Paper Title:
The Metallurgy of Homogenisation
  Abstract

Homogenisation of aluminium alloys is the high temperature heat treatment (450-600 °C) performed after casting and consists of three distinct steps; heat-up, soak and cooldown. This review considers the metallurgical importance of homogenisation and how it impacts on the further processing and final properties of some aluminium alloys, with emphasis on homogenisation of extrusion billet. The introduction of continuous homogenisation has significantly improved the temperature uniformity of homogenisation allowing the soak time to be minimised. Batch homogenisation, however, provides flexibility in practices tailored for different aluminium alloys. Soft 6060 and 6063 alloys are best homogenised at a higher soak temperature than harder alloys such as 6061 and 6082. The homogenisation cooling rate can also impact on the behaviour of the billet during extrusion processing as well as affecting the final mechanical properties. An understanding of the microstructural changes occurring as a result of homogenisation allows the cast house to ensure that the billet processing meets the customer requirements.

  Info
Periodical
Chapter
Chapter 8: Alloys and Heat Treatment
Edited by
A.Prasad, J.A. Taylor and J.F. Grandfield
Pages
264-275
DOI
10.4028/www.scientific.net/MSF.693.264
Citation
B. Rinderer, "The Metallurgy of Homogenisation", Materials Science Forum, Vol. 693, pp. 264-275, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jun Xu, Shao Ming Zhang, Bi Cheng Yang, Li Kai Shi, Z. Fan
Abstract:A new rheo-extrusion technique has been developed to produce extruded profiles. The AZ31 slurry is fabricated by a twin-screw mechanism, and...
713
Authors: Futoshi Kido, Tetsuichi Motegi
Abstract:In order to produce AZ91 and AZ31 magnesium alloy billets semisolid continuous casting by using an inclined cooling plate was carried out....
1403
Authors: Da Zhi Zhao, Fu Xiao Yu, Fang Liu, Ke Zhun He
Chapter 2: Micro / Nano Materials
Abstract:The billets of AlMg0.9Si0.7 alloy, which were cast through the direct chill (DC) casting process of low superheat, were...
549
Authors: Laurens Katgerman, Dmitry G. Eskin
Chapter 1: Invited Lectures
Abstract:Research activities on aluminium production technology focus on the successive steps in the production chain of aluminium wrought products....
43