摘要
依托兰州重离子研究装置(HIRFL),开展了3种不同氧化物弥散强化的16Cr-ODS铁素体钢的重离子辐照损伤研究,旨在探究氧化物颗粒结构参数(尺寸和密度)对材料辐照硬化和Ne离子辐照脆化效应的影响。采用6.17 MeV/u的Ni离子辐照和Ne离子,借助辐照终端的梯度减能装置在材料样品中产生了均匀的辐照损伤坪区。借助纳米压痕和小冲杆测试技术分别获得了辐照前后材料的纳米硬度和延伸率数据。探究了氧化物纳米颗粒的界面对于缺陷的的吸收尾闾(sink strength)和材料的辐照硬化/脆化的关系。结果表明,吸收尾闾越大,ODS钢的抗辐照硬化和脆化能力越强。
The irradiation hardening and embrittlement behavior of three kinds of Oxide Dispersion Strengthened(ODS)steel(MA956,16Cr-4Al,16Cr-0.1Ti)are investigated by using the HIRFL(Heavy Ion Research Facility in Lanzhou).The main motivation is to find the relation between diameter and density of the oxides and irradiation hardening/embrittlement behavior of different ODS steels.These three kind of materials are irradiated by Ne and Ni ions,and get a uniform damage layer by using the energy degrader.The Nano-hardness and elongation of the materials are obtained by Nano-indentation and small punch test.The sink strength was calculated with the mean diameter and density of the materials.Then followed by nano-indentation test and small punch test to get the irradiation hardening and ductility loss.Results show that irradiation resistance of the materials rise with sink strength(S)increasing.
作者
陈宇光
张崇宏
丁兆楠
杨义涛
宋银
CHEN Yuguang;ZHANG Chonghong;DING Zhaonan;YANG Yitao;SONG Yin(University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China)
出处
《原子核物理评论》
CAS
CSCD
北大核心
2021年第2期203-209,共7页
Nuclear Physics Review
基金
国家重点研发计划专项(2017YFB0702202)
国家自然科学基金资助项目(U1532262)。
关键词
ODS钢
氧化物颗粒
辐照硬化
辐照脆化
吸收尾闾
oxide dispersion strengthen steel
oxide particle
irradiation hardening
irradiation embrittlement
sink strength
作者简介
陈宇光(1993-),男,河南许昌人,博士研究生,从事核结构材料研究,E-mail:ygchen@impcas.ac.cn;通信作者:张崇宏,E-mail:c.h.zhang@impcas.ac.cn。
