Influence of temperature cycles on the microstructures and mechanical properties of the partially melted zone in the fusion welded joints of 2219 aluminum alloy

Li, Quan; Wu, Aiping; Li, Yanjun; Wang, Guoqing; Yan, Dongyang; Liu, Juan

doi:10.1016/j.msea.2014.11.047

Cited by 59 publications

(18 citation statements)

References 15 publications

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“…In Eq. (7), n is in the range of 0.5-0.75 for the yield stress of pure fcc substitutional solid solutions, and it increases to about 1.0 for the commercial aluminum alloys [11]. At the T p of 550°C, the solid solution strengthening effect also increases.…”

Section: Mechanical Propertiesmentioning

confidence: 93%

“…7, was used to measure the lattice parameters of the matrix. In the 2219 alloy, the relationship between the concentration of Cu in the a phase (C s , wt%) and the lattice parameter (a, nm) of the a phase [11,22] can be expressed as:…”

Section: Behavior Of Precipitatesmentioning

confidence: 99%

“…Therefore, the concentration of Cu in the a phase would increase. The correlation between the flow stress (r, MPa) and the alloy concentration (C, at.%) is expressed in the following formula [11]:…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…stable h (Al 2 Cu) [9,10]. The major strengthening phases are the distributed nano-scaled disk-shaped GP zones and the h 0 aging phases, although other phases, such as the T phases and the Al-Cu-Fe-Mn phases, have also been reported in the literature [11,12]. Recently, numerous studies have focused on the influence of the post-weld heat treatment (PWHT) on the microstructure and mechanical properties of the 2219 alloy joints [13,14].…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Mechanical Behavior and Hypervelocity Impact Performance of an Al-Based Nanocrystalline Alloy

Deng

Wang

Chi

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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The effect of peak temperature (T p) at 200, 300, 400, 500 and 550°C on the microstructural evolution and softening behavior of the simulated heat-affected zone (HAZ) was studied in the 2219-T87 alloy by electron-backscatter diffraction, transmission electron microscopy, X-ray diffraction, micro-hardness and micro-tensile tests. The results showed that the grain size in the HAZs at 200-500°C was comparable, but the number density of the strengthening precipitates (GP zones/h 0) decreased with increasing T p. At a T p of 550°C, the grain size significantly decreased and the distribution of the misorientation angles corresponded to the MacKenzie distribution. The GP zones/h 0 phase coarsened and translated into h phases at T p values in the range of 200-400°C. Increasing the T p to 500°C and above, some h 0 phases translated into h phases and others dissolved into the a-Al matrix which led to an increase in the solid solution strengthening. The reduction of the number density of the GP zones/h 0 was responsible for the softening behavior.

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Section: Mechanical Propertiesmentioning

confidence: 93%

Section: Behavior Of Precipitatesmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic Mechanical Behavior and Hypervelocity Impact Performance of an Al-Based Nanocrystalline Alloy

Deng

Wang

Chi

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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“…As a kind of Al-Cu-Mn aluminum alloy developed by ALCOA in the mid-20th century, 2219 aluminum alloy is of excellent thermal resistance, corrosion resistance and welding performance; hence it is widely used in the manufacturing of aerospace equipment, especially rocket fuel tank [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Different External Fields on Aging Kinetics of 2219 Aluminum Alloy

Zhan

et al. 2016

Metals

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Abstract:By undertakig an aging experiment on 2219 aluminum alloy under different external field and by the method of hardness test, a comparative study on the kinetics of aging generated under different external fields was conducted. Furthermore, the time-temperature-transformation curves (TTT curve) were obtained, and the microstructure and mechanical property of the alloy under the effect of different external fields were tested. Results indicated that the effect of magnetic field postponed the alloy's aging precipitation process, and slightly reduced its mechanical property; the effects of electric field accelerated the alloy's aging precipitation, increased its mechanical property and made the precipitated phase of alloy smaller and diffused. In addition, through analysis, it was concluded that the performance of the specimen was even more balanced under the effect of electromagnetic field.

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An Overview of Advancement in the Application of Heat-Resistant Alloys

Lawal

Adedipe

2017

Handbook of Ecomaterials

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Influence of temperature cycles on the microstructures and mechanical properties of the partially melted zone in the fusion welded joints of 2219 aluminum alloy

Cited by 59 publications

References 15 publications

Dynamic Mechanical Behavior and Hypervelocity Impact Performance of an Al-Based Nanocrystalline Alloy

Dynamic Mechanical Behavior and Hypervelocity Impact Performance of an Al-Based Nanocrystalline Alloy

The Influence of Different External Fields on Aging Kinetics of 2219 Aluminum Alloy

An Overview of Advancement in the Application of Heat-Resistant Alloys

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