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核聚变与等离子体物理 ›› 2017, Vol. 37 ›› Issue (2): 188-193.DOI: 10.16568/j.0254-6086.201702010

• 核聚变工程技术 • 上一篇    下一篇

ITER第一壁模块Be/Cu连接界面的热疲劳损伤分析

刘丹华,王平怀,李 前,杨 波,金凡亚,谌继明*,ITER屏蔽包层组   

  1. (核工业西南物理研究院,成都 610041)
  • 收稿日期:2016-09-09 修回日期:2017-03-28 出版日期:2017-06-15 发布日期:2017-06-14
  • 作者简介:刘丹华(1983-),女,四川达州人,副研究员,硕士研究生,从事聚变堆材料研究。
  • 基金资助:

    四川省青年科技创新团队专项(2016TD0015)

Thermal fatigue failure behavior on Be/Cu joint of ITER first wall after enhanced heat flux test

LIU Dan-hua, WANG Ping-huai, LI Qian, YANG Bo, JIN Fan-ya, CHEN Ji-ming, ITER Shield Blanket Team   

  1. (Southwestern Institute of Physics, Chengdu 610041)
  • Received:2016-09-09 Revised:2017-03-28 Online:2017-06-15 Published:2017-06-14

摘要:

采用热等静压扩散连接技术并通过添加Ti/Cu中间过渡层实现了Be与CuCrZr合金之间的可靠连接,所制作的ITER第一壁小模块已通过高热负荷疲劳试验。对试验后的小模块进行了超声波无损探伤,发现界面多处存在大尺寸缺陷。介绍了高热负荷疲劳试验后模块的破坏性检测与分析,结合对缺陷界面的金相观察、SEM观察及EDS分析方法,确定了缺陷形成的主要原因。

关键词: ITER, 第一壁, 高热负荷试验, 破坏性检测

Abstract:

The ITER first wall mock-ups fabricated by joining CuCrZr and 316L(N) stainless steel with explosion welding, machining cooling channel, and then bonding Be tiles on CuCrZr interface with a hot isocratic press technology were subject to high heat flux test, the ultrasonic testing result of mock-up revealed that some larger defects on Be/Cu joint localized on the central area in mock-up. The defects located on Be/Cu interface were inspected by cutting sampling, combined with optical microscope, SEM observation and EDS, analyzing the possible reason what the defects caused by, leading to the first wall manufacturing technology optimization and better material choice.

Key words: ITER, First wall, Heat flux test, Destructive test

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