Development of rapidly quenched brazing foils to join tungsten alloys with ferritic steel
Development of rapidly quenched brazing foils to join tungsten alloys with ferritic steel
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DOI：
10.1016/j.jnucmat.2004.04.170
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发表时间：
2004-08
影响因子：
3.1
通讯作者：
B. Kalin;V. Fedotov;O. N. Sevrjukov;A. Moeslang;M. Rohde
中科院分区：
文献类型：
--
作者：
B. Kalin;V. Fedotov;O. N. Sevrjukov;A. Moeslang;M. Rohde
介绍了钨钎焊用快速凝固钎料的研究结果。开发了一种基于Nibal-15 Cr-4 Mo-4Fe-（0.5-1.0）V-7.5Si-1.5B的快淬箔型钎料，用于将钨钎焊到铁素体/马氏体Cr 13 Mo 2NbVB钢（FS）上，用于氦气冷却偏滤器和面向等离子体部件。多晶W-2CeO 2和单晶纯钨在真空下在1150 °C下使用由50 Fe-50 Ni合金制成的0.5 mm厚的箔间隔物钎焊到钢上。作为钎焊接头的热循环试验（700 °C/20 min和空气-水冷却/3-5 min之间的100个循环）的结果，钨粉热处理的W-2CeO 2由于残余应力而失效，而用区熔单晶钨的钎焊接头经受住了热循环试验。
Results on rapidly solidified filler metals for tungsten brazing are presented. A rapidly quenched foil-type filler metal based on Nibal–15Cr–4Mo–4Fe–(0.5–1.0)V–7.5Si–1.5B was developed to braze tungsten to ferritic/martensitic Crl3Mo2NbVB steel (FS) for helium gas cooled divertors and plasma facing components. Polycrystalline W–2CeO2and monocrystalline pure tungsten were brazed to the steel under vacuum at 1150 °C, using a 0.5 mm thick foil spacer made of a 50Fe–50Ni alloy. As a result of thermocycling tests (100 cycles between 700 °C/20 min and air–water cooling/3–5 min) on brazed joints, tungsten powder metallurgically processed W–2CeO2failed due to residual stresses, whereas the brazed joint with zone-melted monocrystalline tungsten withstood the thermocycling tests.