Al-Ti-C中间合金细化剂的组织及其细化性能

金属学报, 2000, 36(4): 341-346. doi: 10.3321/j.issn:0412-1961.2000.04.002

Al-Ti-C中间合金细化剂的组织及其细化性能

张柏清 ^1, , 马洪涛 ^2, , 李建国 ^3, , 方鸿生 ^4,

1.清华大学材料科学工程系,北京,100084

2.清华大学材料科学工程系,北京,100084

3.清华大学材料科学工程系,北京,100084

4.清华大学材料科学工程系,北京,100084

基金项目: 国家科技攻关项目(98-A28-01-18)

关键词： Al-Ti-C , 中间合金 , 显微组织 , 晶粒细化

STUDY ON THE MICROSTRUCTURES AND GRAIN REFINING PERFORMANCE OF Al-Ti-C GRAIN REFINING MASTER ALLOYS

以一种新方法在低温、低搅拌条件下成功地制备了几种成分的Al-Ti-C中间合金,并采用X射线衍射(XRD)、扫描电镜(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中间合金中的第二相粒子为块状Al3Ti和亚微米尺寸的非整比化合物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,细化组织的晶粒核心为Ti,C化合物粒子.

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Al-Ti-C中间合金细化剂的组织及其细化性能

STUDY ON THE MICROSTRUCTURES AND GRAIN REFINING PERFORMANCE OF Al-Ti-C GRAIN REFINING MASTER ALLOYS

参考文献