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http://dx.doi.org/10.3740/MRSK.2016.26.7.376

Effect of Tin Addition on the Melting Temperatures and Mechanical Properties of Al-Si-Cu Brazing Filler Metals  

Kim, Min Sang (Department of Materials Science and Engineering, Hanyang University)
Park, Chun Woong (Department of Materials Science and Engineering, Hanyang University)
Byun, Jong Min (Department of Materials Science and Engineering, Hanyang University)
Kim, Young Do (Department of Materials Science and Engineering, Hanyang University)
Publication Information
Korean Journal of Materials Research / v.26, no.7, 2016 , pp. 376-381 More about this Journal
Abstract
For the development of a low-melting point filler metal for brazing aluminum alloy, we analyzed change of melting point and wettability with addition of Sn into Al-20Cu-10Si filler metal. DSC results showed that the addition of 5 wt% Sn into the Al-20Cu-10Si filler metal caused its liquidus temperature to decrease by about 30 oC. In the wettability test, spread area of melted Al-Cu-Si-Sn alloy is increased through the addition of Sn from 1 to 5 wt%. For the measuring of the mechanical properties of the joint region, Al 3003 plate is brazed by Al-20Cu-10Si-5Sn filler metal and the mechanical property is measured by tensile test. The results showed that the tensile strength of the joint region is higher than the tensile strength of Al 3003. Thus, failure occurred in the Al 3003 plate.
Keywords
brazing; aluminum alloy; bonding technology; melting point;
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