Effect of Y addition on microstructure and mechanical properties of friction stir welded ZK60 alloy

G. M. Xie; Z. Y. Ma; L. Geng

Effect of Y addition on microstructure and mechanical properties of friction stir welded ZK60 alloy

G. M. Xie^*
, Z. Y. Ma
, L. Geng

^*Corresponding author for this work

Harbin Institute of Technology
CAS - Institute of Metal Research

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

30 Scopus citations

Abstract

6 mm thick ZK60 and ZK60-Y alloy plates were successfully friction stir welded (FSW) at a tool rotation rate of 1200 r/min and a traverse speed of 100 mm/min. FSW resulted in the dissolution of MgZn₂ particles in the ZK60 and the breakup and dispersion of W-phase (Mg₃Zn₃Y₂) particles in the ZK60-Y alloy, thereby leading to a decrease in the hardness of the nugget zone (NZ) for the ZK60 alloy and an increase in the hardness of the NZ for the ZK60-Y alloy, respectively. While two FSW joints exhibited similar joint efficiency (87%-89% of ultimate tensile strengths of the parent materials), the yield strength of the FSW ZK60-Y joint was substantially higher than that of the FSW ZK60 joint. The fracture occurred in the NZ and the heat affected zone for the ZK60 and ZK60-Y joints, respectively, which were consistent with the lowest hardness distribution of the welded joints. Printed by

Original language	English
Pages (from-to)	351-355
Number of pages	5
Journal	Journal of Materials Science and Technology
Volume	25
Issue number	3
State	Published - May 2009
Externally published	Yes

Keywords

Friction stir welding
Magnesium
Mechanical properties
Microstructure

Cite this

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title = "Effect of Y addition on microstructure and mechanical properties of friction stir welded ZK60 alloy",

abstract = "6 mm thick ZK60 and ZK60-Y alloy plates were successfully friction stir welded (FSW) at a tool rotation rate of 1200 r/min and a traverse speed of 100 mm/min. FSW resulted in the dissolution of MgZn2 particles in the ZK60 and the breakup and dispersion of W-phase (Mg3Zn3Y2) particles in the ZK60-Y alloy, thereby leading to a decrease in the hardness of the nugget zone (NZ) for the ZK60 alloy and an increase in the hardness of the NZ for the ZK60-Y alloy, respectively. While two FSW joints exhibited similar joint efficiency (87\%-89\% of ultimate tensile strengths of the parent materials), the yield strength of the FSW ZK60-Y joint was substantially higher than that of the FSW ZK60 joint. The fracture occurred in the NZ and the heat affected zone for the ZK60 and ZK60-Y joints, respectively, which were consistent with the lowest hardness distribution of the welded joints. Printed by",

keywords = "Friction stir welding, Magnesium, Mechanical properties, Microstructure",

author = "Xie, \{G. M.\} and Ma, \{Z. Y.\} and L. Geng",

year = "2009",

month = may,

language = "英语",

volume = "25",

pages = "351--355",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

number = "3",

}

TY - JOUR

T1 - Effect of Y addition on microstructure and mechanical properties of friction stir welded ZK60 alloy

AU - Xie, G. M.

AU - Ma, Z. Y.

AU - Geng, L.

PY - 2009/5

Y1 - 2009/5

N2 - 6 mm thick ZK60 and ZK60-Y alloy plates were successfully friction stir welded (FSW) at a tool rotation rate of 1200 r/min and a traverse speed of 100 mm/min. FSW resulted in the dissolution of MgZn2 particles in the ZK60 and the breakup and dispersion of W-phase (Mg3Zn3Y2) particles in the ZK60-Y alloy, thereby leading to a decrease in the hardness of the nugget zone (NZ) for the ZK60 alloy and an increase in the hardness of the NZ for the ZK60-Y alloy, respectively. While two FSW joints exhibited similar joint efficiency (87%-89% of ultimate tensile strengths of the parent materials), the yield strength of the FSW ZK60-Y joint was substantially higher than that of the FSW ZK60 joint. The fracture occurred in the NZ and the heat affected zone for the ZK60 and ZK60-Y joints, respectively, which were consistent with the lowest hardness distribution of the welded joints. Printed by

AB - 6 mm thick ZK60 and ZK60-Y alloy plates were successfully friction stir welded (FSW) at a tool rotation rate of 1200 r/min and a traverse speed of 100 mm/min. FSW resulted in the dissolution of MgZn2 particles in the ZK60 and the breakup and dispersion of W-phase (Mg3Zn3Y2) particles in the ZK60-Y alloy, thereby leading to a decrease in the hardness of the nugget zone (NZ) for the ZK60 alloy and an increase in the hardness of the NZ for the ZK60-Y alloy, respectively. While two FSW joints exhibited similar joint efficiency (87%-89% of ultimate tensile strengths of the parent materials), the yield strength of the FSW ZK60-Y joint was substantially higher than that of the FSW ZK60 joint. The fracture occurred in the NZ and the heat affected zone for the ZK60 and ZK60-Y joints, respectively, which were consistent with the lowest hardness distribution of the welded joints. Printed by

KW - Friction stir welding

KW - Magnesium

KW - Mechanical properties

KW - Microstructure

UR - https://www.scopus.com/pages/publications/67549138280

M3 - 文章

AN - SCOPUS:67549138280

SN - 1005-0302

VL - 25

SP - 351

EP - 355

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 3

ER -

Effect of Y addition on microstructure and mechanical properties of friction stir welded ZK60 alloy

Abstract

Keywords

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