SEM In-situ Investigation of the Effects of Ca and Sr Additions on Cracking in Cast AZ91D Alloys at Different Temperatures

机译：钙和锶添加对不同温度铸造AZ91D合金开裂影响的SEM原位研究

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We studied the effects of the Ca and Sr additions on the microstructure and the cracking process of magnesium alloys with in-situ scanning electron microscope (SEM) images. We found that the Ca addition is not only able to refine the Mg_(17)Al_(12) phase but also form a new Al_2Ca phase, which lead to improved ductile of cast magnesium alloys at elevated temperature. The MgAlCaSr phase can be improved the hot resistance. However, the number of cracks per unit area increases with increasing Ca addition.

机译：我们使用原位扫描电子显微镜（SEM）图像研究了Ca和Sr的添加对镁合金的显微组织和开裂过程的影响。我们发现，添加Ca不仅能够细化Mg_（17）Al_（12）相，而且还可以形成新的Al_2Ca相，从而提高了铸造镁合金在高温下的延性。 MgAlCaSr相可以提高耐热性。但是，每单位面积的裂纹数随着Ca添加量的增加而增加。

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来源
《Asian Pacific Conference on Fracture and Strength;APCFS; 20061122-25;20061122-25; Sanya(CN);Sanya(CN)》|2006年|P.21232126|共2页
会议地点 Sanya(CN);Sanya(CN)
作者
Wang Xi-Shu; Tang Bin; Chen Jun;
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作者单位

Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China;

Teaching and Research Section of Metal Manufacturing Process, Fundamental Industry Training Center, Tsinghua University, Beijing 100084, China;

College of Mechanical Electri;

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原文格式 PDF
正文语种 eng
中图分类机械试验法;
关键词
Cast AZ91D; Ca addition; cracking; microstructure; in-situ observation;

机译：铸造AZ91D;添加Ca;开裂;显微组织;原位观察;

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专利

1. SEM In-situ Investigation of the Effects of Ca and Sr Additions on Cracking in Cast AZ91D Alloys at Different Temperatures [J] . Wang Xi-Shu, Tang Bin, Chen Jun Key Engineering Materials . 2007,第Pt3期

机译：钙和锶添加对不同温度铸造AZ91D合金开裂影响的SEM原位研究
2. Low-cycle fatigue small crack initiation and propagation behaviour of cast magnesium alloys based on in-situ SEM observations [J] . Wang XS, Liang F, Fan JH, Philosophical magazine: structure and properties of condensed matter . 2006,第11期

机译：基于原位SEM观察的铸造镁合金低周疲劳小裂纹萌生和扩展行为
3. Influence of additions of Sb and/or Sr on microstructure and tensile creep behaviour of squeeze-cast AZ91D Mg alloy [J] . Punit Kumar, A.K. Mondal, S.G. Chowdhury, Materials Science and Engineering . 2017,第jana23期

机译：Sb和/或Sr的添加对AZ91D镁合金压铸组织和拉伸蠕变行为的影响
4. SEM In-situ Investigation of the Effects of Ca and Sr Additions on Cracking in Cast AZ91D Alloys at Different Temperatures [C] . Wang Xi-Shu, Tang Bin, Chen Jun Asian Pacific Conference on Fracture and Strength . 2007

机译：SEM原位调查CA和SR添加对不同温度铸造AZ91D合金裂缝的影响
5. Development of As-Cast High Strength Aluminum Alloys with Ni and Sr addition [D] . Fang, Li. 2018

机译：添加Ni和Sr的铸造高强度铝合金的开发
6. Effect of Zn and Ca Addition on Microstructure and Strength at Room Temperature of As-Cast and As-Extruded Mg-Sn Alloys [O] . Yang Zhang, Leipeng Song, Xiaoyang Chen, 2018

机译：锌和钙的添加对铸态和挤压态Mg-Sn合金室温下组织和强度的影响
7. Fatigue short crack propagation behavior of selective laser melted Inconel 718 alloy by in-situ SEM study: Influence of orientation and temperature [O] . X.F. Ma, H.L. Zhai, L. Zuo, 2020

机译：选择性激光熔化的疲劳短裂纹传播行为通过原位SEM研究：取向和温度的影响

SEM In-situ Investigation of the Effects of Ca and Sr Additions on Cracking in Cast AZ91D Alloys at Different Temperatures

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