软磁性金属玻璃的重离子辐照效应研究

项目名称： 软磁性金属玻璃的重离子辐照效应研究

项目编号： No.11275005

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 孙建荣

作者单位： 中国科学院近代物理研究所

项目金额： 80万元

中文摘要： 金属玻璃（非晶合金）是一类兼具金属和玻璃特性，具有优异力学、物理和化学性能的新型合金材料，其在军事、经济领域有着非常广阔的应用前景，评价、优化和改性这类材料的性能，对于加快我国大块金属玻璃功能材料的研发和应用都有着巨大的推动作用。本项目根据新型金属玻璃材料的开发需求，针对尚未解决的金属玻璃转变（弛豫）行为以及形变机制这两个重要科学问题，选择磁、力学性能较好的FeZrNbSiB和ZrAlNiCu大块金属玻璃为研究对象，以我国大科学工程HIRFL为依托，以高能离子束为主要工具，开展重离子辐照软磁性金属玻璃的研究。期望通过努力，掌握这类材料的微观结构和物性随重离子辐照参数的变化规律，这不仅能为我国在先进材料的评价、设计、改性和表征方面提供重要的科学依据，还将有效提升我国在金属玻璃形成和塑性形变机制、离子与固体相互作用等基础领域的研究水平。

中文关键词： 金属玻璃；重离子；辐照效应；辐照损伤；

英文摘要： Metallic glass (amorphous alloy) is a type of new alloy material of both metal and glass characteristics, with excellent mechanical, physical and chemical properties. Therefore, it has very broad application prospects in military and economic fields. Optimization and modification of these materials’ performance then will greatly accelerate the development and application of the functional materials of bulk metallic glass. Out of the development needs of the new metallic glass materials, and focusing on two important unresolved scientific issues of metallic glass transition (relaxation) behavior as well as deformation mechanisms, our project carries out the study of heavy ion irradiation on soft magnetic metallic glass relying on HIRFL (a national big science project of China), with FeZrNbSiB and ZrAlNiCu bulk metallic glass of good magnetic and mechanical properties being objects investigated and high-energy ion beam as the main tool. It is expected that the materials’ microstructures and the property variations along with heavy ion irradiation parameter changes will be fully revealed, which can not only provide important scientific basis for the evaluation, design, modification and representation of advanced materials in China, but also effectively enhance our research level in basic research fields of metallic

英文关键词： Metallic glasses；Heavy ion；Irradiation effects；Irradiation damage；