Corrosion of steels in molten gallium (Ga), tin (Sn) and tin lithium alloy (Sn–20Li)

Corrosion of steels in molten gallium (Ga), tin (Sn) and tin lithium alloy (Sn–20Li)
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钢在熔融镓 (Ga)、锡 (Sn) 和锡锂合金 (Sn–20Li) 中的腐蚀

DOI:
10.1016/j.fusengdes.2015.05.051
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发表时间:
2015
影响因子:
1.7
通讯作者:
T. Muroga
T. Muroga
中科院分区:
工程技术3区
文献类型:
--
作者:
M. Kondo;M. Ishii;T. Muroga

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通过静态腐蚀试验研究了钢在液态镓(Ga)、锡(Sn)和锡锂合金(Sn - 20li)中的相容性。对低活化铁素体马氏体钢JLF-1 (JOYO-HEAT, Fe-9Cr-2W-0.1C)和奥氏体钢SUS316 (Fe-18Cr-12Ni-2Mo)进行了腐蚀试验。试验温度为873 K,暴露时间为250和750 h。这些钢在液态Ga、Sn和Sn - 20li合金中的腐蚀通常是由反应层的形成和钢元素溶解到熔体中引起的。通过金相分析和相图分析,确定在液态Ga中形成的反应层为Fe3Ga。反应层在JLF-1钢表面的生长速率呈抛物线状,这一趋势表明,通过反应层的扩散过程可以控制腐蚀。在液态Sn和Sn - 20li中形成的反应层被鉴定为FeSn。生长速率与暴露时间呈线性关系。Sn和Sn - 20li的腐蚀可以通过界面反应来控制。在液态Sn和Sn - 20li中形成的层的生长速度比在液态Ga中缓慢得多。在Li池中去除附着的Sn-20Li后,测量JLF-1试样在Sn-20Li中浸泡750 h后的重量变化。失重量为1.42 × 103g/m3,是以往研究同等条件下液态铅锂合金(Pb-17Li)失重量的1500倍。
The compatibility of steels in liquid gallium (Ga), tin (Sn) and tin lithium alloy (Sn–20Li) was investigated by means of static corrosion tests. The corrosion tests were performed for reduced activation ferritic martensitic steel JLF-1 (JOYO-HEAT, Fe–9Cr–2W–0.1C) and austenitic steel SUS316 (Fe–18Cr–12Ni–2Mo). The test temperature was 873 K, and the exposure time was 250 and 750 h. The corrosion of these steels in liquid Ga, Sn and Sn–20Li alloy was commonly caused by the formation of a reaction layer and the dissolution of the steel elements into the melts. The reaction layer formed in liquid Ga was identified as Fe3Ga from the results of metallurgical analysis and the phase diagram. The growth rate of the reaction layer on the JLF-1 steel showed a parabolic rate law, and this trend indicated that the corrosion could be controlled by the diffusion process through the layer. The reaction layer formed in liquid Sn and Sn–20Li was identified as FeSn. The growth rate had a linear function with exposure time. The corrosion in Sn and Sn–20Li could be controlled by the interface reaction on the layer. The growth rate of the layer formed in liquid Sn and Sn–20Li was much slower than that in liquid Ga. The weight change of the JLF-1 specimen immersed in Sn–20Li for 750 h was measured after the removal of the adherent Sn–20Li in a Li pool. The weight loss was 1.42 × 103g/m3, and this value was 1500 times larger than that tested in liquid lead lithium alloy (Pb–17Li) at the same conditions in the previous studies.
DOI: 10.1016/j.jnucmat.2009.08.005
发表时间: 2009-10
影响因子: 3.1
作者:
Qi Xu;M. Kondo;T. Nagasaka;T. Muroga;O. Yeliseyeva
通讯作者: Qi Xu;M. Kondo;T. Nagasaka;T. Muroga;O. Yeliseyeva