Next Article in Journal
Effect of the Temperature in the Mechanical Properties of Austenite, Ferrite and Sigma Phases of Duplex Stainless Steels Using Hardness, Microhardness and Nanoindentation Techniques
Next Article in Special Issue
The Influence of Laser Welding on the Mechanical Properties of Dual Phase and Trip Steels
Previous Article in Journal
The Role of Mechanical Connection during Friction Stir Keyholeless Spot Welding Joints of Dissimilar Materials
Previous Article in Special Issue
Laser Beam Welding of a Ti–6Al–4V Support Flange for Buy-to-Fly Reduction
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessFeature PaperArticle
Metals 2017, 7(6), 218; doi:10.3390/met7060218

Multiphysics Simulation and Experimental Investigation of Aluminum Wettability on a Titanium Substrate for Laser Welding-Brazing Process

Process and Engineering in Mechanics and Materials (PIMM) Laboratory, UMR 8006 CNRS–ENSAM, 75013 Paris, France
*
Author to whom correspondence should be addressed.
Received: 5 May 2017 / Revised: 5 June 2017 / Accepted: 9 June 2017 / Published: 13 June 2017
(This article belongs to the Special Issue Laser Welding)
View Full-Text   |   Download PDF [5018 KB, uploaded 14 June 2017]   |  

Abstract

The control of metal wettability is a key-factor in the field of brazing or welding-brazing. The present paper deals with the numerical simulation of the whole phenomena occurring during the assembly of dissimilar alloys. The study is realized in the frame of potential applications for the aircraft industry, considering the case of the welding-brazing of aluminum Al5754 and quasi-pure titanium Ti40. The assembly configuration, presented here, is a simplification of the real experiment. We have reduced the three-dimensional overlap configuration to a bi-dimensional case. In the present case, an aluminum cylinder is fused onto a titanium substrate. The main physical phenomena which are considered here are: the heat transfers, the fluid flows with free boundaries and the mass transfer in terms of chemical species diffusion. The numerical problem is implemented with the commercial software Comsol Multiphysics™, by coupling heat equation, Navier-Stokes and continuity equations and the free boundary motion. The latter is treated with the Arbitrary Lagrangian Eulerian method, with a particular focus on the contact angle implementation. The comparison between numerical and experimental results shows a very satisfactory agreement in terms of droplet shape, thermal field and intermetallic layer thickness. The model validates our numerical approach. View Full-Text
Keywords: dissimilar joining; laser welding-brazing; finite element method; titanium; aluminium dissimilar joining; laser welding-brazing; finite element method; titanium; aluminium
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Dal, M.; Peyre, P. Multiphysics Simulation and Experimental Investigation of Aluminum Wettability on a Titanium Substrate for Laser Welding-Brazing Process. Metals 2017, 7, 218.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top