Investigation of compression behavior of Mg-4Zn-2(Nd, Gd)-0.5Zr at 350°C by in situ synchrotron radiation diffraction

R. H. Buzolin, D. Tolnai, C. L. Mendis, Andreas Stark, N. Schell, H. Pinto, K. U. Kainer, N. Hort

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

Abstract

As-cast Mg-4Zn-0.5Zr, Mg-4Zn-2Gd-0.5Zr and Mg-4Zn-2Nd- 0.5Zr alloys were investigated by in situ synchrotron radiation diffraction during hot compression at 350 °C using the facilities of P07 beamline of Petra III at Deutsches Elektronen Synchrotron (DESY), Hamburg, Germany. The specimens were heated at a rate of 100 K/min and compressed with an initial strain rate of 1.1 x 10"3 s"1 up to 30 % strain. The addition of rare earth elements improved the yield strength from 23 MPa in the Mg-4Zn-0.5Zr alloy up to 40 MPa in the alloy with Nd and Gd. Continuous dynamic recrystallization played an important role in the Mg-4Zn- 0.5Zr alloy during deformation and twinning was not dominant. Discontinuous dynamic recrystallization was observed in the in the Mg-4Zn-2Gd-0.5Zr along the grain boundary regions while the grains remained largely without any recrystallization. In the Mg-4Zn-2Gd-0.5Zr and Mg-4Zn-2Nd-0.5Zr alloys the contribution of twinning to deformation was observed at 350 °C. Reasons for these differences will be discussed with respect to microstructures of the alloys.

Original languageEnglish
Title of host publicationMagnesium Technology 2015 - Held During TMS 2015 144th Annual Meeting and Exhibition
PublisherThe Minerals, Metals and Materials Society
Pages103-107
Number of pages5
Volume2015-January
ISBN (Electronic)9781119082439
Publication statusPublished - 1 Jan 2015
Externally publishedYes
EventMagnesium Technology 2015 - TMS 2015 144th Annual Meeting and Exhibition - Orlando, United States
Duration: 15 Mar 201519 Mar 2015

Conference

ConferenceMagnesium Technology 2015 - TMS 2015 144th Annual Meeting and Exhibition
CountryUnited States
CityOrlando
Period15/03/1519/03/15

Fingerprint

Synchrotron radiation
Diffraction
Dynamic recrystallization
Twinning
Hot pressing
Rare earth elements
Synchrotrons
Yield stress
Strain rate
Grain boundaries
Microstructure

Keywords

  • Deformation behaviour
  • In situ
  • RE additions
  • Synchrotron radiation
  • ZK40

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Buzolin, R. H., Tolnai, D., Mendis, C. L., Stark, A., Schell, N., Pinto, H., ... Hort, N. (2015). Investigation of compression behavior of Mg-4Zn-2(Nd, Gd)-0.5Zr at 350°C by in situ synchrotron radiation diffraction. In Magnesium Technology 2015 - Held During TMS 2015 144th Annual Meeting and Exhibition (Vol. 2015-January, pp. 103-107). The Minerals, Metals and Materials Society.

Investigation of compression behavior of Mg-4Zn-2(Nd, Gd)-0.5Zr at 350°C by in situ synchrotron radiation diffraction. / Buzolin, R. H.; Tolnai, D.; Mendis, C. L.; Stark, Andreas; Schell, N.; Pinto, H.; Kainer, K. U.; Hort, N.

Magnesium Technology 2015 - Held During TMS 2015 144th Annual Meeting and Exhibition. Vol. 2015-January The Minerals, Metals and Materials Society, 2015. p. 103-107.

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

Buzolin, RH, Tolnai, D, Mendis, CL, Stark, A, Schell, N, Pinto, H, Kainer, KU & Hort, N 2015, Investigation of compression behavior of Mg-4Zn-2(Nd, Gd)-0.5Zr at 350°C by in situ synchrotron radiation diffraction. in Magnesium Technology 2015 - Held During TMS 2015 144th Annual Meeting and Exhibition. vol. 2015-January, The Minerals, Metals and Materials Society, pp. 103-107, Magnesium Technology 2015 - TMS 2015 144th Annual Meeting and Exhibition, Orlando, United States, 15/03/15.
Buzolin RH, Tolnai D, Mendis CL, Stark A, Schell N, Pinto H et al. Investigation of compression behavior of Mg-4Zn-2(Nd, Gd)-0.5Zr at 350°C by in situ synchrotron radiation diffraction. In Magnesium Technology 2015 - Held During TMS 2015 144th Annual Meeting and Exhibition. Vol. 2015-January. The Minerals, Metals and Materials Society. 2015. p. 103-107
Buzolin, R. H. ; Tolnai, D. ; Mendis, C. L. ; Stark, Andreas ; Schell, N. ; Pinto, H. ; Kainer, K. U. ; Hort, N. / Investigation of compression behavior of Mg-4Zn-2(Nd, Gd)-0.5Zr at 350°C by in situ synchrotron radiation diffraction. Magnesium Technology 2015 - Held During TMS 2015 144th Annual Meeting and Exhibition. Vol. 2015-January The Minerals, Metals and Materials Society, 2015. pp. 103-107
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abstract = "As-cast Mg-4Zn-0.5Zr, Mg-4Zn-2Gd-0.5Zr and Mg-4Zn-2Nd- 0.5Zr alloys were investigated by in situ synchrotron radiation diffraction during hot compression at 350 °C using the facilities of P07 beamline of Petra III at Deutsches Elektronen Synchrotron (DESY), Hamburg, Germany. The specimens were heated at a rate of 100 K/min and compressed with an initial strain rate of 1.1 x 10{"}3 s{"}1 up to 30 {\%} strain. The addition of rare earth elements improved the yield strength from 23 MPa in the Mg-4Zn-0.5Zr alloy up to 40 MPa in the alloy with Nd and Gd. Continuous dynamic recrystallization played an important role in the Mg-4Zn- 0.5Zr alloy during deformation and twinning was not dominant. Discontinuous dynamic recrystallization was observed in the in the Mg-4Zn-2Gd-0.5Zr along the grain boundary regions while the grains remained largely without any recrystallization. In the Mg-4Zn-2Gd-0.5Zr and Mg-4Zn-2Nd-0.5Zr alloys the contribution of twinning to deformation was observed at 350 °C. Reasons for these differences will be discussed with respect to microstructures of the alloys.",
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AU - Buzolin, R. H.

AU - Tolnai, D.

AU - Mendis, C. L.

AU - Stark, Andreas

AU - Schell, N.

AU - Pinto, H.

AU - Kainer, K. U.

AU - Hort, N.

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N2 - As-cast Mg-4Zn-0.5Zr, Mg-4Zn-2Gd-0.5Zr and Mg-4Zn-2Nd- 0.5Zr alloys were investigated by in situ synchrotron radiation diffraction during hot compression at 350 °C using the facilities of P07 beamline of Petra III at Deutsches Elektronen Synchrotron (DESY), Hamburg, Germany. The specimens were heated at a rate of 100 K/min and compressed with an initial strain rate of 1.1 x 10"3 s"1 up to 30 % strain. The addition of rare earth elements improved the yield strength from 23 MPa in the Mg-4Zn-0.5Zr alloy up to 40 MPa in the alloy with Nd and Gd. Continuous dynamic recrystallization played an important role in the Mg-4Zn- 0.5Zr alloy during deformation and twinning was not dominant. Discontinuous dynamic recrystallization was observed in the in the Mg-4Zn-2Gd-0.5Zr along the grain boundary regions while the grains remained largely without any recrystallization. In the Mg-4Zn-2Gd-0.5Zr and Mg-4Zn-2Nd-0.5Zr alloys the contribution of twinning to deformation was observed at 350 °C. Reasons for these differences will be discussed with respect to microstructures of the alloys.

AB - As-cast Mg-4Zn-0.5Zr, Mg-4Zn-2Gd-0.5Zr and Mg-4Zn-2Nd- 0.5Zr alloys were investigated by in situ synchrotron radiation diffraction during hot compression at 350 °C using the facilities of P07 beamline of Petra III at Deutsches Elektronen Synchrotron (DESY), Hamburg, Germany. The specimens were heated at a rate of 100 K/min and compressed with an initial strain rate of 1.1 x 10"3 s"1 up to 30 % strain. The addition of rare earth elements improved the yield strength from 23 MPa in the Mg-4Zn-0.5Zr alloy up to 40 MPa in the alloy with Nd and Gd. Continuous dynamic recrystallization played an important role in the Mg-4Zn- 0.5Zr alloy during deformation and twinning was not dominant. Discontinuous dynamic recrystallization was observed in the in the Mg-4Zn-2Gd-0.5Zr along the grain boundary regions while the grains remained largely without any recrystallization. In the Mg-4Zn-2Gd-0.5Zr and Mg-4Zn-2Nd-0.5Zr alloys the contribution of twinning to deformation was observed at 350 °C. Reasons for these differences will be discussed with respect to microstructures of the alloys.

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