Peculiarities of the structural-phase state of a brazing zone of dissimilar metal joints

The present work is devoted to the study of the structural-phase state of the brazed joints of dissimilar materials obtained by rapidly quenched filler metals before and after tests in the working conditions. The constructive elements of the International Thermonuclear Experimental Reactor (ITER) wo...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 130; no. 1; pp. 12047 - 12054
Main Authors Sevryukov, O N, Guseva, E V, Polyansky, A A
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.04.2016
Subjects
Brazed joints
Bronzes
Cladding
Copper
Dissimilar material joining
Dissimilar materials
Dissimilar metals
High temperature
Metal joints
Metallography
Rapid quenching (metallurgy)
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Summary:The present work is devoted to the study of the structural-phase state of the brazed joints of dissimilar materials obtained by rapidly quenched filler metals before and after tests in the working conditions. The constructive elements of the International Thermonuclear Experimental Reactor (ITER) working chamber were selected: mock-ups of the first wall (a beryllium cladding joined with the heat-removing bronze by high-temperature brazing) and the divertor (a tungsten cladding with built-up copper, brazing of copper with bronze). An analysis of the investigated samples and the data on the structural-phase state of the brazed joints and its evolution as a result of a cyclic thermal impact was carried out by metallography and electron microscopy.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/130/1/012047