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Nuclear Fusion and Plasma Physics ›› 2023, Vol. 43 ›› Issue (3): 283-289.DOI: 10.16568/j.0254-6086.202303006

• Nuclear Fusion Engineering • Previous Articles     Next Articles

Reliability experimental tests and analysis for tokamak monoblock-structural divertor under high-temperature condition

CHEN Xian-feng1, 2, QIN Shi-jun1 , WANG Qing-feng1 , CAO Jin1, 2, MAO Xin1 , LIU Peng1 , FENG xing1   

  1. (1. Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031; 2. University of Science and Technology of China, Hefei 230026) 
  • Received:2021-07-21 Revised:2022-10-25 Online:2023-09-15 Published:2023-08-31

偏滤器穿管型结构材料的高温可靠性试验分析

陈先锋 1, 2,覃世军*1,汪青峰 1 ,曹 金 1, 2,卯 鑫 1 ,刘 鹏 1 ,冯 星 1   

  1. (1. 中国科学院等离子体物理研究所,合肥 230031; 2. 中国科学技术大学,合肥 230026) 
  • 作者简介:陈先锋(1997−),男,安徽宿州人,硕士研究生,从事偏滤器热结构分析及其可靠性寿命预测研究。
  • 基金资助:
    国家自然科学基金(11975268);中国科学院合肥大科学中心协同创新培育基金(2020HSC-CIP007)

Abstract: The monoblock structure of CFETR divertor is composed of tungsten armor, Cu interlayer and CuCrZr alloypipe or CLAM steel. High temperature performance tests were carried out for Cu interlayer, CuCrZr alloy and CLAM steel. Low-cycle fatigue tests are completed to verify the life of Cu interlayer under different operating conditions. The relationship equations of CuCrZr alloy and CLAM steel between the relaxation stress and total strain were obtained based on stress-relaxation experiments. The impact of stress relaxation on the life evaluation was discussed. The analysis results are compared with the experimental results. 

Key words: PFC, Monoblock, High temperature performance tests, Fatigue tests, Stress relaxation

摘要: 中国聚变工程实验堆(CFETR)偏滤器材料采用穿管型结构,由最外层钨、铜中间层、铬锆铜(CuCrZr ) 或低活化马氏体钢(CLAM)热沉组成。探究了铜和两种热沉材料高温性能。对铜进行了高温低周疲劳试验,验证了铜夹层在不同工况下的循环寿命。对于 CuCrZr 和 CLAM 两种材料,进行了不同工况的应力松弛试验,拟合得到了松弛应力与总应变的关系式,对试验结果进行了对比。

关键词: PFC, 整块结构, 高温性能测试, 疲劳试验, 应力松弛

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