In situ synchrotron radiation diffraction investigation of the compression behaviour at 350 °C of ZK40 alloys with addition of CaO and Y

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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In situ synchrotron radiation diffraction investigation of the compression behaviour at 350 °C of ZK40 alloys with addition of CaO and Y. / Buzolin, R. H.; Mendis, C. L.; Tolnai, D. et al.
in: Materials Science and Engineering A, Jahrgang 664, 10.05.2016, S. 2-9.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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Buzolin RH, Mendis CL, Tolnai D, Stark A, Schell N, Pinto H et al. In situ synchrotron radiation diffraction investigation of the compression behaviour at 350 °C of ZK40 alloys with addition of CaO and Y. Materials Science and Engineering A. 2016 Mai 10;664:2-9. doi: 10.1016/j.msea.2016.03.121

Bibtex

@article{5776ea0cfc084dbbb92b34b14385d64a,
title = "In situ synchrotron radiation diffraction investigation of the compression behaviour at 350 °C of ZK40 alloys with addition of CaO and Y",
abstract = "The evolution of the microstructure during compression is investigated with in situ synchrotron radiation diffraction in as-cast ZK40, ZK40-2CaO and ZK40-1Y Mg alloys. The specimens were compressed at 350 °C with a strain rate of 10-3 s-1 until 30% deformation. The Y containing alloy showed the highest 0.2% proof strength in compression of 35 MPa at 350 °C which is double that of the ZK40 alloy, while the CaO added alloy shows a moderate increment at 23 MPa. The Y containing alloy shows some work hardening, while the CaO modified and the ZK40 alloys do not show work hardening after yield. Synchrotron radiation diffraction timelines show that continuous and discontinuous dynamic recrystallization occurs during deformation of the ZK40 alloy while a small amount of dynamic recrystallization was observed in the ZK40-1Y alloy. However, dynamic recrystallization was not present in the ZK40-2CaO alloy. SEM-EBSD analysis conducted on the deformed samples shows a significantly high volume fraction of twins in the Y and CaO containing alloys which was absent in the ZK40 alloy. The modified deformation behaviours observed in the CaO and Y containing alloys were attributed to the presence of intermetallic particles found at the grain boundaries and to the role of Ca and Y in stabilising twinning.",
keywords = "Calcium oxide, Elevated temperature deformation, In situ synchrotron radiation diffraction, Magnesium alloy, Yttrium, ZK40, Engineering",
author = "Buzolin, {R. H.} and Mendis, {C. L.} and D. Tolnai and A. Stark and N. Schell and H. Pinto and Kainer, {K. U.} and N. Hort",
year = "2016",
month = may,
day = "10",
doi = "10.1016/j.msea.2016.03.121",
language = "English",
volume = "664",
pages = "2--9",
journal = "Materials Science and Engineering A",
issn = "0921-5093",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - In situ synchrotron radiation diffraction investigation of the compression behaviour at 350 °C of ZK40 alloys with addition of CaO and Y

AU - Buzolin, R. H.

AU - Mendis, C. L.

AU - Tolnai, D.

AU - Stark, A.

AU - Schell, N.

AU - Pinto, H.

AU - Kainer, K. U.

AU - Hort, N.

PY - 2016/5/10

Y1 - 2016/5/10

N2 - The evolution of the microstructure during compression is investigated with in situ synchrotron radiation diffraction in as-cast ZK40, ZK40-2CaO and ZK40-1Y Mg alloys. The specimens were compressed at 350 °C with a strain rate of 10-3 s-1 until 30% deformation. The Y containing alloy showed the highest 0.2% proof strength in compression of 35 MPa at 350 °C which is double that of the ZK40 alloy, while the CaO added alloy shows a moderate increment at 23 MPa. The Y containing alloy shows some work hardening, while the CaO modified and the ZK40 alloys do not show work hardening after yield. Synchrotron radiation diffraction timelines show that continuous and discontinuous dynamic recrystallization occurs during deformation of the ZK40 alloy while a small amount of dynamic recrystallization was observed in the ZK40-1Y alloy. However, dynamic recrystallization was not present in the ZK40-2CaO alloy. SEM-EBSD analysis conducted on the deformed samples shows a significantly high volume fraction of twins in the Y and CaO containing alloys which was absent in the ZK40 alloy. The modified deformation behaviours observed in the CaO and Y containing alloys were attributed to the presence of intermetallic particles found at the grain boundaries and to the role of Ca and Y in stabilising twinning.

AB - The evolution of the microstructure during compression is investigated with in situ synchrotron radiation diffraction in as-cast ZK40, ZK40-2CaO and ZK40-1Y Mg alloys. The specimens were compressed at 350 °C with a strain rate of 10-3 s-1 until 30% deformation. The Y containing alloy showed the highest 0.2% proof strength in compression of 35 MPa at 350 °C which is double that of the ZK40 alloy, while the CaO added alloy shows a moderate increment at 23 MPa. The Y containing alloy shows some work hardening, while the CaO modified and the ZK40 alloys do not show work hardening after yield. Synchrotron radiation diffraction timelines show that continuous and discontinuous dynamic recrystallization occurs during deformation of the ZK40 alloy while a small amount of dynamic recrystallization was observed in the ZK40-1Y alloy. However, dynamic recrystallization was not present in the ZK40-2CaO alloy. SEM-EBSD analysis conducted on the deformed samples shows a significantly high volume fraction of twins in the Y and CaO containing alloys which was absent in the ZK40 alloy. The modified deformation behaviours observed in the CaO and Y containing alloys were attributed to the presence of intermetallic particles found at the grain boundaries and to the role of Ca and Y in stabilising twinning.

KW - Calcium oxide

KW - Elevated temperature deformation

KW - In situ synchrotron radiation diffraction

KW - Magnesium alloy

KW - Yttrium

KW - ZK40

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84962007644&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2016.03.121

DO - 10.1016/j.msea.2016.03.121

M3 - Journal articles

AN - SCOPUS:84962007644

VL - 664

SP - 2

EP - 9

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

SN - 0921-5093

ER -

DOI

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