DEVELOPMENT OF A NOVEL STRUCTURAL MATERIAL (SIMP STEEL) FOR NUCLEAR EQUIPMENT WITH BALANCED RESIS-TANCES TO HIGH TEMPERATURE, RADIATION AND LIQUID METAL CORROSION

DEVELOPMENT OF A NOVEL STRUCTURAL MATERIAL (SIMP STEEL) FOR NUCLEAR EQUIPMENT WITH BALANCED RESIS-TANCES TO HIGH TEMPERATURE, RADIATION AND LIQUID METAL CORROSION
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DOI：
10.11900/0412.1961.2016.00320
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发表时间：
2016-08
期刊：
Acta Metallurgica Sinica
影响因子：
2.3
通讯作者：
Ke Yang;Wei Yan;Zhi-Gang Wang;Y. Shan;Q. Shi;Xianbo Shi;Wei Wang
Ke Yang;Wei Yan;Zhi-Gang Wang;Y. Shan;Q. Shi;Xianbo Shi;Wei Wang
中科院分区：
材料科学3区
文献类型：
--
作者：
Ke Yang;Wei Yan;Zhi-Gang Wang;Y. Shan;Q. Shi;Xianbo Shi;Wei Wang

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加速器驱动次临界(accelerator driven subcritical system, ADS)系统由加速器、散裂靶、反应堆3部分组成, 被认为是安全处理核废料最具前景的技术方案.在我国，ADS系统在理论研究和工程实践方面都取得了长足的进步。该系统由加速器、散裂靶和反应堆三部分组成。散裂靶结构材料的最大挑战是不仅要具有良好的耐热性和耐辐射性，还要具有耐液态金属腐蚀性。针对这一挑战，开发了一种新型马氏体耐热钢--SIMP钢。 通过制衡(9%~12%)Cr马氏体耐热钢中C, Cr, Si等元素含量对耐高温、抗辐照、抗液态金属腐蚀性能的影响, 获得了SIMP钢优化的化学成分, 极好地平衡了SIMP钢耐高温、抗辐照、抗液态金属腐蚀3方面性能.对1 t和5 t两种尺寸的SIMP钢进行的试验结果表明，这种新型钢作为ADS系统中的层裂靶的候选结构材料是很有潜力的。
Accelerator driven subcritical (ADS) system has been recognized to be the most promising technology for safely treating the nuclear wastes by now. In China, ADS system has achieved great progress in both fundamental research and engineering practice. This system is composed of three parts, which are accelerator, spallation target and reactor. The biggest challenge exists in the structural material for the spallation target is to possess not only good heat-resistance and radiation resistance but also a resistance to liquid metal corrosion. A novel martensitic heat-resistant steel, SIMP steel, has been developed against this challenge. By negotiating the effects of the contents of those important elements such as C, Cr and Si in the (9%~12%)Cr martensitic heat-resistant steel on heat resistance, radiation resistance, and liquid metal corrosion resistance, an optimized chemical composition was obtained for SIMP steel and a good balance was reached among these three properties. The test results conducted on one-ton and five-tons scales SIMP steels showed that this novel steel is much potential as a candidate structural material for the spallation target in ADS system.