| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1555912 | Journal of Materials Science & Technology | 2016 | 5 Pages |
Abstract
Tungsten inert gas (TIG) welding-brazing technology using Mg-based filler was developed to join AZ31B Mg alloy to TC4 Ti alloy in a lap configuration. The results indicate that robust joints can be obtained with welding current in the range of 60-70âA. The joint interface was found to be likely composed of Mg-Ti diffusion reaction layer accompanied with Mg17Al12 precipitate phase, indicating that metallurgical joining was achieved. The optimized joint with average tensile-shear strength of 190Â N/mm2 was obtained and fracture occurred at the Ti/fusion zone interfacial layer during tensile test. Moreover, the fracture surface was characterized by equiaxed dimple patterns accompanied with a few lamellar tearing. Finally, finite element modeling (FEM) numerical simulation was developed to analyze the distribution characteristics of the temperature field of joints.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Chemistry
Authors
Chuan Xu, Guangmin Sheng, Hui Wang, Ke Feng, Xinjian Yuan,