Development of rapidly quenched brazing foils to join tungsten alloys with ferritic steel

被引：41
作者：
Kalin, BA
Fedotov, VT
Sevrjukov, ON
Moeslang, A
Rohde, M
机构：
[1] Moscow Engn Phys Inst, Moscow 115409, Russia
[2] Forschungszentrum Karlsruhe, Inst Materialforsch 1, D-76021 Karlsruhe, Germany
来源：
JOURNAL OF NUCLEAR MATERIALS | 2004年 / 329卷
关键词：
D O I：
10.1016/j.jnucmat.2004.04.170
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Results on rapidly solidified filler metals for tungsten brazing are presented. A rapidly quenched foil-type filler metal based on Ni-bal-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-2CeO(2) and monocrystalline pure tungsten were brazed to the steel under vacuum at 1150 degreesC, using a 0.5 mm thick foil spacer made of a 50Fe-50Ni alloy. As a result of thermocycling tests (100 cycles between 700 degreesC/20 min and air water cooling/ 3-5 min) on brazed joints, tungsten powder metallurgically processed W-2CeO(2) failed due to residual stresses, whereas the brazed joint with zone-melted monocrystalline tungsten withstood the thermocycling tests. (C) 2004 Elsevier B.V. All rights reserved.
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页码：1544 / 1548
页数：5
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