[1]赵红亮,高雅,孙启宴,等.Al-Ti-C-Sr细化剂制备的正交优化及挤压研究[J].郑州大学学报(工学版),2014,35(03):27-30.[doi:10.3969/i.issn.1671-6833.2014.03.007]
　ZHAO Hongliang,GAO Ya,SUN Qiyan,et al.Preparation of Al-Ti-C.Sr Refiner by Orthogonal Experiment and Extrusion[J].Journal of Zhengzhou University (Engineering Science),2014,35(03):27-30.[doi:10.3969/i.issn.1671-6833.2014.03.007]
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Al-Ti-C-Sr细化剂制备的正交优化及挤压研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
35
期数:
2014年03期
页码:
27-30
栏目:
出版日期:
2014-06-30

文章信息/Info

Title:
Preparation of Al-Ti-C.Sr Refiner by Orthogonal Experiment and Extrusion
作者:
赵红亮; 高雅; 孙启宴; 翁康荣; 张景超
Author(s):
ZHAO Hongliang; GAO Ya; SUN Qiyan; WENG Kangrong; ZHANG Jingchao
School of Materials Seience and Engineering, Zhengzhou University, Zhengzhou 450001, China
Keywords:
Al-3Ti-0.2C-5Sr grain reliner;  orthogonal experiment;  extrusion;  relining perlormance
分类号:
TG223
DOI:
10.3969/i.issn.1671-6833.2014.03.007
文献标志码:
A
Abstract:
This paper prepared Al-Ti-C-Sr grain refiner by in - situ reaction with pure aluminum and K2TiF6 graphite powder, pure strontium. Orthogonal experiment was applied to oplimize the composition and preparation proeess of the Al-Ti-C-Sr reliner. The prepared Al-Ti-C-Sr refiner by oplimal scheme was extruded andthe mierostruelure and relining performanee were studied. The results show the oplimal scheme: compositionwas Al-3’Ti-0.2C-5Sr, K,TiF, and graphite powder were held 60 min, pure strontium was held 15 min. when Al-3Ti-0.20-5Sr was exlruded, the size of TiAl3, Al4Sr and Al-Ti-Sr phases decreases, and TiC phases distributed uniformly in the matrix. Afer adding extruded Al-3Ti-0.2C-5Sr in A356, the average grain size de.ereases from 1195 um to 350 ym, the seeondary dendrite arm spacing deereases from 23.2 um to 21.5 um.
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