偏滤器穿管型结构材料的高温可靠性试验分析  

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

作　　者：陈先锋 覃世军[1] 汪青峰 曹金 卯鑫 刘鹏 冯星 CHEN Xian-feng;QIN Shi-jun;WANG Qing-feng;CAO Jin;MAO Xin;LIU Peng;FENG xing(Institute of Plasma Physics,HFIPS,Chinese Academy of Sciences,Hefei 230031;University of Science and Technology of China,Hefei 230026)

机构地区：[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

出　　处：《核聚变与等离子体物理》2023年第3期283-289,共7页Nuclear Fusion and Plasma Physics

基　　金：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)。

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。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.

关 键 词：PFC 整块结构 高温性能测试 疲劳试验 应力松弛 

分 类 号：TL621[核科学技术—核技术及应用]