| 压射速度和料饼厚度对压铸AM60B镁合金压室预结晶的影响(英文) |
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| 引用本文： | 王柏树,熊守美. 压射速度和料饼厚度对压铸AM60B镁合金压室预结晶的影响(英文)[J]. 中国有色金属学会会刊, 2011, 21(4): 767-772 |
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| 作者姓名： | 王柏树 熊守美 |
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| 作者单位： | 王柏树,WANG Bai-shu(清华大学机械工程系汽车安全与节能国家重点实验室,北京100084;长春工业大学材料科学与工程学院先进结构材料省部共建教育部重点实验室,长春130012);熊守美,XIONG Shou-mei(清华大学机械工程系汽车安全与节能国家重点实验室,北京,100084) |
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| 基金项目： | Project(2009AA03Z114)supported by the National High-tech Research and Development Program of China; Project supported by Tsinghua-Toyo R&D Center of Magnesium and Aluminum Alloys Processing Technology |
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| 摘 要： | 采用不同的慢压射速度、快压射速度和不同的料饼厚度,压铸直径6.4mm、标距长度50mm的标准拉伸试样,观察压铸试样的显微组织,分析不同工艺对压室预结晶的影响,讨论压室预结晶与工艺参数的关系。结果表明:随着料饼厚度的增加,组织中的压室预结晶数量减少;低的慢压射速度可获得较大尺寸的压室预结晶;高的快压射速度有利于形成球状的压室预结晶。
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| 关 键 词： | AM60B镁合金 压铸 组织 压室预结晶 |
Effects of shot speed and biscuit thickness on externaly solidified crystals of high-pressure diet cast AM60B magnesium alloy |
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| WANG Bai-shu,XIONG Shou-mei. Effects of shot speed and biscuit thickness on externaly solidified crystals of high-pressure diet cast AM60B magnesium alloy[J]. Transactions of Nonferrous Metals Society of China, 2011, 21(4): 767-772 |
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| Authors: | WANG Bai-shu XIONG Shou-mei |
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| Affiliation: | WANG Bai-shu 1,2,XIONG Shou-mei 1 1. State Key Laboratory of Automotive Safety and Energy,Department of Mechanical Engineering,Tsinghua University,Beijing 100084,China,2. Key Laboratory of Advanced Structural Materials of Ministry of Education,Department of Materials Science and Engineering,Changchun University of Technology,Changchun 130012 |
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| Abstract: | Standard mechanical test bars with a diameter of 6.4 mm and a gauge length of 50 mm were processed, and the microstructures of die cast AM60B alloy under different die casting process parameters were observed. The influences of the slow shot speed, the fast shot speed and the biscuit thickness on the externally solidified crystals (ESCs) were investigated. With the increase of the biscuit thickness, the number of the ESCs in the cast samples decreases. Under a low slow shot speed, larg ESCs are found in the... |
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| Keywords: | AM60B magnesium alloy die casting microstructure externally solidified crystals |
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