Mechanical property and irradiation damage of China Low Activation Martensitic (CLAM) steel

作者：Zhu YanYong; Wan FaRong^*; Gao Jin; Han WenTuo; Huang YiNa; Jiang ShaoNing; Qiao JianSheng; Zhao Fei; Yang ShanWu; Ohnuki, Somei; Hashimoto, Naoyuki

来源：Science China Physics,Mechanics & Astronomy, 2012, 55(11): 2057-2061.

DOI：10.1007/s11433-012-4865-8

• low activation ferritic/martensitic steel
• mechanical property
• electron irradiation
• irradiation damage
• silicon
• yttrium

China Low Activation Martensitic (CLAM) steel is being studied to develop the structural materials for a fusion reactor, which has been designed based on the well-known 9Cr1.5WVTa steel. The effect of tempering temperature on hardness and microstructure of CLAM steel was studied. The strength of CLAM steel increased by adding silicon, and the ductility remained constant. Conversely, while CLAM steel maintained good ductility with the addition of yttrium, its tensile strengths were greatly degraded. Behaviors under electron irradiation of CLAM steel were examined using the high voltage electron microscope. Electron irradiation at 450A degrees C formed many voids in CLAM steel with basic composition, whereas CLAM with silicon steel did not change the microstructure significantly.

• 出版日期2012-11
• 单位北京科技大学; 钢铁研究总院; 贵州大学; 中国原子能科学研究院