Comprehensive study on material damage mechanism by experimental and theoretical methods and development of materials for high-energy quantum-beam field

高能强质子束场中的物质由于强烈的热冲击和辐射而受到损伤。实验研究了冲击损伤过程及其影响，并提出了缓解方法。此外，还开发了对辐射损伤进行理论评估的仿真程序。此外，我们的晶界工程方法成功地使各种奥氏体不锈钢的耐蚀率提高了4倍。采用超细晶粒粉末制备的新型钨材料，其韧性是普通钨的4倍，即使在室温下也具有延展性。为了改进材料的动力学研究，设计了在冲击实验中使用应力发光材料的定量方法。

The material in a high energy intense proton beam field receives damage due to an intense thermal shock and radiation. A shock damage process and influence were investigated experimentally and the easing method was drawn. Moreover, the simulation code which evaluates a radiation trauma theoretically was developed. Furthermore, our grain boundary engineering method has succeeded the four times increase in corrosion resistivity of various austenite stainless steels. New tungsten material developed with a ultra-fine grain powder has four times higher toughness than that of commercial tungsten and does ductility even at a room temperature. The quantitative method using the stress luminescence material in a shock experiment was devised to improve a material dynamics study.