Influences of metastable θ″, θ′ and stable θ intermetallics formed during cryorolling and friction stir welding process on AA2219

Babu, K. Kamal; Panneerselvam, K.; Sathiya, P.; Haq, A. Noorul; Sundarrajan, S.; Mastanaiah, P.; Murthy, C. V. Srinivasa

doi:10.1016/j.jallcom.2017.10.212

Cited by 12 publications

(5 citation statements)

References 18 publications

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“…The grain boundaries of the LNR50U and LNR50C alloy are not clearly visible, as in the T87 condition, due to the heavy deformation of the alloy during the rolling process. The cryorolled material exhibits a cellular structure due to higher plastic deformation when compared with the RTR material 16 . The extent of cellular structure and fragmented grains is maximum in the LNR50C cross rolled alloys when compared with the other rolled condition.…”

Section: Resultsmentioning

confidence: 97%

Effect of crack path and high angle grain boundaries on fracture toughness and fatigue behaviour of cryorolled AA2219

Blessto

Sivaprasad

Muthupandi

et al. 2020

Fatigue Fract Eng Mat Struct

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AA2219 aerospace alloys in T87 condition were rolled at room temperature and subzero temperature, followed by analysis on its tensile, fracture toughness and fatigue crack growth characteristics. The cryorolled alloy exhibits lower plane stress fracture toughness (50 kJ m −2) than T87 condition (99 kJ m −2) because of higher high angle grain boundaries (HAGBs) which causes an inability to withstand the cyclic deformation. Nevertheless, the cryorolled alloy has shown higher tensile properties and crack growth resistance due to finer grains and large plastic zone size in the crack tip. The unidirectional rolled samples undergo a distinctive zigzag path than the cross-directional rolled alloy because of deflection from the orderly oriented second phase particles.

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Section: Resultsmentioning

confidence: 97%

Effect of crack path and high angle grain boundaries on fracture toughness and fatigue behaviour of cryorolled AA2219

Blessto

Sivaprasad

Muthupandi

et al. 2020

Fatigue Fract Eng Mat Struct

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“…Further, Noor et al [16] reported AA2219 and AA7475 dissimilar aluminum alloy and observed that in nugget zone there is a lot of grain refinement. Kamalbabu et al [17] reported FSW study on AA2219/PP and evidenced irregular shape area and a minor interfacial irregularity may be observed in the thread hole of the hybrid AA2219/PP interface. Anderson et al [18] 2219-T87 a combination of plasticity induced crack and uneven crack propagation rates of the base material were related to roughness-induced cracks.…”

Section: Journal Of Mines Metals and Fuelsmentioning

confidence: 99%

A Review on Tensile, Microhardness and Microstructural Properties of Aluminum AA2219 Alloy Joints Obtained by Friction Stir Welding Process.

Biradar,

Patil

2023

jmmf

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A high strength of aluminium alloy is entitled AA2219. It has been majorly used in aircraft and the construction of cryogenic fuel tanks in missiles. A novel solid-state joining technique named as friction stir welding (FSW) has been proven to be capable of joining advanced materials like AA2219 alloy with better quality of joints. Various researchers are studied the joint properties of FSW and reported better corrosion resistance, natural heat protection, microstructural and mechanical properties. This review study emphasizes various joint characteristics of AA2219 alloy, such as tensile, microhardness, and microstructural characteristics of joints are obtained by FSW.

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“…In addition, the solid solubility of Cu would be increased in ultrasonic conditions, which acted as a pining effect to increase the strength of the Al alloy during the deformation process. Moreover, due to the difference in atomic matching between Cu and Al, the dislocation density would be increased with the increase in Cu content in the Al matrix, which increases the ability of the material to resist deformation and enhance the strength [41]. When the eutectic phase area fraction was high with DC, the eutectic phase Al 2 Cu hardness value was higher than that of the Al matrix [42].…”

Section: Effect Of Ultrasonic Treatment On Mechanical Propertiesmentioning

confidence: 99%

The microstructure and mechanical properties of 2219 alloy during ultrasonic treatment

Jiang

et al. 2023

Materials Science and Technology

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High-intensity ultrasonic melt treatment technique plays a key role in improving the performance of large-scale 2219 alloy ingot (Φ630 mm × 4500 mm). In this current paper, ultrasonic treatment-assisted casting techniques were developed and applied to manufacture large-scale 2219 aluminium (Al) alloy ingot in direct chill casting (DC). The industry-level experiments revealed that the α-Al grains of the ingot with ultrasonic (USDC) were refined, the area fraction of the coarse Al2Cu eutectic phase showed a decreasing trend, and the mechanical properties were lightly improved than without ultrasonic ingot (DC). Based on the present results and previous proposed hypotheses, the synergistic effects of cavitation and acoustic streaming were considered as the dominant mechanisms of USDC.

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Influences of metastable θ″, θ′ and stable θ intermetallics formed during cryorolling and friction stir welding process on AA2219

Cited by 12 publications

References 18 publications

Effect of crack path and high angle grain boundaries on fracture toughness and fatigue behaviour of cryorolled AA2219

Effect of crack path and high angle grain boundaries on fracture toughness and fatigue behaviour of cryorolled AA2219

A Review on Tensile, Microhardness and Microstructural Properties of Aluminum AA2219 Alloy Joints Obtained by Friction Stir Welding Process.

The microstructure and mechanical properties of 2219 alloy during ultrasonic treatment

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