"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Effects of precipitation behaviors on the microstructure and fracture toughness of Al Cu Mg aluminum alloys

Y. ZHAO1, C. C. WANG2, X. WANG1,3,* , J. C. HUANG3, G. F. ZHANG1, M. T. WANG1, Z. C. ZHANG1, M. WU1

Affiliation

  1. School of Mechanical Engineering, Liaoning Shihua University, Fushun 113001, P. R. China
  2. School of Materials Science and Engineering, Tsinghua University, Beijing 100084 , P. R. China
  3. Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, R. O. China

Abstract

In this paper, the effect s of microstructure on fracture toughness were studied in Al Cu Mg alloy, including 2024 and 2124. As the ratio of Cu and Mg was similar in both alloys, the impurity elements in 2024 would lead to the formation of A1 6 (Mn Fe) and Al 7 Cu 2 Fe phase s, which could affect the tensile strength and fracture toug hness of the alloy. With the high Si content in 2024, θ (Mg 2 Si) phase formed in matrix would impose negative factor in decreasing the mechanical property..

Keywords

Aluminium alloy, Precipitation, Fracture Toughness, Microstructure.

Citation

Y. ZHAO, C. C. WANG, X. WANG, J. C. HUANG, G. F. ZHANG, M. T. WANG, Z. C. ZHANG, M. WU, Effects of precipitation behaviors on the microstructure and fracture toughness of Al Cu Mg aluminum alloys, Optoelectronics and Advanced Materials - Rapid Communications, 10, 7-8, July-August 2016, pp.583-589 (2016).

Submitted at: July 15, 2015

Accepted at: Aug. 3, 2016