Effects of Hot Isostatic Pressing on the Microstructure and Properties of Mg-Gd-Y-Zn Alloys

Janet M. Meier; Josh Caris; Alan A. Luo

doi:10.1007/978-3-030-65528-0_20

Effects of Hot Isostatic Pressing on the Microstructure and Properties of Mg-Gd-Y-Zn Alloys

Janet M. Meier, Josh Caris, Alan A. Luo

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Hot isostatic pressing (HIP) treatment after solution treatment has been investigated on its effects on the mechanical and corrosion properties of Mg-Gd-Y-Zn alloys with high long-period stacking order (LPSO) 14H phase fractions. Plate and cylinder samples of three different compositions were cut from permanent mold castings. The alloy samples were solution treated for 25 h at 500 °C and processed with the following HIP conditions: 485–490 °C, 100–200 MPa, for 2 h. The mechanical properties generally increased with HIP. Under accelerated corrosion conditions (submersion in 3% KCl at a temperature of 90 °C), the corrosion rate was observed to increase after HIP. HIP was found not to change the density of the samples, indicating micro-porosity was not an issue. The change in corrosion rate and mechanical properties were a result of microstructural changes due to the HIP thermal cycle. CALPHAD (CALculation of PHAse Diagrams) modeling of the three compositions as well as scanning electron microscopy (SEM) microstructural observations of the alloys are provided.

Original language	English
Title of host publication	Magnesium Technology 2021
Editors	Victoria M. Miller, Petra Maier, J. Brian Jordon, Neale R. Neelameggham
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	131-137
Number of pages	7
ISBN (Print)	9783030655273
DOIs	https://doi.org/10.1007/978-3-030-65528-0_20
State	Published - 2021
Externally published	Yes
Event	Magnesium Technology Symposium held at the TMS Annual Meeting and Exhibition, 2021 - Virtual, Online Duration: Mar 15 2021 → Mar 18 2021

Publication series

Name	Minerals, Metals and Materials Series
ISSN (Print)	2367-1181
ISSN (Electronic)	2367-1696

Conference

Conference	Magnesium Technology Symposium held at the TMS Annual Meeting and Exhibition, 2021
City	Virtual, Online
Period	03/15/21 → 03/18/21

Funding

Acknowledgements This work was funded by the Army Research Laboratory (ARL) and Terves LLC. The authors would like to acknowledge Dr. Vincent Hammond with ARL, Dr. William Meier of Oak Ridge National Laboratory, and the Light Metals and Manufacturing Laboratory members at The Ohio State University for their insightful discussions. This material is based upon work supported by the Army Contracting Command—Adelphi, MD under Contract No W911QX-18-P-0038. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of ARL.

Funders	Funder number
Terves LLC	W911QX-18-P-0038
Army Research Laboratory

Keywords

Alloy development
CALPHAD modeling
Hot isostatic pressing (HIP)
Long period stacking order (LPSO)
Magnesium alloys

Access to Document

10.1007/978-3-030-65528-0_20

Cite this

Meier, J. M., Caris, J., & Luo, A. A. (2021). Effects of Hot Isostatic Pressing on the Microstructure and Properties of Mg-Gd-Y-Zn Alloys. In V. M. Miller, P. Maier, J. B. Jordon, & N. R. Neelameggham (Eds.), Magnesium Technology 2021 (pp. 131-137). (Minerals, Metals and Materials Series). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-030-65528-0_20

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abstract = "Hot isostatic pressing (HIP) treatment after solution treatment has been investigated on its effects on the mechanical and corrosion properties of Mg-Gd-Y-Zn alloys with high long-period stacking order (LPSO) 14H phase fractions. Plate and cylinder samples of three different compositions were cut from permanent mold castings. The alloy samples were solution treated for 25 h at 500 °C and processed with the following HIP conditions: 485–490 °C, 100–200 MPa, for 2 h. The mechanical properties generally increased with HIP. Under accelerated corrosion conditions (submersion in 3% KCl at a temperature of 90 °C), the corrosion rate was observed to increase after HIP. HIP was found not to change the density of the samples, indicating micro-porosity was not an issue. The change in corrosion rate and mechanical properties were a result of microstructural changes due to the HIP thermal cycle. CALPHAD (CALculation of PHAse Diagrams) modeling of the three compositions as well as scanning electron microscopy (SEM) microstructural observations of the alloys are provided.",

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Meier, JM, Caris, J & Luo, AA 2021, Effects of Hot Isostatic Pressing on the Microstructure and Properties of Mg-Gd-Y-Zn Alloys. in VM Miller, P Maier, JB Jordon & NR Neelameggham (eds), Magnesium Technology 2021. Minerals, Metals and Materials Series, Springer Science and Business Media Deutschland GmbH, pp. 131-137, Magnesium Technology Symposium held at the TMS Annual Meeting and Exhibition, 2021, Virtual, Online, 03/15/21. https://doi.org/10.1007/978-3-030-65528-0_20

Effects of Hot Isostatic Pressing on the Microstructure and Properties of Mg-Gd-Y-Zn Alloys. / Meier, Janet M.; Caris, Josh; Luo, Alan A.
Magnesium Technology 2021. ed. / Victoria M. Miller; Petra Maier; J. Brian Jordon; Neale R. Neelameggham. Springer Science and Business Media Deutschland GmbH, 2021. p. 131-137 (Minerals, Metals and Materials Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - Hot isostatic pressing (HIP) treatment after solution treatment has been investigated on its effects on the mechanical and corrosion properties of Mg-Gd-Y-Zn alloys with high long-period stacking order (LPSO) 14H phase fractions. Plate and cylinder samples of three different compositions were cut from permanent mold castings. The alloy samples were solution treated for 25 h at 500 °C and processed with the following HIP conditions: 485–490 °C, 100–200 MPa, for 2 h. The mechanical properties generally increased with HIP. Under accelerated corrosion conditions (submersion in 3% KCl at a temperature of 90 °C), the corrosion rate was observed to increase after HIP. HIP was found not to change the density of the samples, indicating micro-porosity was not an issue. The change in corrosion rate and mechanical properties were a result of microstructural changes due to the HIP thermal cycle. CALPHAD (CALculation of PHAse Diagrams) modeling of the three compositions as well as scanning electron microscopy (SEM) microstructural observations of the alloys are provided.

AB - Hot isostatic pressing (HIP) treatment after solution treatment has been investigated on its effects on the mechanical and corrosion properties of Mg-Gd-Y-Zn alloys with high long-period stacking order (LPSO) 14H phase fractions. Plate and cylinder samples of three different compositions were cut from permanent mold castings. The alloy samples were solution treated for 25 h at 500 °C and processed with the following HIP conditions: 485–490 °C, 100–200 MPa, for 2 h. The mechanical properties generally increased with HIP. Under accelerated corrosion conditions (submersion in 3% KCl at a temperature of 90 °C), the corrosion rate was observed to increase after HIP. HIP was found not to change the density of the samples, indicating micro-porosity was not an issue. The change in corrosion rate and mechanical properties were a result of microstructural changes due to the HIP thermal cycle. CALPHAD (CALculation of PHAse Diagrams) modeling of the three compositions as well as scanning electron microscopy (SEM) microstructural observations of the alloys are provided.

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Effects of Hot Isostatic Pressing on the Microstructure and Properties of Mg-Gd-Y-Zn Alloys

Abstract

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Keywords

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