✦ LIBER ✦

Fracture of laminates combining 2024-T3 and 7075-T6 aluminum alloys

✍ Scribed by J.A. Alic; A. Danesh

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 811 KB
Volume: 10
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(78)90001-2

No coin nor oath required. For personal study only.

✦ Synopsis

Crack growth resistance curves have been determined for crack-divider laminates in which layers of 2024T3 aluminum alloy are adhesively bonded to layers of 7075-T6 alloy. Results are compared with the fracture resistance of laminates consisting wholly of each material, the layer thickness being the same (I.54 mm) in all cases. The initial portions of the resistance curves are similar for both alloys; however those for 2024T3 have steeper slopes at longer effective crack lengths. As a result, laminates consisting entirely of 2024T3 alloy exhibit greater amounts of stable crack extension and higher toughnesses at instability. This is attributed in part to the greater strain hardening rate in 2024-T3 material. Laminates combining 2024-T3 and 7075-T6 layers are intermediate between those consisting entirely of one or the other alloy.

📜 SIMILAR VOLUMES

Effect of aging time and temperature on

Effect of aging time and temperature on exfoliation corrosion of aluminum alloys 2024-T3 and 7075-T6

✍ F. M. Khoshnaw; R. H. Gardi 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 German ⚖ 141 KB 👁 1 views

## Abstract Two types of aluminum alloys, 2024‐T3 and 7075‐T6, have been selected in this study to investigate the effect of metallurgical aspects on exfoliation corrosion. To determine and evaluate the metallurgical effects of heat treatments on corrosion behaviour of these alloys, G34 ASTM test w

Fatigue crack propagation rate at low ΔK

Fatigue crack propagation rate at low ΔK of two aluminum sheet alloys, 2024-T3 and 7075-T6

✍ T.L. Mackay 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 434 KB

For transport aircraft with long lifetimes, crack growth data to implement the durability life requirements in the low AK range are needed. This is the region comprising most of the lifetime for the cracks of interest, and it is also the region where there is little data available. Crack growth data

Study of the potential electrochemical n

Study of the potential electrochemical noise during corrosion process of aluminum alloys 2024, 7075 and pure aluminum

✍ Y. L. Cheng; Z. Zhang; F. H. Cao; J. F. Li; J. Q. Zhang; J. M. Wang; C. N. Cao 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 German ⚖ 572 KB

## Abstract Properties of the potential electrochemical noises (EN) generated during the corrosion process of aluminum alloys AA2024(T3), AA7075 (aged at 121°C/35 h + 160°C/20 h) and pure aluminum in 3wt% (mass fraction) NaCl solution were investigated in this study. During the initial stage of imm

Grain refinement process in commercial 7

Grain refinement process in commercial 7075-T6 aluminum alloy under friction stir welding and superplasticity

✍ Y. Motohashi; T. Sakuma; A. Goloborodko; T. Ito; G. Itoh 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 296 KB

## Abstract **About the influence of substrate roughness and spray particle size on the adhesion of thermal spray coatings** Process of grain refinement taking place during friction stir welding of a 7075‐T6 Al alloy was studied. It appears that the fine‐grained structure is formed by the grain fr

The effect of sheet thickness on fatigue

The effect of sheet thickness on fatigue crack retardation in 2024-T3 aluminum alloy

✍ W.J. Mills; R.W. Hertzberg 📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 794 KB

Variable-amplitude fat@ue studies of 2024-13 ab&num alloy were performed to examine the effect of sheet thickness on fatigue crack growth rate retardation. Results indicated tbat the amouot of retardation increased with decreasing specimen thickness. This phenomenon was attrii to enhanced plastic st

Prediction of low-cycle fatigue-life by

Prediction of low-cycle fatigue-life by acoustic emission—1: 2024-T3 aluminum alloy

✍ J. Baram; M. Rosen 📂 Article 📅 1981 🏛 Elsevier Science 🌐 English ⚖ 1008 KB

Low-cycle fatigue tests were conducted by tension-tension until rupture, on a 2026T3 aluminum alloy sheet. Initial crack sizes and orientations in the fatigue specimens were found to be randomly distributed. Acoustic emission was continuously monitored during the tests. Every few hundred cycles, the