Experimental investigations into the deformation behavior of thixo-molded Mg AZ61L sheet alloy

Muammer Koç, Orner Necati Cora, Ryan Snell, Ray Decker, Jack Huang

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

Abstract

Deformation behavior and formability limits of thixo-molded Mg AZ61L alloy and regular Mg AZ61 alloy sheets (with similar chemical compositions except for Mn content) were experimentally investigated at elevated temperature. Tensile (uniaxial), hydraulic bulge (biaxial) tests as well as closed-die hydroforming tests were conducted to understand the material behavior at temperatures ranging from 25°C to 300°C and strain rates at 0.0013, 0.013 and 0.13 s -1. It was found that flow stress and the maximum plastic strain increased with increasing temperature and decreasing strain rate. Closed-die wann hydroforming tests were also performed to determine the process window for the sheet alloy. Die cavity filling ratios and thinning of the sheet blanks were measured with non-contact optical photogrammetry. Results indicated that lower strain rates and higher temperatures increase formability, particularly above temperatures of 200°C.

Original languageEnglish
Title of host publicationMagnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition
Pages413-418
Number of pages6
Publication statusPublished - 15 May 2012
Externally publishedYes
EventMagnesium Technology 2012 - TMS 2012 Annual Meeting and Exhibition - Orlando, FL, United States
Duration: 11 Mar 201215 Mar 2012

Publication series

NameMagnesium Technology
ISSN (Print)1545-4150

Other

OtherMagnesium Technology 2012 - TMS 2012 Annual Meeting and Exhibition
CountryUnited States
CityOrlando, FL
Period11/3/1215/3/12

    Fingerprint

Keywords

  • AZ61L
  • Bulge test
  • Magnesium alloys
  • Thixomolding
  • Uniaxial test
  • Warm hydroforming

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Koç, M., Cora, O. N., Snell, R., Decker, R., & Huang, J. (2012). Experimental investigations into the deformation behavior of thixo-molded Mg AZ61L sheet alloy. In Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition (pp. 413-418). (Magnesium Technology).