In-situ synchrotron investigation of the phases- and their morphology-development in Mg–Nd–Zn alloys: Paper presented at the Symposium “Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons” of the MSE 2018, 26–28 September 2018, Darmstadt, Germany

Domonkos Tolnai; Tungky Subroto; Serge Gavras; Ricardo Henrique Buzolin; Norbert Hort

doi:https://doi.org/10.3139/146.111786

In-situ synchrotron investigation of the phases- and their morphology-development in Mg–Nd–Zn alloys: Paper presented at the Symposium “Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons” of the MSE 2018, 26–28 September 2018, Darmstadt, Germany

Domonkos Tolnai, Tungky Subroto, Serge Gavras, Ricardo Henrique Buzolin, Norbert Hort

Institute of Materials Science, Joining and Forming (3030)

Research output: Contribution to journal › Article › peer-review

Abstract

The addition of Zn to the Mg–Nd system improves the yield strength and creep resistance, however its influence on the intermetallic phases in the ternary system is not yet fully understood. Understanding the sequence of phase-formation and phase-evolution during solidification and processing is essential to microstructure design. The solidification was investigated with in-situ synchrotron radiation-diffraction and tomography during cooling from the molten state to 200°C to investigate the phase-formation and transformation characteristics. The solidification starts with α-Mg followed by two distinct intermetallic phases T2 and T3. The results suggest that Zn stabilizes the Mg3Nd phase and accelerates precipitate formation. The dendritic morphology changes during solidification towards coarser shapes, thus impedes feeding and promotes hot tearing.

Original language	English
Pages (from-to)	4-10
Number of pages	7
Journal	International Journal of Materials Research
Volume	111
Issue number	1
DOIs	https://doi.org/10.3139/146.111786
Publication status	Published - Jan 2020
Event	2018 Materials Science and Engineering - Darmstadt, Germany Duration: 26 Sept 2018 → 28 Sept 2018 https://www.mse-congress.de/home/

Keywords

In situ
MgNdZn alloys
Solidification
Synchrotron diffraction
Synchrotron tomography

ASJC Scopus subject areas

Condensed Matter Physics
Metals and Alloys
Materials Chemistry
Physical and Theoretical Chemistry

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Tolnai, D., Subroto, T., Gavras, S., Buzolin, R. H., & Hort, N. (2020). In-situ synchrotron investigation of the phases- and their morphology-development in Mg–Nd–Zn alloys: Paper presented at the Symposium “Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons” of the MSE 2018, 26–28 September 2018, Darmstadt, Germany. International Journal of Materials Research , 111(1), 4-10. https://doi.org/10.3139/146.111786

In-situ synchrotron investigation of the phases- and their morphology-development in Mg–Nd–Zn alloys: Paper presented at the Symposium “Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons” of the MSE 2018, 26–28 September 2018, Darmstadt, Germany. / Tolnai, Domonkos; Subroto, Tungky; Gavras, Serge et al.
In: International Journal of Materials Research , Vol. 111, No. 1, 01.2020, p. 4-10.

Research output: Contribution to journal › Article › peer-review

Tolnai, D, Subroto, T, Gavras, S, Buzolin, RH & Hort, N 2020, 'In-situ synchrotron investigation of the phases- and their morphology-development in Mg–Nd–Zn alloys: Paper presented at the Symposium “Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons” of the MSE 2018, 26–28 September 2018, Darmstadt, Germany', International Journal of Materials Research , vol. 111, no. 1, pp. 4-10. https://doi.org/10.3139/146.111786

Tolnai D, Subroto T, Gavras S, Buzolin RH, Hort N. In-situ synchrotron investigation of the phases- and their morphology-development in Mg–Nd–Zn alloys: Paper presented at the Symposium “Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons” of the MSE 2018, 26–28 September 2018, Darmstadt, Germany. International Journal of Materials Research . 2020 Jan;111(1):4-10. doi: https://doi.org/10.3139/146.111786

Tolnai, Domonkos ; Subroto, Tungky ; Gavras, Serge et al. / In-situ synchrotron investigation of the phases- and their morphology-development in Mg–Nd–Zn alloys : Paper presented at the Symposium “Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons” of the MSE 2018, 26–28 September 2018, Darmstadt, Germany. In: International Journal of Materials Research . 2020 ; Vol. 111, No. 1. pp. 4-10.

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abstract = "The addition of Zn to the Mg–Nd system improves the yield strength and creep resistance, however its influence on the intermetallic phases in the ternary system is not yet fully understood. Understanding the sequence of phase-formation and phase-evolution during solidification and processing is essential to microstructure design. The solidification was investigated with in-situ synchrotron radiation-diffraction and tomography during cooling from the molten state to 200°C to investigate the phase-formation and transformation characteristics. The solidification starts with α-Mg followed by two distinct intermetallic phases T2 and T3. The results suggest that Zn stabilizes the Mg3Nd phase and accelerates precipitate formation. The dendritic morphology changes during solidification towards coarser shapes, thus impedes feeding and promotes hot tearing.",

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AU - Gavras, Serge

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AB - The addition of Zn to the Mg–Nd system improves the yield strength and creep resistance, however its influence on the intermetallic phases in the ternary system is not yet fully understood. Understanding the sequence of phase-formation and phase-evolution during solidification and processing is essential to microstructure design. The solidification was investigated with in-situ synchrotron radiation-diffraction and tomography during cooling from the molten state to 200°C to investigate the phase-formation and transformation characteristics. The solidification starts with α-Mg followed by two distinct intermetallic phases T2 and T3. The results suggest that Zn stabilizes the Mg3Nd phase and accelerates precipitate formation. The dendritic morphology changes during solidification towards coarser shapes, thus impedes feeding and promotes hot tearing.

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KW - MgNdZn alloys

KW - Solidification

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KW - Synchrotron tomography

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In-situ synchrotron investigation of the phases- and their morphology-development in Mg–Nd–Zn alloys: Paper presented at the Symposium “Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons” of the MSE 2018, 26–28 September 2018, Darmstadt, Germany

Abstract

Keywords

ASJC Scopus subject areas

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