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On the modelling of joint formation in dissolutive brazing processes
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Univ Limerick, Dept Math & Stat, Limerick V94 T9PX, Ireland.ORCID iD: 0000-0002-8318-1251
Univ Toulouse, CIRIMAT, 4 Allee Emile Monso CS44362, F-31030 Toulouse 4, France..
2019 (English)In: Journal of Engineering Mathematics, ISSN 0022-0833, E-ISSN 1573-2703, Vol. 116, no 1, p. 73-99Article in journal (Refereed) Published
Abstract [en]

In this paper, earlier dissolutive wetting models describing the dynamics of an axisymmetric alloy drop spreading on pure metal substrate are extended to describe reactive wetting and subsequent joint formation in brazing processes. A two-dimensional time-dependent problem is formulated, and the model equations are nondimensionalized, revealing the possibilities for asymptotic model reduction. Whilst the numerical solution of the time-dependent problem, which contains two moving contact lines and would not in general be amenable to lubrication theory, is relegated to future work, the steady-state problem is analyzed in detail. The analysis offers an arguably more transparent alternative to an earlier energy minimization approach for finding the location of the meniscus, which ultimately constitutes the joint. The results of the present model are found to compare favourably to those of earlier experimental and theoretical work.

Place, publisher, year, edition, pages
SPRINGER , 2019. Vol. 116, no 1, p. 73-99
Keywords [en]
Asymptotic analysis, Dissolution, Wetting
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-255209DOI: 10.1007/s10665-019-10003-zISI: 000471954000005Scopus ID: 2-s2.0-85067245648OAI: oai:DiVA.org:kth-255209DiVA, id: diva2:1348189
Note

QC 20190903

Available from: 2019-09-03 Created: 2019-09-03 Last updated: 2019-09-03Bibliographically approved

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Vynnycky, Michael

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