Study on distribution of long-period stacking ordered phase in Mg-Gd-Y-Zn-Zr alloy using friction stir processing

Q. Yang; B. L. Xiao; D. Wang; M. Y. Zheng; Z. Y. Ma

doi:10.1016/j.msea.2014.12.091

Study on distribution of long-period stacking ordered phase in Mg-Gd-Y-Zn-Zr alloy using friction stir processing

Q. Yang
, B. L. Xiao^*
, D. Wang
, M. Y. Zheng
, Z. Y. Ma

^*Corresponding author for this work

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

37 Scopus citations

Abstract

Friction stir processing (FSP) was applied to Mg-Gd-Y-Zn-Zr casting at various process parameters to study the influence of heat and deformation conditions on the distribution of long-period stacking ordered (LPSO) phase. FSP resulted in grain refinement, fundamental elimination of β-Mg₃RE eutectics and formation of LPSO phase. Various distributions of LPSO phase, including no LPSO phase, LPSO phase both at the grain boundaries and within the grains and LPSO phase only within the grains could be obtained after FSP at the investigated process parameters. Based on the microstructure analyses and formation mechanism of LPSO phase, this varied distribution is believed to be caused by the combined influence of temperature, plastic strain and cooling rate. Detailed influence of these factors on the distribution of LPSO phase was discussed.

Original language	English
Pages (from-to)	275-285
Number of pages	11
Journal	Materials Science and Engineering: A
Volume	626
DOIs	https://doi.org/10.1016/j.msea.2014.12.091
State	Published - 5 Feb 2015
Externally published	Yes

Keywords

Friction stir processing
Long-period stacking ordered structure
Magnesium alloys
Microstructure

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10.1016/j.msea.2014.12.091

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title = "Study on distribution of long-period stacking ordered phase in Mg-Gd-Y-Zn-Zr alloy using friction stir processing",

abstract = "Friction stir processing (FSP) was applied to Mg-Gd-Y-Zn-Zr casting at various process parameters to study the influence of heat and deformation conditions on the distribution of long-period stacking ordered (LPSO) phase. FSP resulted in grain refinement, fundamental elimination of β-Mg3RE eutectics and formation of LPSO phase. Various distributions of LPSO phase, including no LPSO phase, LPSO phase both at the grain boundaries and within the grains and LPSO phase only within the grains could be obtained after FSP at the investigated process parameters. Based on the microstructure analyses and formation mechanism of LPSO phase, this varied distribution is believed to be caused by the combined influence of temperature, plastic strain and cooling rate. Detailed influence of these factors on the distribution of LPSO phase was discussed.",

keywords = "Friction stir processing, Long-period stacking ordered structure, Magnesium alloys, Microstructure",

author = "Q. Yang and Xiao, \{B. L.\} and D. Wang and Zheng, \{M. Y.\} and Ma, \{Z. Y.\}",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2015",

month = feb,

day = "5",

doi = "10.1016/j.msea.2014.12.091",

language = "英语",

volume = "626",

pages = "275--285",

journal = "Materials Science and Engineering: A",

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TY - JOUR

T1 - Study on distribution of long-period stacking ordered phase in Mg-Gd-Y-Zn-Zr alloy using friction stir processing

AU - Yang, Q.

AU - Xiao, B. L.

AU - Wang, D.

AU - Zheng, M. Y.

AU - Ma, Z. Y.

PY - 2015/2/5

Y1 - 2015/2/5

N2 - Friction stir processing (FSP) was applied to Mg-Gd-Y-Zn-Zr casting at various process parameters to study the influence of heat and deformation conditions on the distribution of long-period stacking ordered (LPSO) phase. FSP resulted in grain refinement, fundamental elimination of β-Mg3RE eutectics and formation of LPSO phase. Various distributions of LPSO phase, including no LPSO phase, LPSO phase both at the grain boundaries and within the grains and LPSO phase only within the grains could be obtained after FSP at the investigated process parameters. Based on the microstructure analyses and formation mechanism of LPSO phase, this varied distribution is believed to be caused by the combined influence of temperature, plastic strain and cooling rate. Detailed influence of these factors on the distribution of LPSO phase was discussed.

AB - Friction stir processing (FSP) was applied to Mg-Gd-Y-Zn-Zr casting at various process parameters to study the influence of heat and deformation conditions on the distribution of long-period stacking ordered (LPSO) phase. FSP resulted in grain refinement, fundamental elimination of β-Mg3RE eutectics and formation of LPSO phase. Various distributions of LPSO phase, including no LPSO phase, LPSO phase both at the grain boundaries and within the grains and LPSO phase only within the grains could be obtained after FSP at the investigated process parameters. Based on the microstructure analyses and formation mechanism of LPSO phase, this varied distribution is believed to be caused by the combined influence of temperature, plastic strain and cooling rate. Detailed influence of these factors on the distribution of LPSO phase was discussed.

KW - Friction stir processing

KW - Long-period stacking ordered structure

KW - Magnesium alloys

KW - Microstructure

UR - https://www.scopus.com/pages/publications/84920927206

U2 - 10.1016/j.msea.2014.12.091

DO - 10.1016/j.msea.2014.12.091

M3 - 文章

AN - SCOPUS:84920927206

SN - 0921-5093

VL - 626

SP - 275

EP - 285

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Study on distribution of long-period stacking ordered phase in Mg-Gd-Y-Zn-Zr alloy using friction stir processing

Abstract

Keywords

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