| 引用本文: | 王欣,杨闯,胡连喜.铸态AZ31镁合金板材等温轧制工艺及组织性能研究[J].材料科学与工艺,2011,19(2):34-37.DOI:10.11951/j.issn.1005-0299.20110208. |
| WANG Xin,YANG Chuang,HU Lian-xi.Mechanical properties and isothermal rolling process of AZ31 as-cast Mg alloy plate[J].Materials Science and Technology,2011,19(2):34-37.DOI:10.11951/j.issn.1005-0299.20110208. |
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| 摘要: |
| 为研究铸态AZ31镁合金轧制工艺及轧制后组织性能,通过试验得到不同道次和变形量对铸态AZ31镁合金板材显微组织和力学性能的影响规律,并采用扫描电子显微镜研究了轧制后板材组织.结果表明,铸态AZ31镁合金板材经等温4道次、等变形量轧制后,板材厚度由20 mm变化到4.8 mm,抗拉强度和屈服强度分别达到275 MPa和187 MPa,延伸率为32%,板材性能方向性小.研究表明,AZ31镁合金板材力学性能既受到平均晶粒尺寸影响,也受到晶粒取向制约.铸态AZ31镁合金板材采用等温4道次、等变形量轧制工艺,能够获得性能优异的轧制板材. |
| 关键词: AZ31镁合金 轧制 力学性能 |
| DOI：10.11951/j.issn.1005-0299.20110208 |
| 分类号:TG335.5 |
| 基金项目: |
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| Mechanical properties and isothermal rolling process of AZ31 as-cast Mg alloy plate |
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WANG Xin1, YANG Chuang2, HU Lian-xi1
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1.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;2.Materials and Chemistry Technology,Heilongjiang Institute of Technology,Harbin150001,China
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| Abstract: |
| To understand the microstructure and properties of AZ31 as-cast Mg alloy plate,rolling tests were carried out in this paper.The influences of rolling pass and deformation extent on microstructure and mechanical properties were studied by experiments.After the plate rolled by four passes at the same temperature and equal deformation extent,the thickness changes from 20 mm to 4.8 mm.The tensile strength,yield strength and elongation are 275 MPa,187 MPa and 32%,respectively.The properties of plate are uniform at all direction.It is revealed that the mechanical properties are related to the average grain siz and grain orientation. |
| Key words: AZ31 Mg alloy rolling mechanical properties |
