Microscopic observation and mechanical tests of CuNiCrSi/321 brazed joints

Autor:	Ye. I. Chulkov, N. S. Krestnikov, A. D. Ivanov, M. S. Baryshev, Yu. V. Blinov
Rok vydání:	1998
Předmět:	Materials science Silicon Alloy chemistry.chemical_element engineering.material Condensed Matter Physics Nickel Nuclear Energy and Engineering chemistry Ultimate tensile strength engineering Fracture (geology) Brazing Composite material Joint (geology) Tensile testing
Zdroj:	Plasma Devices and Operations. 6:37-44
ISSN:	1029-4929 1051-9998 1000-1050
Popis:	CuNiCrSi/321 and CuNiCrSi/CuNiCrSi joints of 45 mm-thick were fabricated by brazing at the temperature of 950-1050 oC using compression pressure (15-20 MPa) and Cu-Mn-Ni filier (PM-17). Microscopic observation and mechanical tests of fabricated joints were performed. No defects were detected in the structure of Cu/SS and Cu/Cu joints. An increased nickel and silicon content within the CuNiCrSi/321 brazed joint's seara was observed. The Cu/SS brazed joints fabricated at 1000-1050 oC, holding time of 10-15 min have quite a high strength (UTS = 500-540 MPa at 20 oC) which makes about 0.9 of the ultimate tensile strength of CuNiCrSi alloy. During the tensile test, the specimens were basically ruptured along the brazed seam, but the fracture occurred by the ductile mechanism.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4b31eda114e6fa492e919f99c25dfad5 https://doi.org/10.1080/10519999808226620 Zobrazit plný text záznamu