scholarly journals Effect of nanostructure on phase transformations during heat treatment of 2024 aluminum alloy

2021 ◽  
Author(s):  
K. B. Demétrio ◽  
A.P. G. Nogueira ◽  
C. Menapace ◽  
T. Bendo ◽  
A. Molinari
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Phase Transformations ◽  
2024 Aluminum Alloy

2024 aluminum alloy ultrahigh-strength sheet due to two-level nanostructuring under cryorolling and heat treatment

2020 ◽  
Vol 30 (1) ◽  
pp. 14-26 ◽  
Author(s):  
Stanislav KRYMSKIY ◽  
Oleg SITDIKOV ◽  
Elena AVTOKRATOVA ◽  
Michael MARKUSHEV
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
2024 Aluminum Alloy ◽  
Ultrahigh Strength

Effect of Ageing on Microstructures, Electrical Properties and PALS of Aircraft Al Alloy 2024

2011 ◽  
Vol 319-320 ◽  
pp. 51-59 ◽  
Author(s):  
Abdullah A. Refeay ◽  
N.A. Kamel ◽  
M.A. Abdel-Rahman ◽  
Yahia A. Lotfy ◽  
Emad A. Badawi
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Electrical Properties ◽  
Hardness Test ◽  
Al Alloy ◽  
Property Development ◽  
2024 Aluminum Alloy ◽  
Different Temperatures ◽  
Lcr Meter ◽  
Vickers Hardness Test

A comprehensive and systematic study using PALS technique, Vickers hardness test and electrical LCR meter were undertaken to follow property development during the recently promoted interrupted ageing treatment for 2024 aluminum alloy. In this work, solution heat treatments at different temperatures were performed in aircraft materials 2024 aluminum alloy. This work describes the development of the dependence of mechanical, electrical properties of 2024 Al-alloys on heat treatment to characterize microstructural changes during heat treatment. PALS, mechanical and electrical testing will be used to measure the features of the material as a function of time for each ageing temperatures.

Microstructure Evolution during Solution Heat Treatment of Semisolid Cast 2024 Aluminum Alloy

2011 ◽  
Vol 339 ◽  
pp. 714-717 ◽  
Author(s):  
Siriwan Pannaray ◽  
Sirikul Wisutmethangoon ◽  
Thawatchai Plookphol ◽  
Jessada Wannasin
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Solution Heat Treatment ◽  
Solution Treatment ◽  
Treatment Temperature ◽  
Grain Structure ◽  
Al Alloy ◽  
Solution Treatment Temperature ◽  
2024 Aluminum Alloy ◽  
Semi Solid

The aim of this study is to determine the appropriate solution treatment temperature and time of semi solid 2024 Al alloy. Solution heat treatment at 450°C and 480 °C for various times, from 4 hours to 16 hrs, were applied followed by artificial aging at 220 °C for 1 hr. Microstructure of the semi solid cast 2024 aluminum alloy mainly showed globular grain structure which consisted of matrix-α (Al) and grain boundary (GB) - eutectic phases (α+Al2CuMg/Al2Cu). Eutectic GB phases was found to completely dissolved after solution heat treatment at 480°C for 14 hrs while sample solution treated at 450°C for the same time showed the existence of remaining GB phases. Prolonging heat treatment after 14 hrs at both temperatures resulted in the formation of coarse black particles at the grain boundaries which were identified as Mg2Si phases. Therefore the suitable solution treatment of the alloy in this study was at 480°C for 14 hrs.

Dilatometric and calorimetric studies on the phase transformations of the A380-type aluminum alloy during solidification and heat treatment

2017 ◽  
Vol 130 (3) ◽  
pp. 1751-1757 ◽  
Author(s):  
Verónica Leticia Delgado León ◽  
Alfredo Flores Valdés ◽  
Jesús Torres Torres
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Phase Transformations ◽  
Calorimetric Studies

Effect of Dissimilar Welding on Mechanical Properties of A7050 and A2024 Aluminum Alloy

2011 ◽  
Vol 675-677 ◽  
pp. 689-692
Author(s):  
Chin Chun Chang ◽  
Ji Gang Yang ◽  
Ling Qi ◽  
Chang Pin Chou
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Aluminum Alloy ◽  
Fracture Surface ◽  
Filler Metal ◽  
Precipitation Strengthening ◽  
Dissimilar Welding ◽  
Fracture Type ◽  
Strengthening Phase ◽  
2024 Aluminum Alloy

The effect of dissimilar welding of 7050/2024 aluminum alloy on mechanical properties and microstructure were analyzed and investigated. The post-welding heat treatments of weldments were carried out and recorded for microstructure, tensile test, hardness and fracture surface in different conditions. The experimental results indicate that the post-welding heat treatment, filler metal chose can increase the mechanical properties. The microstructure and fracture surface of dissimilar welding can evaluate the distribution of precipitation strengthening phase in fusion zone, heat affected zone and its fracture type.

The Structure and Frictional Properties of Aluminum Alloy Anodic Oxide Film

2012 ◽  
Vol 538-541 ◽  
pp. 132-135
Author(s):  
Sui Yuan Chen ◽  
Yong Ze Yang ◽  
Jing Liang ◽  
Chang Sheng Liu
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Oxide Film ◽  
Anodic Oxide ◽  
Treatment Temperature ◽  
Wear Loss ◽  
External Diameter ◽  
2024 Aluminum Alloy ◽  
Compact Structure ◽  
Heat Treated

Anodic oxide films were prepared firstly on the surface of a 2024 aluminum alloy. Then the effect of different heat-treatment temperatures on the structure and properties of the films was studied. The results indicate that the construction units of Al2O3 oxide film were composed of tubules less than 100nm in external diameter, and the film became more compact and uniform as a result of the increased temperature after the heat treatments of 100, 150, 200, 250, 300, 350, and 400°C under the protection of a H2 atmosphere. The hardness of the films increased linearly with the increase of heat treatment temperature; whereas the wear loss tended to decrease first and then increase. After being treated at the temperature of 250°C, the hardness reaches 606HV, the wear loss is a minimum of 11mg. The structure of the film heat-treated at 250°C has a compact structure, higher hardness, and the best wear resistance.

Microstructure Examination of Electromagnetic Casting 2024 Aluminum Alloy Ingots

2007 ◽  
Vol 44 (6) ◽  
pp. 290-298 ◽  
Author(s):  
Aleksandra Pataric ◽  
Zvonko Gulisija ◽  
Srdjan Markovic
Keyword(s):  
Aluminum Alloy ◽  
2024 Aluminum Alloy ◽  
Electromagnetic Casting ◽  
Microstructure Examination
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