| AZ31B镁合金薄板的单向拉伸行为实验研究 |
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| 引用本文： | 杨东峰,赵长财,郝海滨.AZ31B镁合金薄板的单向拉伸行为实验研究[J].锻压技术,2012,37(4):140-144. |
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| 作者姓名： | 杨东峰 赵长财 郝海滨 |
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| 作者单位： | 1. 燕山大学车辆与能源学院,河北秦皇岛,066004
2. 燕山大学机械工程学院,河北秦皇岛,066004 |
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| 基金项目： | 国家自然科学基金资助项目(50775197) |
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| 摘 要： | 在Gleeble-3500热模拟试验机上对AZ31B镁合金薄板(0.6 mm)拉伸试样在100～350℃的温度范围和1×10-1～1×10-3s-1的应变速率范围内进行了的单向拉伸实验,根据实验结果对AZ31B镁合金薄板的力学性能进行了分析.结果表明:AZ31B镁合金薄板在较低变形温度100～150℃时,应变速率对流动应力的影响不大；相比之下应变速率对AZ31B镁合金的断裂伸长率却有一定的影响,提高应变速率会降低材料的伸长率；在较高变形温度(200℃以上)时,应变速率对流动应力的影响比较明显,表现出显著的应变速率敏感性.
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| 关 键 词： | 镁合金 单向拉伸 变形温度 应变速率 |
Experimental research on uniaxial tensile behavior of AZ31B magnesium alloy thin sheet |
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| YANG Dong-feng
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ZHAO Chang-cai
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HAO Hai-bin.Experimental research on uniaxial tensile behavior of AZ31B magnesium alloy thin sheet[J].Forging & Stamping Technology,2012,37(4):140-144. |
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| Authors: | YANG Dong-feng ZHAO Chang-cai HAO Hai-bin |
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| Affiliation: | 1.College of Vehicles and Energy,Yanshan University,Qinhuangdao 066004,China; 2.College of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China) |
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| Abstract: | Uniaxial tension tests of AZ31B magnesium alloy sheet(0.6 mm) specimens were carried out at the temperature range between 100~350 ℃ and the strain rate range of 1×10-3~1×10-1s-1 on Gleeble-3500 thermal simulator.Based on the experimental results,the mechanical properties of AZ31B magnesium alloy sheet were analyzed.The results show that at low deformation temperature range of 100~150 ℃,strain rate has little influence on flow stress of AZ31B magnesium alloy,in contrast,the strain rate has certain effect on fracture elongation of AZ31B magnesium alloy,and high strain rate will decrease the elongation of material.At higher deformation temperature(above 200 ℃),strain rate has an obvious influence on flow stress,showing significant strain rate sensitivity. |
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| Keywords: | magnesium alloy uniaxial tension deformation temperature strain rate |
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