Material system issues in the next fusion device

下一个聚变装置中的材料系统问题

基本信息

批准号：
03302061
负责人：
MATSUI Hideki
金额：
$ 8.32万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Co-operative Research (A)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1993
项目状态：
已结题

项目摘要

In this project, matererials issues in experimetal reactors, e.g.ITER will be extracted from view points not only of individual materials but of material system to be integrated in a coherent functioning components. Small group meetings were held to discuss the basic strategy of this project : two times in 1991, two time in 1992 and three times in 1993. General meetings with approximately 50 participants were held two times in 1991, four times in 1993 and two times in 1994. As a result of this activity, categorization and definition of the service conditions of each material has been accomplished and a variety of material isses have been extracted. In particular, extreme ductility loss of austenitic steels to be adopted in the next device by irradiation and non-steady-state low temperature irradiation creep have been examined and possible contermeasures have been discussed. In the conceptual design examined in ITER/EDA,vanadium alloy has been considered as a candidate structural material. This concept has been also examined in this project. Although the system of vanadium alloy/liquid lithium has been concluded to have very attractive features, the lack in database for constructing large scale components and premature engineering in fabrication tchnique have been pointed out. As a result, it has been also concluded that it is still too early to adopt a vanadium alloy in major structural components in ITER.Vanadium alloys may well be adopted in DEMO and it has been also concluded that it is essential to adopt vanadium alloy test module in ITER.

在这个项目中，在实验反应堆中的载体问题，例如，将不仅从单个材料的观看点提取，而且还将从材料系统的观看点提取，这些系统将集成在相干功能组件中。举行了小组会议，讨论了该项目的基本策略：1991年两次，在1992年两次，在1993年进行了三次。1991年举行了大约50名参与者的股东大会，在1993年举行了两次，在1993年举行了两次，在1994年进行了两次。由于这种活动，分类，每种材料的服务条件的分类和各种材料的定义，并且已经提取了各种材料。特别是，已经检查了通过辐射和非稳态的低温照射蠕变在下一项装置中采用的极端延展性损失，并讨论了可能的结合。在ITER/EDA检查的概念设计中，钒合金被认为是候选结构材料。该项目也已经检查了这个概念。尽管已经得出结论的钒合金/液体锂系统具有非常吸引人的特征，但已经指出了用于构建大型组件的数据库和制造tchnique中过早工程的数据库。结果，还可以得出结论，在ITER中采用钒合金还为时过早。演示很可能会在iTER中采用vanadium合金，并且也得出结论，在ITER中采用钒合金测试模块至关重要。