Effect of specimen orientation and welding on the fracture and fatigue properties of 2195 Al–Li alloy

Chaturvedi, M.C.; Chen, D.L.

doi:10.1016/j.msea.2004.01.129

Cited by 30 publications

(12 citation statements)

References 11 publications

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“…The measured compositions of the S2195 sheet of our study are shown in Table 1. Statistical analysis was performed to those microstructure features such as material phase structure, grain size distribution, grain boundary characteristics and microstructures with the help of the EBSD technique [11]. Its base microstructures ( Figure 1) indicate that its base grains were rolled in a bundle/stripe distribution; also, their grain orientation reveals that the base preferentially grows Crystal Directions of <111> and <001> so that the rolled sheet shall be characterized as an anisotropic fiber texture.…”

Section: Test Conditions and Welding Process 11 Test Materials And Smentioning

confidence: 99%

Study on Welding Adaptability of Spray Formed 2195 Al-Li Alloy Filler Wires

2020

Preprint

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Study on the weldability of Al-Li alloy indicates that the composition design of filler wires, and the morphology and content of the strengthening elements dominate microstructures, mechanical properties and defect control of fusion welding joint; and the welding process can actively correct the joint performances within limits. The filler wires of the both Al-Cu and Al-Cu -Zr alloy systems were developed and comparison and analysis were carried out to their adaptability along with study of the weldability of spray formed 2195 Al-Li alloy. The EDSD (electron back-scattered diffraction) detection method was applied to obtain the statistics of the microstructure fraction, grain size and small angle grain boundary of weld joints and their microstructures and correspondingly establish the interrelationship between the filler compositions and joint microstructure and performances; moreover, a microstructure matching based optimization approach was put forward to the fusion welding filter based on analysis of characteristics between weld joints and the base metal microstructures.

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Section: Test Conditions and Welding Process 11 Test Materials And Smentioning

confidence: 99%

Study on Welding Adaptability of Spray Formed 2195 Al-Li Alloy Filler Wires

2020

Preprint

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“…Until now many studies have been made on conventional arc welding of Al–Li based alloys using a wide variety of welding processes [3,4,5,6,7,8]. Serious mechanical property degradation and high deformation in arc welding of Al–Li based alloys have been reported [1,3,4,5,6,7,8]. The use of laser welding is particularly attractive for Al–Li based alloys due to the tight focus ability and high power density of the laser beam [1,9,10].…”

Section: Introductionmentioning

confidence: 99%

EBSD Investigation of the Microtexture of Weld Metal and Base Metal in Laser Welded Al–Li Alloys

et al. 2018

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Autogenous laser welding of 5A90 Al–Li alloy sheets in a butt-joint configuration was carried out in this study. The microstructure characteristics of the weld metal and base metal in the horizontal surface and the transverse section of the welded joints were examined quantitatively using electron back scattered diffraction (EBSD) technique. The results show that the weld metal in the horizontal surface and the transverse section exhibits similar grain structural features including the grain orientations, grain shapes, and grain sizes, whereas distinct differences in the texture intensity and misorientation distributions are observed. However, the base metal in the horizontal surface and the transverse section of the joints reveals the obvious different texture characteristics in terms of the grain orientation, grain morphology, predominate texture ingredients, distribution intensities of textures, and grain boundary misorientation distribution, resulting in the diversity of the microhardness in the base metal and the softening of the weld metal. However, the degree of the drop in the hardness of the weld metal is highly correlated to the microtexture developed in the base metal.

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“…Aluminum lithium alloy 2195 was developed to replace AA2219 which was being conventionally used to build the external tank of the USspace shuttles. It is a high strength, weldable alloy which provides a considerable mass reduction and increase in the pay load capability of the space shuttle (Ref [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Retrogression and Reaging on Aluminum Alloy 2195

Ward

Tran

Abad

et al. 2010

J. of Materi Eng and Perform

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A retrogression and reaging (RRA) treatment was performed on 2195 Al-Li Alloy. The exposure times were from 5 to 60 min, and the temperatures were from 200 to 250°C. Samples that were exposed to a salt spray test had overall similar mechanical properties as compared to those that were not exposed. The percent elongation, however, was significantly deteriorated due to the salt spray exposure. The mechanical properties of the 2195 samples were compared to those of 2099 samples exposed to similar treatments in an earlier study.

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Effect of specimen orientation and welding on the fracture and fatigue properties of 2195 Al–Li alloy

Cited by 30 publications

References 11 publications

Study on Welding Adaptability of Spray Formed 2195 Al-Li Alloy Filler Wires

Study on Welding Adaptability of Spray Formed 2195 Al-Li Alloy Filler Wires

EBSD Investigation of the Microtexture of Weld Metal and Base Metal in Laser Welded Al–Li Alloys

The Effects of Retrogression and Reaging on Aluminum Alloy 2195

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