Metal Flow and Microstructure Evolution During Continuous Rheo-extrusion of AZ61 Magnesium Alloy

Guan Renguo Xing Zhenhuan Wang Chao Li Jiangwei Ma Tingwei Xu Yong

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Metal Flow and Microstructure Evolution During Continuous Rheo-extrusion of AZ61 Magnesium Alloy
- role： First author 第一作者
- Affiliation：
  Materials & Metallurgical College, Northeastern University,Shenyang,China,110004
Guan Renguo Xing Zhenhuan Wang Chao Li Jiangwei Ma Tingwei Xu Yong
1 ,
- Affiliation：
  Materials & Metallurgical College, Northeastern University,Shenyang,China,110004
邢振环
1 ,
- Affiliation：
  Materials & Metallurgical College, Northeastern University,Shenyang,China,110004
王超
1 ,
- Affiliation：
  Materials & Metallurgical College, Northeastern University,Shenyang,China,110004
李江委
1 ,
- Affiliation：
  Materials & Metallurgical College, Northeastern University,Shenyang,China,110004
马廷威
1 ,
- Affiliation：
  Materials & Metallurgical College, Northeastern University,Shenyang,China,110004
徐勇
1
Issue S1, Pages: 256-258(2007)
Published： 2007 ，
DOI：

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[1]管仁国,邢振环,王超,李江委,马廷威,徐勇.AZ61镁合金连续流变挤压成形过程的金属流动与组织演化[J].特种铸造及有色合金,2007(S1):256-258.

Guan Renguo Xing Zhenhuan Wang Chao Li Jiangwei Ma Tingwei Xu Yong. Metal Flow and Microstructure Evolution During Continuous Rheo-extrusion of AZ61 Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys (S1):256-258(2007)
[1]管仁国,邢振环,王超,李江委,马廷威,徐勇.AZ61镁合金连续流变挤压成形过程的金属流动与组织演化[J].特种铸造及有色合金,2007(S1):256-258. DOI：

Guan Renguo Xing Zhenhuan Wang Chao Li Jiangwei Ma Tingwei Xu Yong. Metal Flow and Microstructure Evolution During Continuous Rheo-extrusion of AZ61 Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys (S1):256-258(2007) DOI：

Metal Flow and Microstructure Evolution During Continuous Rheo-extrusion of AZ61 Magnesium Alloy

Guan Renguo Xing Zhenhuan Wang Chao Li Jiangwei Ma Tingwei Xu Yong ; 邢振环 ; 王超 ; 李江委 ; 马廷威 ; 徐勇 ;

Abstract

By using self-designed continuous rheo-extrusion process, AZ61 alloy wire with the diameter of Φ10 mm was fabricated. Under the actions of kneading and shearing by the roll, microstructures of the alloy gradually evolve from dendrites at the pouring entrance to the fine equiaxed and spherical grains at the extrusion zone. During the extrusion forming process, solid structures in the central part have a small deformation, but that in the outside have a large deformation, and ultra-fine grain microstructures come into being in the arc flow part. Under proper process conditions, the microstructures on the transaction of the product are good and show the character of two-phase plastic flow. Casting temperature can affect solid fraction and further induces a great influence on the forming process; proper casting temperature is about 650 ℃.

transl

Keywords

AZ61 Magnesium Alloy; Wire; Continuous Rheo-extrusion; Microstructure; Metal Flow

transl

摘要

采用自行设计的连续流变挤压成形技术成功制备出Φ10mm的AZ61镁合金线材。在轧辊的挫动剪切作用下

合金从浇注口到挤压区

逐渐由发达的枝晶状组织演化为细小的等轴晶和球形晶。在挤压成形时

中心部位固相变形小

边部大

在圆弧流动区产生了优良的超细晶组织。在合理的技术条件下

制备的AZ61合金线材断面组织优良

呈现两相塑性流动的特征。浇注温度影响AZ61合金的固相率

进而对成形过程产生重要影响

合理的浇注温度为650℃左右。

Abstract

By using self-designed continuous rheo-extrusion process

AZ61 alloy wire with the diameter of Φ10 mm was fabricated. Under the actions of kneading and shearing by the roll

microstructures of the alloy gradually evolve from dendrites at the pouring entrance to the fine equiaxed and spherical grains at the extrusion zone. During the extrusion forming process

solid structures in the central part have a small deformation

but that in the outside have a large deformation

and ultra-fine grain microstructures come into being in the arc flow part. Under proper process conditions

the microstructures on the transaction of the product are good and show the character of two-phase plastic flow. Casting temperature can affect solid fraction and further induces a great influence on the forming process; proper casting temperature is about 650 ℃.

关键词

AZ61镁合金线材连续流变挤压组织金属流动

Keywords

AZ61 Magnesium AlloyWireContinuous Rheo-extrusionMicrostructureMetal Flow

references

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Microstructural Evolution Behaviors of AZ61 Magnesium Alloy during Continuous Rheo-extrusion

Microstructure and Mechanical Properties of Heat-resistant Al-Ce Alloy

Effects of La and Ce on the Microstructure and Properties of Al-3Si-0.5Cu-0.7Fe Alloy

Effects of Solution Treatment on Microstructure and Wear Resistance of ADC12 Alloy Modified by Yb

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Related Institution

Materials and Metallurgical College, Northeastern University

Key State Laboratory of Rolling & Continuous Rolling Automatic,Northeastern University

Hubei Provincial Key Laboratory of Chemical Equipment Intensification and Intrinsic Safety， School of Mechanical and Electrical Engineering， Wuhan Institute of Technology

State Key Laboratory of Materials Processing and Die & Mould Technology， School of Materials Science and Engineering， Huazhong University of Science and Technology

School of Materials Science and Engineering,University of Science andTechnology Beijing

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