Functionally graded material designs for application of fusion of cell nuclei

用于细胞核融合应用的功能梯度材料设计

• 批准号: 10044147
• 负责人: MIYAHARA Kazuya
• 金额: $ 3.71万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10044147/
• 关键词: fusion Mater.; first wall structural Mater.; functionally graded Mater.; Plasma spraying; W (tungsten); bonding interface; high Z Mater.; plasma facing Mater.; 核融合炉; 第一壁; 構造材料; 傾斜機能化; 材料設計; 界面反応; 照射損傷; 界面結合強度

(1) The material of the 50% 316-50% W showed very low ductility even just after the fabrication using the plasma spraying method, while the base metal of type 316 stainless steel showed the large ductility.(2) During the discharge machining of plate specimens (thickness : 1.5mm) for tensile test, fracture of W rich zone in the center of graded region of the hot pressed materials occurred, although fracture did not occur during the discharge machining of large block (thickness : about 10mm). This is considered to be due to the release of retained stress during the machining. Another large crack in the W rich zone was observed outside area of the graded region.

(1)50%316 - 50%W的材料即使在使用等离子喷涂方法制造之后也显示出非常低的延展性，而316型不锈钢的基底金属显示出大的延展性。(2)在放电加工1.5mm厚的拉伸试样过程中，热压材料梯度区中心富W区发生断裂，而在放电加工10 mm厚的大块试样过程中没有发生断裂。这被认为是由于在加工过程中残留应力的释放。另一个大的裂纹在富W区观察到的梯度区域的区域外。