【作者】 刘天鸷； 羌建兵； 王英敏； Haeussler Peter； 王建豹； 练友运；

【Author】 Liu Tianzhi;Qiang Jianbing;Wang Yingmin;Haeussler Peter;Wang Jianbao;Lian Youyun;Key Laboratory of Materials Modification by Laser,Ion,and Electron Beams (Ministry of Education),Dalian University of Technology;Fusion Laboratory,Southwestern Institute of Physics;

【机构】 大连理工大学三束材料改性教育部重点实验室； 核工业西南物理研究院聚变所；

【摘要】 在DEMO聚变示范堆的偏滤器中,钨/低活化钢之间的有效连接至关重要。本文运用团簇合金设计理论结合单辊急冷技术开发出Fe₆₀Mn₁₅B_16.67Si_6.33Sn₂箔状新非晶,并将其作为钎料应用于钨/低活化钢的连接,以此为基础研究了钎焊温度（1180-1220℃）与保温时间（15⁴5min）对相关钎焊接头组织与性能的影响规律。最终结果表明:当钎焊温度为1220℃、钎焊时间为30min时,所获得的钎焊接头质量最优,其界面结合良好,无孔洞、裂纹等宏观缺陷,焊缝具有较高的剪切强度。更多还原

【Abstract】 The effective joining of tungsten and reduced activation steels is crucial for the divertor of developing demonstration fusion reactor（DEMO）.The amorphous alloy composition of Fe₆₀Mn₁₅B_16.67Si_6.33Sn₂ has been designed as a new filler metal in the present work by using the so-called cluster-formula alloy design method, andribbon sampleswere prepared through melt-spinning technique, then the amorphous filler metal was used to braze the tungsten and reduced activation steels, and the influences of welding temperature（1180¹220℃） and brazing time（15⁴5 min）on the microstructure and property of brazed joints were investigated.The experimental results revealed that theholes and cracks-free brazing joint with high shear strength can be achieved at the welding temperature of 1220℃ with 30 minutes duration.更多还原