对直径为10 mm的Al-1%Si合金水平连铸过程施加超声处理后,铸坯的表面质量得到了改善,凝固组织得到了细化,力学性能得到了提高.当超声功率达到1000 W时,表面粗糙度由未施加超声波时的40 μm降为10 μm;平均晶粒度由94.1 μm降为31.2μm;抗拉强度、延伸率和硬度分别提高了20.5%、37.5%和23.9%;同时,Si元素在α(Al)基体中分布的均匀性得到了提高,晶界偏析得到了抑制,析出的Si相形貌由条状变为颗粒状.
参考文献
| [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 Nonferrous 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 Industry 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 D 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,陶占东.中国有色金属学报,2004;14:2003) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%