Porosities and fatigue property of two A356 cast aluminum alloy

Yuan Bin Zhang, Cheng Xin Teng, Tong Guang Zhai

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

Abstract

To investigate the fatigue property of A356 cast aluminum alloy, the pore size distribution in two kinds of A356 alloy were statistically tested, and the S-N curves were plotted by conducting four-point bend fatigue test, then the fractography of the fatigue specimens were examined under scan electron microscope (SEM). It was indicated that the fatigue strength of the A356.2 alloy contenting more large pores and rougher crystalline grain was lower than that of A356.1 alloy, though the yield strength of A356.2 alloy was higher. Most of the fatigue cracks initiated from the pores that located on or close to the surface of the specimens, and the fracture of the specimens were induced from the growth of multi-sites initiated fatigue crack.

Original languageEnglish
Title of host publicationApplied Materials and Technologies for Modern Manufacturing
Pages263-266
Number of pages4
DOIs
StatePublished - 2013
Event3rd International Conference on Applied Mechanics, Materials and Manufacturing, ICAMMM 2013 - Dalian, China
Duration: Aug 24 2013Aug 25 2013

Publication series

NameApplied Mechanics and Materials
Volume423-426
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference3rd International Conference on Applied Mechanics, Materials and Manufacturing, ICAMMM 2013
Country/TerritoryChina
CityDalian
Period8/24/138/25/13

Keywords

  • A356 cast aluminum alloy
  • Fatigue property
  • Pore

ASJC Scopus subject areas

  • Engineering (all)

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