Residual stress analysis of fusion reactor vacuum vessel shells

doi:10.16568/j.0254-6086.201803015

Abstract

Abstract:

In order to study the distribution of residual stress on cold pressing surface and hot pressing surface and the effect of annealing on the distribution of residual stress of the vacuum vessel shells’ surface of CFETR, the residual stress on 316LN cold pressing surface and 316LN hot pressing surface is studied with simulation analysis and experimental testing. The residual stress distributions of cold pressing surface and hot pressing surface and the effect of annealing on the distribution of residual stress are obtained. The result will provide data support for moulding process, and is important to study the forming of the vacuum vessel of CFETR.

Key words: Residual stress, Annealing, Hot pressing surface, Cold pressing surface

摘要：

为了了解聚变实验堆真空室壳体表面残余应力的分布以及退火工艺对残余应力的影响，通过模拟分析和实验检测两种方式对不锈钢316LN冷压曲面和热压曲面残余应力进行研究，获得退火前后曲面表面残余应力的大小，得到冷压曲面和热压曲面残余应力的分布以及退火工艺对残余应力分布的影响。研究结果为分析成型工艺提供数据支撑，对中国聚变工程实验堆真空室的研究与制造具有重要意义。

关键词: 残余应力, 退火, 冷压曲面, 热压曲面

CLC Number:

TL62+8

TANG Le, RAN Hong, HOU Ji-lai, HUANG Yun-cong, CAO Zeng, SONG Bin-bin. Residual stress analysis of fusion reactor vacuum vessel shells[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2018, 2(3): 334-338.

唐乐，冉红，侯吉来，黄运聪，曹曾，宋斌斌. 聚变实验堆真空室壳体成型残余应力分析[J]. 核聚变与等离子体物理, 2018, 2(3): 334-338.

References

[1] 范小松, 吴杰峰, 刘志宏. 未来聚变工程实验堆真空室壳体成型模拟与实验研究[J]. 核聚变与等离子体物理, 2017, 37(1): 32-36.
[2] 丁亚清. 国际热核实验反应堆(ITER)真空室的设计介绍[J]. 真空与低温, 2005, 11(3): 182-186.
[3] 冉红, 曹曾, 李勇. HL-2M托卡马克装置真空室设计[R]. 中国真空学会2012学术交流会, 2012.
[4] 许婕, 董方正, 唐芳群, 等. HL-2A装置真空室烘烤温度反馈控制系统设计[J]. 核聚变与等离子体物理, 2016, 36(2): 160-166.
[5] 黄运聪, 冉红, 曹曾, 等. HL-2M真空室用Inconel 625材料性能研究[J]. 核聚变与等离子体物理, 2016, 36(3): 237-242.
[6] 蔡立君, 刘德权, 冉红, 等. 等离子体破裂时HL-2M真空室的结构应力分析[J]. 核聚变与等离子体物理, 2011, 31(2): 127-132.
[7] 李勇, 刘德权, 冉红, 等. HL-2M真空室截面形式及重力支撑的初步分析[J]. 核聚变与等离子体物理, 2009, 29(3): 229-233.
[8] 才来中, 崔学武, 刘健, 等. HL-2M偏滤器的综合模拟技术初步研究[J]. 核聚变与等离子体物理, 2016, 36(1): 1-7.
[9] 张国辉, 夏凡, 宋显明, 等. HL-2M装置反馈控制系统的设计[J]. 核聚变与等离子体物理, 2011, 31(4): 332-338.
[10] 何峰, 曹建勇, 魏会领, 等. HL-2M装置周边磁场分布及NBI束线磁屏蔽分析[J]. 核聚变与等离子体物理, 2017, 37(4): 385-391.
[11] 袁保山, 龙永兴, 邱银, 等. HL?2M环向场线圈电磁场和受力的计算分析[J]. 核聚变与等离子体物理, 2017, 37(3): 249-256.
[12] Koizumi K, Nakahira M, Itou Y, et al. Design and development of the ITER vacuum vessel[J]. Fusion Engineering and Design, 1998, 41(1–4): 299?304.
[13] Liu J L, Wang K S, Chen X W. Study on a new technological scheme for cold press forging forming of step holes in thick sheet metal[J]. Applied Mechanics and Materials, 2012, 109: 187-190.
[14] CHANG Ying, MENG Zhao-Huan, YING Liang, et al. Influence of hot press forming techniques on properties of vehicle high strength steels[J]. Journal of Iron and Steel Research (International), 2011, 18(5): 59-63.
[15] 谷维忠, 刘庆才, 翟封祥. 金属焊接毛坯冲压成形残余应力的试验研究[J]. 大连铁道学院学报, 1997, 01: 86-90.
[16] He J L, Liu J, Cui Z S, et al. Ductile fracture prediction of 316ln stainless steel in hot deformation process[J]. Journal of Iron and Steel Research (International), 2014, 21(10): 923-930.
[17] 陈路飞, 熊毅, 李会鹏, 等. 不同温度下316LN奥氏体不锈钢拉伸变形后的组织演变与性能[J]. 材料热处理学报, 2016, 37(10): 131-137.
[18] 潘飞燕, 陈涛, 方章法. 盲孔法测量汽轮机转子残余应力[J]. 大型铸锻件, 2016, 05: 24-26, 35.