中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
载能离子辐照钢铁材料硬化效应研究

文献类型:学位论文

作者张恒庆
答辩日期2014-05
授予单位中国科学院研究生院
授予地点北京
导师张崇宏
关键词Ods钢 He离子 重离子 辐照硬化
学位名称硕士
学位专业材料学
其他题名Irradiation hardening of ODS ferritic steels under helium implantation and heavy-ion irradiation
英文摘要The present work investigates the irradiation hardening of ODS ferritic steels after multi-energy He-ion implantation, or energetic Bi-ion and Xe-ion irradiation, to get an understanding of dependence of irradiation-hardening on atomic displacement damage and gas accumulation. Three kinds of high-Cr ODS ferritic steels including the commercial MA956 (19Cr-3.5Al), the 16Cr-0.1Ti and the 16Cr-0.1Zr ODS ferritic steels wereused. The results show that the hardness increases rapidly at the lower doses but tends to saturate at the higher dose. An 1/2-power law dependence on dpa value is obtained. Helium implantation contributes significantly to the irradiation hardening, possibly due to the impediment of the motion dislocations by helium bubbles.16Cr-ODS (Ti or Zr added) steels which contains finer oxide particles in higher number density show higher resistance to irradiation hardening than the MA956. 
源URL[http://ir.impcas.ac.cn/handle/113462/17608]  
专题近代物理研究所_先进核能材料研究室(ADS)
近代物理研究所_能源材料研究组
作者单位中国科学院近代物理研究所
推荐引用方式
GB/T 7714
张恒庆. 载能离子辐照钢铁材料硬化效应研究[D]. 北京. 中国科学院研究生院. 2014.

入库方式: OAI收割

来源:近代物理研究所

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