Fatigue crack growth analysis in Al/Ti layered material in ambient and cryogenic conditions

Boroński, Dariusz; Kotyk, Maciej; Maćkowiak, P.; Sołtysiak, Robert

doi:10.1016/j.proeng.2018.02.054

Cited by 5 publications

(6 citation statements)

References 23 publications

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“…To improve the strength of titanium alloys, Lucjan Sniezek [16] and Dariusz Boroński [17] conducted a experiment with and without sandwich AA2519/Ti6Al4V explosive welding, respectively. The composite plate prepared by the experiment was loaded under different conditions to test the durability as well as the strength of the composite specimens.…”

Section: Introductionmentioning

confidence: 99%

Atomic motion behavior calculation and bonding mechanism analysis of explosive welding of high-strength and high-hardness titanium alloy Ti6Al4V/aluminum alloy 7075

Xiaoming,

Changgen,

Haitao

et al. 2023

Mater. Res. Express

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The explosive welding technology of titanium alloy Ti6Al4V/aluminum alloy 7075 is the most valuable research problem in the field of Ti/Al explosive welding. In this paper, the smooth particle hydrodynamics and molecular dynamics algorithms are used to conduct multi-scale numerical calculations on the explosive welding of Ti6Al4V and 7075. The interface morphology, interface atomic movement, lattice changes and crystal defects are comprehensively analyzed. With the calculation as a reference, the Ti6Al4V/7075 composite with a flat interface is prepared. The calculation results indicate that with the transformation of titanium aluminum crystal structure, a large number of various dislocations, mainly 1/6<110>dislocations, are generated on the titanium side; During explosive welding, uniform and stable element diffusion occurred. Element diffusion mainly occurred in the unloading stage when the pressure was 0. The melting zone and ablation zone were composed of TiAl and TiAl3, respectively; The fundamental reason for the combination of Ti6Al4V/7075 is the diffusion of elements and the solid-phase binding of atoms.

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Section: Introductionmentioning

confidence: 99%

Atomic motion behavior calculation and bonding mechanism analysis of explosive welding of high-strength and high-hardness titanium alloy Ti6Al4V/aluminum alloy 7075

Xiaoming,

Changgen,

Haitao

et al. 2023

Mater. Res. Express

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“…Recently AA2519 has become particularly interesting due to the emergence of a completely new explosion-welded Al-Ti material in which AA2519 aluminum alloy is one of the constituent materials. Consequently, the existence of such a composite has focused the attention of researchers who study its mechanical properties, including static properties, fatigue life and fracture toughness [5][6][7][8]. A completely new application provokes research on this alloy in a new context.…”

Section: Introductionmentioning

confidence: 99%

“…In conclusion, it stated that the described conditions cause improvement in the material's mechanical properties. Our research team also performed tests involving determining the basic mechanical properties for AA2519 under ambient (293 K) and cryogenic conditions (77 K), which are described in the works of [5][6][7][8][18][19][20]. In this article, however, apart from mechanical characteristics describing the material fracture toughness, there are also differences in the specimen fracture appearance obtained for both temperature conditions.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Cryogenic Conditions on the Process of AA2519 Aluminum Alloy Cracking

2020

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This study presents the results of tests involving determining quantities used to describe fracture toughness of a heat-treated AA2519 aluminum alloy applied in, among other things, constructing American military amphibians. These quantities were determined using the J–R curve method for two temperature values, 293 K and 77 K. The low temperature was provided by putting the tested specimen into a liquid nitrogen bath and keeping it there throughout the experiment. Based on the tests results, cryogenic conditions cause an increase in the maximum experimental value of the J–JQ integral, from 66.3 to 87.3 kJ/m2 Moreover, an analysis of the fatigue fracture microstructure revealed differences between specimens tested in ambient temperature and those tested in cryogenic temperature.

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“…Only a few works can be found in the publicly available database of magazines, provides information about selected mechanical properties of explosively welded laminated material AA2519–AA1050–Ti6Al4V. The studies that are available include, among others, works [ 16 , 17 ], which provide results of the determination of the tensile properties for the discussed material, and [ 18 , 19 , 20 ], which provide information on the micro toughness, microstructure and micro phenomena that occur in the material under the influence of mechanical factors. During the analysis of literature on the subject, articles were also encountered in which an attempt was made to determine the fatigue life of the described layered material.…”

Section: Introductionmentioning

confidence: 99%

“…During the analysis of literature on the subject, articles were also encountered in which an attempt was made to determine the fatigue life of the described layered material. These are papers [ 20 , 21 , 22 , 23 ], which address the fatigue life of Al–Ti material. Additionally, the article [ 22 ] presents the analysis of microstructure of fracture samples made of Al–Ti material.…”

Section: Introductionmentioning

confidence: 99%

Analytic Model of Maximal Experimental Value of Stress Intensity Factor KQ for AA2519–AA1050–Ti6Al4V Layered Material

Kotyk

2020

Materials

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The article presents the results of the author’s tests involving the determination of the maximal experimental value of the stress intensity factor KQ. This value was determined for a layered material obtained as the result of explosive welding of three alloys: AA2519, Ti6Al4V and AA1050, and separately for each material. In both cases tests were conducted for two temperatures—the ambient temperature (293 K), and cryogenic temperature (77 K). A model for initial assessment of the KQ value of AA2519–AA1050–Ti6Al4V (Al–Ti) layered material has also been presented. The proposed model has been developed so as to enable the determination of the curve course of load–COD for Al–Ti layered material using nominal stresses defined on the basis of a real load–COD course, obtained for the base materials, for both temperature conditions.

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Fatigue crack growth analysis in Al/Ti layered material in ambient and cryogenic conditions

Cited by 5 publications

References 23 publications

Atomic motion behavior calculation and bonding mechanism analysis of explosive welding of high-strength and high-hardness titanium alloy Ti6Al4V/aluminum alloy 7075

Atomic motion behavior calculation and bonding mechanism analysis of explosive welding of high-strength and high-hardness titanium alloy Ti6Al4V/aluminum alloy 7075

The Influence of Cryogenic Conditions on the Process of AA2519 Aluminum Alloy Cracking

Analytic Model of Maximal Experimental Value of Stress Intensity Factor KQ for AA2519–AA1050–Ti6Al4V Layered Material

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