Effects of Rotary Swaging Parameters and Artificial Ageing on Mechanical Properties and Microstructure of 2024 Precipitation-Hardenable Aluminium Alloy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F20%3AN0000024" target="_blank" >RIV/26316919:_____/20:N0000024 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1996-1944/13/1/143/htm" target="_blank" >https://www.mdpi.com/1996-1944/13/1/143/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma13010143" target="_blank" >10.3390/ma13010143</a>

Result language

angličtina

Original language name

Effects of Rotary Swaging Parameters and Artificial Ageing on Mechanical Properties and Microstructure of 2024 Precipitation-Hardenable Aluminium Alloy

Original language description

This work concerns mechanical properties in relation to microstructural changes in hardenable EN AW-2024 aluminium alloy in wrought and heat treated condition. The treated material benefits from synergistic effects of hardening mechanisms. Grain boundary strengthening and work hardening were activated in this material by rotary swaging. Rotary swaging is a method which shows great promise for industrial use. Precipitation hardening was achieved thanks to the material's age hardening ability. First, the material was artificially-aged in a furnace at 140-180 degrees C. Second, natural ageing was used. Mechanical properties of the as-treated material were tested and microstructural processes were explored using electron microscopy and differential scanning calorimetry. The treatment route which delivered the best results was as follows: solution annealing 500 degrees C/1 h + water cooling + rotary swaging + artificial ageing 160 degrees C/21 h. This led to a yield strength close to 640 MPa, and ultimate strength above 660 MPa, and elongation of 8%. Electron backscatter diffraction observation revealed that in this condition, the ratio of Low-angle to High-angle grain boundaries is 80:20. The microstructure contains both T-phase in the interior of grains, whose particles are normally oval-shaped, and S-phase, which is present in two shapes: small oval particles or coherent needles aligned to < 100 > direction.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/LO1412" target="_blank" >LO1412: Development of the West Bohemian Centre of Materials and Metallurgy</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

MATERIALS

ISSN

1996-1944

e-ISSN

1996-1944

Volume of the periodical

13

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

nestránkováno

UT code for WoS article

000515499300143

EID of the result in the Scopus database

2-s2.0-85078933066