金属学报  2007, Vol. 42 Issue (1): 17-22

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超声场作用下Al-1wt%Si合金铸坯水平连铸研究

高学鹏;李新涛;郄喜望;吴亚萍;李喜孟;李廷举

大连理工大学材料科学与工程学院原材料特种制备重点实验室

HORIZONTAL CONTINUOUS CASTING OF Al-1wt%Si ALLOY CAST INGOTS UNDER ULTRASONIC FIELD

Xue－Peng GAO;;;;;

大连理工大学材料科学与工程学院原材料特种制备重点实验室

高学鹏; 李新涛; 郄喜望; 吴亚萍; 李喜孟; 李廷举 . 超声场作用下Al-1wt%Si合金铸坯水平连铸研究[J]. 金属学报, 2007, 42(1): 17-22 .
, , , , , . HORIZONTAL CONTINUOUS CASTING OF Al-1wt%Si ALLOY CAST INGOTS UNDER ULTRASONIC FIELD[J]. Acta Metall Sin, 2007, 42(1): 17-22 .

摘要 参考文献 相关文章 Metrics 全文: PDF(707 KB)   摘要: 摘 要 研究了超声场对?0mmAl-1wt%Si合金键合线铸坯水平连铸过程的影响，并对其机理进行了探讨。实验结果表明：施加超声处理后，铸坯的表面质量得到了改善，当超声功率达到1000W时，表面粗糙度由未施加超声波时的40靘降为10靘；凝固组织得到了细化，平均晶粒度由94.1靘降为31.2靘；并且力学性能得到了提高，抗拉强度和延伸率分别提高了20.5%和37.5%，硬度也提高了23.9%；同时，Si元素在?#65288;Al）基体中的固溶度及其分布的均匀性得到了提高，晶界偏析得到了抑制，析出的单质Si形貌由不规则的针线状变为具有规则形貌的圆球状。 关键词 ： 超声场,  水平连铸,  Al-1wt%Si合金     Abstract：ABSTRACT In this paper, the effect of ultrasonic field during horizontal continuous casting of ?0mm Al-1wt%Si alloy bonding wire on the solidification has been investigated and the phenomenon has been theoretically interpreted. Experimental results showed that when the ultrasonic power of 1000W was imposed, the surface quality was improved, the surface roughness decreased from 40祄 to 10祄; the solidification structure was refined, the average grain size reduced from 94.1祄 to 31.2祄 and the mechanical properties were enhanced, not only the tensile strength and elongation increased by 20.5% and 37.5% respectively, but the hardness value increased by 23.9%. Meanwhile, the uniformity of the distribution of Si in ?(Al) was improved and the boundary segregation was suppressed, the fine globular microstructure of Si could be effectively obtained. Key words： ultrasonic field    horizontal continuous casting    Al-1wt%Si alloy 收稿日期: 2006-04-14      ZTFLH:  TG166.3   服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 高学鹏 李新涛 郄喜望 吴亚萍 李喜孟 李廷举 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2007/V42/I1/17 [1] Qi G J,Zhang S．J Mater Process Technol,1997;68:288 [2] Strandjord A,Popelar S,Jauernig C．Microelect Reliab, 2002;42:265 [3] Ramminger S,Seliger N,Wachutka G．Microelect Reliab, 2000;40:1521 [4] Bai X Q,Li D H,Zhang L,He J C．Acta Metall Sin,2002; 38:483 (白晓清,李东辉,张林,赫冀成．金属学报,2002;38:483) [5] Abramov V,Abramov O,Bulgakov V,Sommer F．Mater Lett,1998;37:27 [6] Eskin G I．Ultrason Sonochem,2001;8:319 [7] Seifert J,Fischer F．Ultrasonics,1977;15:154 [8] Zhang H B,Zhai Q J,Qi F P,Gong Y Y．Trans Nonfer- rous Met Soc Chin, 2004;14:302 [9] Li X T,Li T J,Li X M,Jin J Z．Ultrason Sonochem,2006; 13:121 [10] Li X T,Li Q L,Li T J,Song Y Q,Zhang J L,Jin J Z．Chin J Nonferrous Met, 2004;14:2060 (李新涛,李丘林,李廷举,宋艳琴,张金利,金俊泽．中国有色金属学报,2004;14:2060) [11] Li Q L,Li X T,Li T J,Jin J Z,Liu W,Bao C G．J Xi'an Jiaotong Univ,2005;39:1003 (李丘林,李新涛,李廷举,金俊泽,刘伟,鲍崇高．西安交通大学学报,2005;39:1003) [12]　Li X T,Li Q L,Li T J,Jin J Z．Rare Met Mater Eng, 2005;34(Suppl.2):80 (李新涛,李丘林,李廷举,金俊泽．稀有金属材料与工程,2005;　　34(增刊2):80) [13]Kuijpers M W A,van．Eck D,Kemmere M F,Keurentjes J T F．Science,2002;298:1969 [14】Campbell J．Int Met Rev,1981;26:71 [15] Qi P X．Squeeze Casting．Beijing:National Defence In- dustry Press,1984:16 (齐丕骧.挤压铸造．北京:国防工业出版社, 1984:16) [16] Li S S,Zhao A M,Mao W M,Zhong X Y,Han Y F．Acta Metall Sin,2000;36:545 (李树索,赵爱民,毛卫民,钟雪友,韩雅芳．金属学报,2000; 36:545) [17] Xiong Y H,Li P J,Yang A M,Yan W D,Zeng I) B,Liu L．Acta Metall Sin,2002;38:534 (熊玉华,李培杰,杨爱民,严卫东,曾大本,刘林金属学报,2002;38:534) [18] Gong L Q,Li J G,Zhou P,Wang F Q,Tong Z S,Tao Z D. Chin J Nonferrous Met,2004;14:2003 (龚丽勤,李建国,周鹏,王发奇,仝仲盛,陶古东.中国有色金属学报, 2004;14:2003) [1] 高声远 乐启炽 张志强 崔建忠. Al-Al4C3细化剂和超声场对纯Mg组织的影响[J]. 金属学报, 2010, 46(12): 1495-1500. [2] 郄喜望; 李捷; 马晓东; 张忠涛; 李廷举 . 超声场作用下Al-Si合金的除气效果及晶粒细化[J]. 金属学报, 2008, 44(4): 414-418 . [3] 赵继华; 陈启元 . 反应条件对超声波强化铝酸钠溶液种分过程的影响[J]. 金属学报, 2002, 38(2): 166-170 . [4] 赵继华; 陈启元 . Al（OH）3种分过程的超声场强化[J]. 金属学报, 2002, 38(2): 171-173 . [5] 张云鹏; 苏俊义; 陈铮; 林广伟 . 铸铁水平连铸中圆坯凝固过程的数值模拟[J]. 金属学报, 2001, 37(3): 287-290 . Viewed Full text Abstract Cited   Shared      Discussed