Corrosion and creep resistance of Thixomolded® magnesium alloys

R. Buzolin*, H. Dieringa, C. Blawert, H. Frank, C. L. Mendis, A. Lohmüller, K. U. Kainer, N. Hort

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Process optimization is one pathway to maximizing strength of a given alloy. Thixomolding® is a semi-solid casting process that combines pores reduction with a typical bimodal grain size distribution that can lead to enhanced strength. AZ91D and AZX911 were processed via Thixomolding® using two different processing conditions to change fraction solid of primary particles at the point of injection into the mould. The tensile properties, creep resistance and corrosion behaviour of the alloys were investigated. The creep resistance was measured in the range of 135–150 °C for stresses of 50–85 MPa. The corrosion behaviour was measured via hydrogen evolution for the two alloys and was smaller than that for die-cast AZ91. The AZX911 alloy showed improved creep resistance compared to the AZ91D. The differences in the property profile of the chosen alloys are correlated with their chemical compositions as well as with different microstructures obtained through the different processing conditions.

Original languageEnglish
Title of host publicationMagnesium Technology 2017
PublisherSpringer International Publishing AG
Pages381-389
Number of pages9
ISBN (Print)9783319523910
DOIs
Publication statusPublished - 1 Jan 2017
Externally publishedYes
EventInternational Symposium on Magnesium Technology, 2017 - San Diego, United States
Duration: 26 Feb 20172 Mar 2017

Publication series

NameMinerals, Metals and Materials Series
VolumePart F8
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

ConferenceInternational Symposium on Magnesium Technology, 2017
CountryUnited States
CitySan Diego
Period26/02/172/03/17

Keywords

  • AZ91
  • AZX911
  • Corrosion resistance
  • Creep resistance
  • Magnesium alloys
  • Thixomolding®

ASJC Scopus subject areas

  • Metals and Alloys
  • Materials Chemistry
  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials
  • Energy Engineering and Power Technology

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