Influence of Yb:YAG Laser Beam Parameters on Haynes 188 Weld Fusion Zone Microstructure and Mechanical Properties

2017 ◽  
Vol 48 (4) ◽  
pp. 2007-2016 ◽  
Author(s):  
Jérémie Graneix ◽  
Jean-Denis Beguin ◽  
Joël Alexis ◽  
Talal Masri
Keyword(s):  
Mechanical Properties ◽  
Laser Beam ◽  
Fusion Zone ◽  
Microstructure And Mechanical Properties ◽  
Weld Fusion Zone ◽  
Beam Parameters ◽  
Zone Microstructure

Effects of Welding Wire Composition on Microstructure and Mechanical Properties of Welded Joint in Al-Mg-Si Alloy

2022 ◽  
Vol 905 ◽  
pp. 44-50
Author(s):  
Li Wang ◽  
Ya Ya Zheng ◽  
Shi Hu Hu
Keyword(s):  
Mechanical Properties ◽  
Fusion Zone ◽  
Heat Affected Zone ◽  
Welded Joint ◽  
Weld Zone ◽  
Xrd Analysis ◽  
Metallographic Analysis ◽  
Strengthening Effect ◽  
Welding Wire ◽  
Microstructure And Mechanical Properties

The effects of welding wire composition on microstructure and mechanical properties of welded joint in Al-Mg-Si alloy were studied by electrochemical test, X-ray diffraction (XRD) analysis and metallographic analysis. The results show that the weld zone is composed of coarse columnar dendrites and fine equated grains. Recrystallized grains are observed in the fusion zone, and the microstructure in the heat affected zone is coarsened by welding heat. The hardness curve of welded joint is like W-shaped, the highest hardness point appears near the fusion zone, and the lowest hardness point is in the heat affected zone. The main second phases of welded joints are: matrix α-Al, Mg2Si, AlMnSi, elemental Si and SiO2. The addition of rare earth in welding wire can refine the grain in weld zone obviously, produce fine grain strengthening effect, and improve the electrochemical performance of weld.

Microstructure and mechanical properties of laser beam-welded AA2060 Al-Li alloy

2016 ◽  
Vol 237 ◽  
pp. 301-308 ◽  
Author(s):  
Xinyi Zhang ◽  
Ting Huang ◽  
Wuxiong Yang ◽  
Rongshi Xiao ◽  
Zhu Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Laser Beam ◽  
Microstructure And Mechanical Properties

scholarly journals Weldability of Superalloys Hastelloy X by Yb: YAG Laser

2015 ◽  
Vol 1099 ◽  
pp. 61-70 ◽  
Author(s):  
Jeremie Graneix ◽  
Jean Denis Beguin ◽  
Joël Alexis ◽  
Talal Masri
Keyword(s):  
Mechanical Properties ◽  
Laser Beam ◽  
Laser Welding ◽  
Hastelloy X ◽  
Practical Applications ◽  
Good Oxidation Resistance ◽  
Nickel Chromium ◽  
Beam Parameters ◽  
Viable Method ◽  
Welding Technique

Hastelloy X is a commercially available nickel-chromium-molybdenum superalloy with a good oxidation resistance, a good mechanical properties at high temperature and a significant formability; sine qua criteria for the choice of materials for the production of chambers turbojet combustion which is part of this study [1]. Arc welding technique is commonly used for the manufacturing of parts but the aeronautical requirements becoming increasingly severe especially in terms of reproducibility of geometry and metallurgical grade fillet weld. Laser welding is a viable method of assembly to meet these new demands by its automation to replace longer term the manual TIG welding. The high power CO2laser is extensively used for practical applications such as cutting and welding laser welding. The CO2laser is very used in the industry with regard to Yb:YAG laser which until now was not rather powerful but this changes. The aim of this study was to evaluate the effect of Yb:YAG laser beam parameters on the microstructure and mechanical properties of the laser beam welded superalloys Hastelloy X to define a field of weldability. The implementation of an experimental design approach is required due to the multitude of input parameters and the complexity of the phenomena involved [2-3].

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