Development of New Cryogenic Steels for the Superconducting Magnets of the Fusion Experimental Reactor
Development of New Cryogenic Steels for the Superconducting Magnets of the Fusion Experimental Reactor
复制标题
聚变实验堆超导磁体新型低温钢的研制
DOI：
10.2355/isijinternational.30.567
复制
发表时间：
1990
影响因子：
1.8
通讯作者：
S. Shimamoto
中科院分区：
文献类型：
--
作者：
H. Nakajima;Kiyoshi Yoshida;S. Shimamoto
日本原子能研究所（JAERI）与四家钢铁公司合作，成功开发了用于聚变实验反应堆（FER）超导磁体的新型低温钢。 JAERI 需要强度-韧性组合（σy>1 200 MPa，Klc>200 MPa√m，称为 JAERI 箱），这超出了现有低温用途奥氏体不锈钢的能力。这些要求是根据应力分析、超导材料性能、裂纹扩展分析、线圈操作等确定的。新型低温钢是通过拉伸、夏比冲击和断裂韧性测试逐步开发的。 JAERI 安装了世界上最大的 4-K 试验机，最大负载为 100 吨，用于评估大型样本的机械性能并研究样本尺寸效应。新开发的工业炉钢（5-50吨）被命名为“日本低温钢”（JCS），其机械性能满足上述要求。这些钢已经用于超导线圈，例如 JAERI 的演示极向线圈 (DPC)。本文回顾了 FER 超导磁体的 JCS 的发展。
The Japan Atomic Energy Research Institute (JAERI) has successfully developed new cryogenic steels for the superconducting magnets of the Fusion Experimental Reactor (FER) in collaboration with 4 steel companies. JAERI required a strength-toughness combination (σy>1 200 MPa, Klc>200 MPa√m, called JAERI box) that was beyond the capabilities of the existing austenitic stainless steels for cryogenic use. These requirements were determined from stress analyses, properties of the superconducting materials, crack propagation analyses, coil operation, etc. The new cryogenic steels were developed using tension, Charpy impact, and fracture toughness tests, step by step. The largest 4-K testing machine in the world, of maximum load 100 t, was installed at JAERI in order to evaluate the mechanical properties of large specimens and to investigate specimen size effects. The newly developed steels supplied from industrial heats (5-50 t) were named "Japanese Cryogenic Steels" (JCS), and their mechanical properties satisfied requirements mentioned the above. These steels have been already used in superconducting coils, such as JAERI's Demo Poloidal Coils (DPC).This paper reviews the development of the JCS for the superconducting magnets of the FER.