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Effects of Si, Cu and Mg on the high-temperature mechanical properties of Al-Si-Cu-Mg alloy

  • Zhang Wenda*
  • , Yang Jing
  • , Dang Jingzhi
  • , Liu Yun
  • , Xu Hong
  • *Corresponding author for this work
  • North University of China

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The regression equation of the relationship between Si, Cu and Mg and the mechanical properties of Al-Si-Cu-Mg alloy was established according to the orthogonal experimental results. The microstructure of the Al-Si-Cu-Mg alloy was analyzed with scanning electron microscopy and energy dispersive spectroscopy. The results show that Si, Cu and Mg affected the mechanical properties (tensile strength and elongation rate) at 250 °C most significantly, minimally and negatively, respectively. The interactions between Cu, Mg and Si greatly reduced the high-temperature tensile strength owing to the formation of brittle and hard intermetallic Al5Mg8Cu2Si6. that behaved as the initial crack during stretching.

Original languageEnglish
Title of host publicationAdvances in Materials and Materials Processing
Pages1030-1034
Number of pages5
DOIs
StatePublished - 2013
Externally publishedYes
Event2012 3rd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2012 - Beihai, China
Duration: 22 Dec 201223 Dec 2012

Publication series

NameAdvanced Materials Research
Volume652-654
ISSN (Print)1022-6680

Conference

Conference2012 3rd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2012
Country/TerritoryChina
CityBeihai
Period22/12/1223/12/12

Keywords

  • Al-Si-Cu-Mg alloy
  • High-temperature mechanical property
  • Orthogonal array

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