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材料工程  2018, Vol. 46 Issue (8): 84-90    DOI: 10.11868/j.issn.1001-4381.2016.001352
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
不同压制压力制备的Al-TiO2-C细化剂对ZL101合金细化效果的影响
王鹏1, 张瑞英1,2, 韩小伟1, 刘天丽1, 杨森1
1. 内蒙古工业大学 材料科学与工程学院, 呼和浩特 010051;
2. 内蒙古轻合金重点实验室, 呼和浩特 010051
Effects of Al-TiO2-C Refiners Prepared by Different Compacting Pressures on Refinement Performance of ZL101 Alloy
WANG Peng1, ZHANG Rui-ying1,2, HAN Xiao-wei1, LIU Tian-li1, YANG Sen1
1. School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China;
2. Inner Mongolia Key Laboratory of Light Metal Materials, Hohhot 010051, China
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摘要 以Al粉、TiO2粉、C粉和稀土La2O3粉为原料,利用放热弥散法原位合成稀土La2O3质量分数为0.3%的Al-TiO2-C晶粒细化剂,压制压力分别为80,85,88,90kN和92kN,研究不同压力制备的细化剂对ZL101合金细化效果的影响。采用X射线衍射仪、扫描电镜及能谱仪研究压制压力对Al-TiO2-C细化剂相组成和显微组织的影响。利用MATLAB软件提取特征值评价Al-TiO2-C细化剂对ZL101合金的细化能力。结果表明:压制压力为90kN时,Al-TiO2-C细化剂组织中Al3Ti呈圆块状数量明显增多,尺寸均匀,形核颗粒TiC和Al2O3数量有所增多,此种组织的细化剂对ZL101合金具有最好的细化效果。
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王鹏
张瑞英
韩小伟
刘天丽
杨森
关键词 放热弥散法Al-TiO2-C细化剂压制压力ZL101合金细化效果    
Abstract:The Al-TiO2-C grain refiners with the mass fraction of 0.3% La2O3 were synthesized by the exothermic dispersion method using Al,TiO2,C, and La2O3 powders as raw materials, The refiners were fabricated by different compacting pressures, including 80, 85, 88, 90kN and 92kN respectively. Effect of Al-TiO2-C refiners prepared by different compacting pressures on refinement performance of ZL101 alloy was studied. The effects of compacting pressures on the phase morphology and microstructure of Al-TiO2-C refiners were investigated by using XRD, SEM and EDS analysis. The refinement capability of Al-TiO2-C refiners on ZL101 alloy was evaluated by using extracting characteristic values from thermal analysis cooling curves of ZL101 alloy, which comes from MATLAB software. The results show that the optimal compacting pressure is 90kN, Al3Ti exhibiting round block obviously increases and the size is uniformly distributed in the microstructure of refiners; moreover, the number of nucleation particles TiC as well as Al2O3 is increased. Al-TiO2-C has the best refinement performance on ZL101 alloy.
Key wordsexothermic dispersion method    Al-TiO2-C refiner    compacting pressure    ZL101 alloy    refinement performance
收稿日期: 2016-11-14      出版日期: 2018-08-17
中图分类号:  TB331  
通讯作者: 张瑞英(1972-),女,副教授,博士,主要从事铝合金及金属基复合材料的研究,联系地址:内蒙古工业大学材料科学与工程学院(010051),E-mail:zhang_ruiying@126.com     E-mail: zhang_ruiying@126.com
引用本文:   
王鹏, 张瑞英, 韩小伟, 刘天丽, 杨森. 不同压制压力制备的Al-TiO2-C细化剂对ZL101合金细化效果的影响[J]. 材料工程, 2018, 46(8): 84-90.
WANG Peng, ZHANG Rui-ying, HAN Xiao-wei, LIU Tian-li, YANG Sen. Effects of Al-TiO2-C Refiners Prepared by Different Compacting Pressures on Refinement Performance of ZL101 Alloy. Journal of Materials Engineering, 2018, 46(8): 84-90.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.001352      或      http://jme.biam.ac.cn/CN/Y2018/V46/I8/84
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