Characterizing the Soldering Alloy Type Zn-Al-Cu and Study of Ultrasonic Soldering of Al7075/Cu Combination

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F21%3A10247309" target="_blank" >RIV/61989100:27360/21:10247309 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2075-4701/11/1/27/htm" target="_blank" >https://www.mdpi.com/2075-4701/11/1/27/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met11010027" target="_blank" >10.3390/met11010027</a>

Result language

angličtina

Original language name

Characterizing the Soldering Alloy Type Zn-Al-Cu and Study of Ultrasonic Soldering of Al7075/Cu Combination

Original language description

The aim of the research was to characterize the soldering alloy type Zn-Al-Cu and study the fluxless ultrasonic soldering of the combination of aluminum alloy type Al7075 with copper substrate. The Zn-Al-Cu solder is of the close-to-eutectic type with two phase transformations: the eutectic transformation at 378 degrees C and the eutectoid transformation at 285 degrees C. The solder microstructure is formed of a matrix composed of the solid solutions of aluminum (Al) and zinc (Zn) in which the copper phases CuZn4 and CuAl2 are precipitated. The shear strength of the soldering alloy type Zn5Al with copper addition reaches values from 167 to 187 MPa and it depends on the copper content in the solder. The bond with aluminum alloy type Al7075 is formed due to the solubility of Al in zinc solder at the formation of solid solution Al. Contrary to this observation, the bond with the copper substrate is in this case formed due to the interaction of zinc and aluminum with the copper substrate. Two new intermetallic phases, namely Al(Cu,Zn)(2) and Cu3.2Zn0.7Al4.2, were formed. The average shear strength of Al7075/Zn5Al3Cu/Cu joints attained was 134.5 MPa. For comparison, the Cu/Zn5Al3Cu/Cu joint attained an average shear strength of 136.5 MPa.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20500 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Metals

ISSN

2075-4701

e-ISSN

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Volume of the periodical

11

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

17

Pages from-to

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UT code for WoS article

000610504500001

EID of the result in the Scopus database

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