Microstructure and Mechanical Characterization of Laser Welded 6013 Aluminum Alloys Overlap Joint

Jia Xing Gu; Shang Lei Yang; Chen Feng Duan; Qi Xiong; Yuan Wang

doi:10.4028/www.scientific.net/KEM.795.49

Paper Titles

A Novel Method to Predict the Mechanical Properties of DP600
p.22

Low Cycle Fatigue Behavior of CP-Ti at Different Temperatures
p.29

Deformation Features of a High Mo Nickel-Based Single Crystal Superalloy during Creep at High Temperature
p.35

Effect of Ratcheting Strain on Mechanical Properties of Additive Manufactured 4043 Aluminum Alloy
p.43

Microstructure and Mechanical Characterization of Laser Welded 6013 Aluminum Alloys Overlap Joint
p.49

Evolution of Impact Properties of 16MND5 Forgings for Nuclear Reactor Pressure Vessel during Thermal Aging at 500°C
p.54

Fatigue Life Properties of Stainless Steels in Wide Ranged Biaxial Stress State
p.60

Investigation of Mechanical Properties and Ductile-Brittle Transition Behaviors of SA738Gr.B Steel Used as Reactor Containment
p.66

Research on the Micro-Mechanical State at Tip of Environmentally Assisted Cracking Based on Latin Hypercube Sampling Method
p.74

HomeKey Engineering MaterialsKey Engineering Materials Vol. 795Microstructure and Mechanical Characterization of...

Microstructure and Mechanical Characterization of Laser Welded 6013 Aluminum Alloys Overlap Joint

Abstract:

In this paper, 6013 aluminum alloy with the thickness of 2.5mm was overlap welded by fiber laser. The microstructure, mechanical properties and fracture morphology of the joint was tested and observed by Optical Microscope, material testing machines and Scanning Electron Microscope, thus the failure and fracture mechanism of the welded joint are analyzed. The results showed that good shape of weld was achieved under the optimal welding parameters. Equiaxial as-cast microstructures exist in the welding center and the columnar grains are formed near the fusion line in the WZ. The hardness of weld zone is the lowest in the joint, which is about 72 HV, about 57% of that of BM. The tensile shear strength of the joint is 96Mpa, about 25% of tensile strength of BM. The fracture is happened in WZ and the brittle fracture mode is dominated with shear dimples and shear planes.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 795)

Pages:

49-53

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.795.49

Citation:

Cite this paper

Online since:

March 2019

Authors:

Jia Xing Gu, Shang Lei Yang*, Chen Feng Duan, Qi Xiong, Yuan Wang

Keywords:

6013 Al-Alloy, Laser Welding, Mechanical Properties, Overlap

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Pakdil M, Am G, Ko Ak M, et al. Microstructural and mechanical characterization of laser beam welded AA6056 Al-alloy. Materials Science & Engineering A, 2011, 528(24):7350-7356.

DOI: 10.1016/j.msea.2011.06.010

Google Scholar

[2] Enz J, Riekehr S, Ventzke V, et al. Fibre laser welding of high-alloyed Al–Zn–Mg–Cu alloys. Journal of Materials Processing Technology, 2016, 237:155-162.

DOI: 10.1016/j.jmatprotec.2016.06.002

Google Scholar

[3] Hekmatjou H, Naffakh-Moosavy H. Hot cracking in pulsed Nd:YAG laser welding of AA5456. Optics & Laser Technology, 2018, 103:22-32.

DOI: 10.1016/j.optlastec.2018.01.020

Google Scholar

[4] Wang Q, Chen H, Zhu Z, et al. A characterization of microstructure and mechanical properties of A6N01S-T5 aluminum alloy hybrid fiber laser-MIG welded joint. International Journal of Advanced Manufacturing Technology, 2016, 5(5):1-10.

DOI: 10.1007/s00170-015-8280-y

Google Scholar

[5] Agarwal H, Gokhale A M, Graham S, et al. Void growth in 6061-aluminum alloy under triaxial stress state. Materials Science & Engineering A, 2003, 341(1):35-42.

DOI: 10.1016/s0921-5093(02)00073-4

Google Scholar