Mechanical properties, corrosion and microstructure distribution of a 2195-T8 Al Li alloy TIG welded joint

Huang, Yang; Liu, Pingli; Xiang, Hui; Deng, Shaozhi; Guo, Ya-Fang; Li, Jinfeng

doi:10.1016/j.jmapro.2023.02.007

Cited by 10 publications

(1 citation statement)

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“…This technique operates on the principle of melting another metal with similar properties to the joined materials. The fact that there is high heat input involved in the procedure suggests that there are opportunities for the postdefects that can compromise the quality of the formed joint [3,4]. This suggests that there is a need for the post-treatment required when one wants to enhance the quality of the produced or existing joint.…”

Section: Introductionmentioning

confidence: 99%

Analyzing the Influence of Microstructure on the Mechanical Properties of TIG Welded Joints processed by Friction Stir considering the sampling Orientation

Msomi,

Mabuwa

2024

Eng. Technol. Appl. Sci. Res.

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The contribution of the microstructural arrangement to the mechanical properties of friction stir processed Tungsten Inert Gas (TIG) welded joints is reported in this work. The TIG-welded joints were subjected to a single pass of Friction Stir Processing (FSP). The friction stir processed joint was sampled transversally and longitudinally, and different tests were conducted and studied comparatively. The microstructural analysis showed refined grains with varying degrees. The mean grain size for the transversally sampled specimen was found to be 11.48 µm, while the longitudinally sampled specimen had varying mean grain size from 7.32 µm to 15.09 µm. The varying mean grain size of the longitudinally sampled specimen is caused by the staggered arrangement of the microstructure. The tensile properties and the microhardness of the transversally sampled specimen were lower than those of the longitudinally sampled specimen. The ultimate tensile strength of the transversally sampled specimen was found to be 87.88 MPa which is lower than that of the longitudinally sampled specimen (133.83 MPa). The microhardness of the longitudinally sampled specimen fluctuated between 30 HV and 80 HV while the transversally sampled specimen had a maximum microhardness of approximately 57 HV.

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Section: Introductionmentioning

confidence: 99%