Paper Title:
Influence of Temperature and Strain Rate on the Plastic Deformation of Two Commercial High Strength Al Alloys
  Abstract

In the present study the influence of strain rate and temperature on the behaviour of two commercial aluminium alloys, 6063-T6 and 7030-T6, was investigated. Both alloys are high strength precipitation hardened alloys that are expected to have low strain rate and temperature sensitivity. Tensile tests were performed at room temperature at strain rates ranging from 10-4 to 102 s-1, and at -40°C and +60°C at strain rates of 10-4 and 10-1 s-1, due to equipment limitations. Both alloys showed low but positive strain rate sensitivity at all temperatures. Also the temperature sensitivity was low, showing negative values in all cases. The dependence of the flow stress on temperature was more pronounced than the strain rate dependence. The area reduction at fracture was higher in 6063 than 7030, although the uniform elongation was larger in 7030. 6063 showed almost no strain rate dependence of the ductility and a limited reduction with increased temperature. 7030 showed markedly increasing area reduction with increasing temperature and decreasing values with increasing strain rate. The energy absorption was higher in 7030 by a factor of approximately three.

  Info
Periodical
Materials Science Forum (Volumes 519-521)
Edited by
W.J. Poole, M.A. Wells and D.J. Lloyd
Pages
841-846
DOI
10.4028/www.scientific.net/MSF.519-521.841
Citation
M. Johansson, M. Hörnqvist, B. Karlsson, "Influence of Temperature and Strain Rate on the Plastic Deformation of Two Commercial High Strength Al Alloys", Materials Science Forum, Vols. 519-521, pp. 841-846, 2006
Online since
July 2006
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: Zhi Guo Chen, Zi Qiao Zheng, Dong Feng Han
Abstract:The hot deformation behaviors and microstructure in Al-Cu-Li alloy containing small amount of Ag and Mg were investigated by transmission...
1925
Authors: Young Seok Song, M.R. Lee, Jeong Tae Kim
Abstract:Alloy 718 ingot with a diameter of 400mm was made by the vacuum melting process ; VIM followed by VAR. Compression tests were conducted on...
3124
Authors: Xiao Yu Zhong, Guang Jie Huang, Fang Fang He, Qing Liu
Abstract:Uni-axial tensile plastic deformation behavior of rolled magnesium alloy AZ31B under the temperature range from room temperature(RT) to 250°C...
219
Authors: Iram Raza Ahmad, Dong Wei Shu
Abstract:Magnesium alloys have been increasingly used in automobile, aerospace, consumer electronics and communication industries due to their low...
60
Authors: Faramarz Fereshteh Saniee, Farzan Barati
Chapter 5: Welding & Joining
Abstract:One of the ways for determination of flow curves is the application of a ring test. Using this method, friction in the interface between the...
1339