Transient crack growth behavior in aluminum alloys C415-T8 and 2519-T87

Hamilton, BC; Saxena, Ashok

doi:10.1016/s0013-7944(98)00084-8

Cited by 14 publications

(2 citation statements)

References 14 publications

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“…Aluminum alloy 2519 is wildly used in military vehicles since it has low specific density, good ballistic resistance properties, corrosion-resistance and high strength [1,2] . Since 2000's several researchers have intensively investigated a new version of 2519 alloy with higher Cu/Mg ratio in order to improve its mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Severe Plastic Deformation at Ambient Temperature on Microstructures and Mechanical Properties of Aluminum Alloy 2519

Liu

Cheng

Wang

et al. 2013

MSF

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The effect of severe plastic deformation at ambient temperature on microstructures and mechanical properties of aluminum alloy 2519 was investigated by means of tensile test, micro-hardness test, optical microscopy and scanning electron microscopy. The results showed that tensile strength of as-queched 2519 alloy was greatly enhanced to nearly 550MPa (ultimate tensile strength, UTS) and 520MPa (yield strength, YS) by severe cold rolling or equal channel angular processing (ECAP) while the elongation decreased to 5%. The 2519 alloy could obtain quite well mechanical properties as much as 80 % and 12 passes cold rolling deformation. This indicated that pre-deformation by ECAP is effective in improving the mechanical properties of 2519 alloy by grain refinement, strain aging and high density dislocations.

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Section: Introductionmentioning

confidence: 99%

Effect of Severe Plastic Deformation at Ambient Temperature on Microstructures and Mechanical Properties of Aluminum Alloy 2519

Liu

Cheng

Wang

et al. 2013

MSF

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“…The effect of creep can be evaluated by creep rupture tests while the localized creep can be evaluated by creep crack growth tests. In creep crack tests, C * or C t parameter is suitable at high temperature to characterize the stress state of crack tip [1]. The analysis of the deformation and crack growth at high temperature has been evaluated using the change in micro-structure, especially cavitation growth [2,3].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Cavity on the Creep Fracture in P92 and P122 Steels and Its Detection by Intelligent Phased Array Ultrasound

Jeong

Bae

Lim

2006

KEM

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The results of cavity inspection in uniaxial creep tests and creep crack growth tests were compared to determine the cavity effect. The quantity of the cavities increased with increasing strain and crack growth rate as stress and temperature were increased. This resulted in the change of da/dt vs Ct. The increased rate in the number and size of the cavities in P92 steel with temperature was relatively fast, resulting in the high rate of da/dt against Ct. In this study, to determine the characteristics of defects in structure, the sub surface defects of P92 and P122 steels were investigated by an intelligent phased array ultrasonic inspection system. The system was found to be capable of detecting the creep crack length and the formation of cavities at the crack tip.

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