| Al-Ti-C中间合金细化剂的组织及其细化性能 |
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| 引用本文： | 张柏清,马洪涛,李建国,方鸿生.Al-Ti-C中间合金细化剂的组织及其细化性能[J].金属学报,2000,36(4):341-346. |
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| 作者姓名： | 张柏清 马洪涛 李建国 方鸿生 |
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| 作者单位： | 清华大学材料科学工程系,北京,100084 |
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| 基金项目： | 国家"九五"攻关项目98-A28-01-18 |
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| 摘 要： | 以一析方法在低温、低搅拌条件下成功地制备了几种成分的Ａｌ－Ｔｉ－Ｃ中间合工采用Ｘ射线衍射（ＸＲＤ）,扫措电镜（ＳＥＭ）和能谱分析（ＥＤＳ）等手段对中间合金的相组成和显微组织进行了综合分析,结果表明,Ａｌ－Ｔｉ－Ｃ中间合中的第二相粒子为块状Ａｌ３Ｔｉ和亚微米尺寸的非整化合物ＴｉＣｘ,其中ｘ在０．４９～０．７８之间不等,细化结果表明。Ａｌ－Ｔｉ－Ｃ对工业纯铝具有良好的晶粒细化效果,细化的闰核心为Ｔｉ,
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| 关 键 词： | Al－Ti－C 中间合金 显微组织 晶粒细化 细化剂 |
| 文章编号： | 0412-1961(2000)04-0341-06 |
| 修稿时间： | 1999年11月8日 |
STUDY ON THE MICROSTRUCTURES AND GRAIN REFINING PERFORMANCE OF Al-Ti-C GRAIN REFINING MASTER ALLOYS |
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| ZHANG Baiqing,MA Hongtao,LI Jiangguo,FANG Hongsheng.STUDY ON THE MICROSTRUCTURES AND GRAIN REFINING PERFORMANCE OF Al-Ti-C GRAIN REFINING MASTER ALLOYS[J].Acta Metallurgica Sinica,2000,36(4):341-346. |
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| Authors: | ZHANG Baiqing MA Hongtao LI Jiangguo FANG Hongsheng |
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| Abstract: | Al-Ti-C master alloys have been prepared with a novel production method. X-ray diffraction,SEM and EDS were used to examine the phases and microstructures of the master alloys. The master alloys have block-like Al_3Ti particles and submicron size TiC_x with x ranging from 0.49 to 0.78, and show excellent grain refining performance for commercially pure aluminum. Tianium carbides were observed at the crystallization centers in refined castings. |
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| Keywords: | Al-Ti-C master alloy microstructure grain refinement |
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