Re-solidification dynamics and microstructural analysis of laser welded aluminium-Reference-Cited by-同舟云学术

Re-solidification dynamics and microstructural analysis of laser welded aluminium

Published:2019-12-25 Issue:1 Volume:111 Page:17-22
ISSN:1862-5282
Container-title:International Journal of Materials Research
language:en
Short-container-title:

Author:

Meylan B.¹,Le-Quang T.¹,Olbinado M.P.²,Rack A.²,Shevchik S.A.¹,Wasmer K.¹

Affiliation:

1. Laboratory for Advanced Materials Processing (LAMP) , Swiss Federal Laboratories for Materials Science and Technology (Empa), Thun , Switzerland

2. ESRF – The European Synchrotron , Grenoble , France

Abstract

Abstract In this work, we investigated the re-solidification dynamics and microstructure of aluminium AA5005 welded by fibre laser. The re-solidification process was visualized by high-speed X-ray imaging at the European Synchrotron Radiation Facility (ESRF, Grenoble, France). The final microstructure was studied by electron backscatter diffraction. The experiments were performed in both conduction and keyhole weld regimes. The results show that fine and equiaxed structure is obtained for conduction welding due to very high cooling rate. Keyhole welding also shows similar structure at the beginning of re-solidification, followed by a columnar microstructure.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.3139/146.111838/pdf

Reference13 articles.

1. Copyright

2. Review of laser welding monitoring

3. Why is in situ quality control of laser keyhole welding a real challenge?

4. Laser processing quality monitoring by combining acoustic emission and machine learning: a high-speed X-ray imaging approach

5. Direct observation of keyhole characteristics in deep penetration laser welding with a 10 kW fiber laser

Cited by 4 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. In situ observation and reduction of hot-cracks in laser additive manufacturing;Communications Materials;2024-05-25

2. Energy-efficient laser welding with beam oscillating technique – A parametric study;Journal of Cleaner Production;2021-09

3. Solidification crack propagation and morphology dependence on processing parameters in AA6061 from ultra-high-speed x-ray visualization;Additive Manufacturing;2021-06

4. Tomography and radiography using hard X-rays and neutrons: shedding light on materials properties and engineering devices;International Journal of Materials Research;2019-12-25