Mechanical Behavior of AZ91D-3Ca Magnesium Alloy Prepared by Pulsed Magnetic Field during Semi-solid Compression

Zhou Quan; Tu Xurong; Chen Leping

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Mechanical Behavior of AZ91D-3Ca Magnesium Alloy Prepared by Pulsed Magnetic Field during Semi-solid Compression
Vol. 30, Issue 2, Pages: 131-133(2010)
Published： 2010 ，
DOI：

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[1]周全,涂序荣,陈乐平.脉冲磁场下制备的AZ91D-3Ca合金的半固态压缩力学行为[J].特种铸造及有色合金,2010,30(02):131-133+93.

Zhou Quan, Tu Xurong, Chen Leping. Mechanical Behavior of AZ91D-3Ca Magnesium Alloy Prepared by Pulsed Magnetic Field during Semi-solid Compression. [J]. Special Casting & Nonferrous Alloys 30(2):131-133(2010)
[1]周全,涂序荣,陈乐平.脉冲磁场下制备的AZ91D-3Ca合金的半固态压缩力学行为[J].特种铸造及有色合金,2010,30(02):131-133+93. DOI：

Zhou Quan, Tu Xurong, Chen Leping. Mechanical Behavior of AZ91D-3Ca Magnesium Alloy Prepared by Pulsed Magnetic Field during Semi-solid Compression. [J]. Special Casting & Nonferrous Alloys 30(2):131-133(2010) DOI：

摘要

利用Gleeble-1500热模拟机对脉冲磁场下制备的AZ91D-3Ca镁合金的半固态压缩力学行为进行了研究

考察了变形温度和变形速率对半固态压缩流变应力的影响。结果表明

与常规铸造的镁合金试样相比

脉冲磁场下制备的镁合金试样在400℃的高温压缩时并无优势

而在510℃的半固态压缩时具有较低的变形抗力;当其他条件相同时

随着变形温度的升高或变形速率的降低

合金的变形抗力逐渐减小;当应变速率为0.005～0.500s-1和变形温度为510～520℃时

合金的变形抗力在0.38～1.60MPa范围内。

Abstract

Mechanical behavior of AZ91D-3Ca magnesium alloy prepared by pulsed magnetic field during semi-solid compression was investigated with help of the Gleeble-1500 hot simulator to understand effects of deformation temperature and strain rate on semi-solid compressive stress. The results reveal that

compared with that prepared by conventional casting

compressive behavior of magnesium alloy prepared by pulsed magnetic field is similar during compressive deformation at 400℃

however

lower deformation resistance can be observed at semi-solid temperature （510℃）. When other conditions keep the same

with the increase of deformation temperature or the decrease of strain rate

deformation resistance of the alloy is decreased. Deformation resistance makes in range of 0.38

.6 MPa with 0.005

.5 s-1 and 510

20 ℃ deformation temperature.