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首页> 外文会议>The 3rd International Symposium on Material Chemistry in Nuclear Environment (Material Chemistry '02 MC'02) Mar 13-15, 2002 Tsukuba >STATIC AND DYNAMIC CORROSION EXPERIMENTS IN LIQUID LEAD-BISMUTH
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STATIC AND DYNAMIC CORROSION EXPERIMENTS IN LIQUID LEAD-BISMUTH

机译：液体铅铋的静态和动态腐蚀实验

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Static and dynamic corrosion tests in liquid Pb-Bi eutectic were conducted to investigate applicability of metallic materials for an accelerator driven system which is being developed for transmutation of long-lived nuclear wastes. The static corrosion tests were performed in oxygen-saturated Pb-Bi at 450 and 550℃ for 3000h. The dynamic corrosion test was conducted using a liquid Pb-Bi loop where temperatures of high and low temperature parts were 450 and 400℃, and the flow rate of liquid Pb-Bi at the test section was about 1m/sec. In the static tests, the corrosion depth of F82H, Mod.9Cr-lMo steel and JPCA after immersion at 450℃ for 3000h was 14,13 and 5 μm, respectively. The thickness of the corrosion layer decreased with increasing Cr content of steels in the static corrosion test The corrosion depth of type 316ss at 450℃ was estimated to be about 100 μm after the test for 3000h in the Pb-Bi loop. It was also found that morphology of the interface faced to flowing Pb-Bi is different from that faced to static Pb-Bi. We observed the phenomena such as mass transfer, corrosion/erosion by flowing Pb-Bi, penetration of Pb-Bi into grain boundaries and dropping of grains in the dynamic corrosion test.
机译：进行了液态Pb-Bi共晶的静态和动态腐蚀试验，以研究金属材料在加速器驱动系统中的适用性，该系统正在开发用于长寿命核废料的trans变。在氧饱和的Pb-Bi中在450和550℃下进行了3000小时的静态腐蚀试验。动态腐蚀试验是使用液态Pb-Bi回路进行的，其中高温和低温部件的温度分别为450和400℃，并且在试验段处液态Pb-Bi的流量约为1m / sec。在静态试验中，F82H，Mod.9Cr-1Mo钢和JPCA在450℃下浸泡3000h后的腐蚀深度分别为14,13和5μm。在静态腐蚀试验中，腐蚀层的厚度随钢中Cr含量的增加而降低。在PB-Bi回路中进行3000h试验后，在450℃下316ss型的腐蚀深度估计约为100μm。还发现面对流动的Pb-Bi的界面形态不同于面对静态的Pb-Bi的界面形态。在动态腐蚀试验中，我们观察到了诸如传质，Pb-Bi流动引起的腐蚀/腐蚀，Pb-Bi渗入晶界以及晶粒掉落等现象。

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