stages prior to ignition.
机译:研究了锶(Sr)对镁着火和氧化行为的影响。在干燥气流中进行的连续加热实验表明,在添加6 wt%Sr的情况下,着火温度(Ti)从640 C(纯Mg)提高到854C。在(i)液相线温度(〜640 C)以上的等温氧化实验和(ii)点火前加热到700°C的过程中,研究了含Sr合金的氧化行为。各种合金成分的着火温度变化与在点火之前的阶段中,Sr的含量可以隔离到表面,并且可以隔离到表面中元素的活性。

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