Grain Growth Kinetics of Rolled ZK61 Magnesium Alloy Sheet

Ertuan Zhao; Lixin Zhang; Qing Yu; Wenzhen Chen

doi:10.11896/j.issn.1005-023X.2017.04.014

Grain Growth Kinetics of Rolled ZK61 Magnesium Alloy Sheet

Ertuan Zhao
, Lixin Zhang
, Qing Yu
, Wenzhen Chen^*

^*Corresponding author for this work

Shandong University of Technology
School of Materials Science and Engineering, Harbin Institute of Technology Weihai
Naval Aeronautical Engineering Academy Yantai

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

3 Scopus citations

Abstract

The annealing experiment of the hot-rolled ZK61 magnesium alloy plates was carried out under different annealing temperature and holding time. The microstructure was observed by optical microscope (OM), and the mathematical model for the relationship among the grain size, annealing temperature and holding time was established to investigate the grain growth behavior of hot-rolled ZK61 magnesium alloy. The results indicate that the increasing annealing temperature and the extending holding time can lead to the coarsened grain. In addition, annealing temperature apparently has a greater effect on the grain growth than holding time. The relationship between the grain size and holding time of ZK61 magnesium alloy in the temperature range of 250-450℃ can be well interpreted by the kinetic equation, Dⁿ-D₀ⁿ=kt, where k=k₀exp[-Q_g/(RT)]. And the calculated grain growth exponent (n) and the activation energy (Q_g) are about 3.5 and 45 kJ/mol, respectively.

Original language	English
Pages (from-to)	60-64
Number of pages	5
Journal	Cailiao Daobao/Materials Review
Volume	31
Issue number	2
DOIs	https://doi.org/10.11896/j.issn.1005-023X.2017.04.014
State	Published - 25 Feb 2017
Externally published	Yes

Keywords

Annealing
Beck equation
Grain growth
ZK61 magnesium alloy

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10.11896/j.issn.1005-023X.2017.04.014

Cite this

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title = "Grain Growth Kinetics of Rolled ZK61 Magnesium Alloy Sheet",

abstract = "The annealing experiment of the hot-rolled ZK61 magnesium alloy plates was carried out under different annealing temperature and holding time. The microstructure was observed by optical microscope (OM), and the mathematical model for the relationship among the grain size, annealing temperature and holding time was established to investigate the grain growth behavior of hot-rolled ZK61 magnesium alloy. The results indicate that the increasing annealing temperature and the extending holding time can lead to the coarsened grain. In addition, annealing temperature apparently has a greater effect on the grain growth than holding time. The relationship between the grain size and holding time of ZK61 magnesium alloy in the temperature range of 250-450℃ can be well interpreted by the kinetic equation, Dn-D0n=kt, where k=k0exp[-Qg/(RT)]. And the calculated grain growth exponent (n) and the activation energy (Qg) are about 3.5 and 45 kJ/mol, respectively.",

keywords = "Annealing, Beck equation, Grain growth, ZK61 magnesium alloy",

author = "Ertuan Zhao and Lixin Zhang and Qing Yu and Wenzhen Chen",

year = "2017",

month = feb,

day = "25",

doi = "10.11896/j.issn.1005-023X.2017.04.014",

language = "英语",

volume = "31",

pages = "60--64",

journal = "Cailiao Daobao/Materials Review",

issn = "1005-023X",

publisher = "Cailiao Daobaoshe/ Materials Review",

number = "2",

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TY - JOUR

T1 - Grain Growth Kinetics of Rolled ZK61 Magnesium Alloy Sheet

AU - Zhao, Ertuan

AU - Zhang, Lixin

AU - Yu, Qing

AU - Chen, Wenzhen

PY - 2017/2/25

Y1 - 2017/2/25

N2 - The annealing experiment of the hot-rolled ZK61 magnesium alloy plates was carried out under different annealing temperature and holding time. The microstructure was observed by optical microscope (OM), and the mathematical model for the relationship among the grain size, annealing temperature and holding time was established to investigate the grain growth behavior of hot-rolled ZK61 magnesium alloy. The results indicate that the increasing annealing temperature and the extending holding time can lead to the coarsened grain. In addition, annealing temperature apparently has a greater effect on the grain growth than holding time. The relationship between the grain size and holding time of ZK61 magnesium alloy in the temperature range of 250-450℃ can be well interpreted by the kinetic equation, Dn-D0n=kt, where k=k0exp[-Qg/(RT)]. And the calculated grain growth exponent (n) and the activation energy (Qg) are about 3.5 and 45 kJ/mol, respectively.

AB - The annealing experiment of the hot-rolled ZK61 magnesium alloy plates was carried out under different annealing temperature and holding time. The microstructure was observed by optical microscope (OM), and the mathematical model for the relationship among the grain size, annealing temperature and holding time was established to investigate the grain growth behavior of hot-rolled ZK61 magnesium alloy. The results indicate that the increasing annealing temperature and the extending holding time can lead to the coarsened grain. In addition, annealing temperature apparently has a greater effect on the grain growth than holding time. The relationship between the grain size and holding time of ZK61 magnesium alloy in the temperature range of 250-450℃ can be well interpreted by the kinetic equation, Dn-D0n=kt, where k=k0exp[-Qg/(RT)]. And the calculated grain growth exponent (n) and the activation energy (Qg) are about 3.5 and 45 kJ/mol, respectively.

KW - Annealing

KW - Beck equation

KW - Grain growth

KW - ZK61 magnesium alloy

UR - https://www.scopus.com/pages/publications/85042726713

U2 - 10.11896/j.issn.1005-023X.2017.04.014

DO - 10.11896/j.issn.1005-023X.2017.04.014

M3 - 文章

AN - SCOPUS:85042726713

SN - 1005-023X

VL - 31

SP - 60

EP - 64

JO - Cailiao Daobao/Materials Review

JF - Cailiao Daobao/Materials Review

IS - 2

ER -

Grain Growth Kinetics of Rolled ZK61 Magnesium Alloy Sheet

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Keywords

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