| 脉冲电流对Al-Cu-Mg合金凝固过程中热裂纹的影响 |
| |
| 引用本文： | 张万高,胡仕成,沈剑,田郁林. 脉冲电流对Al-Cu-Mg合金凝固过程中热裂纹的影响[J]. 有色金属工程, 2017, 7(6) |
| |
| 作者姓名： | 张万高 胡仕成 沈剑 田郁林 |
| |
| 作者单位： | 中南大学机电工程学院,中南大学机电工程学院,中南大学机电工程学院,中南大学机电工程学院 |
| |
| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
| |
| 摘 要： | 通过施加脉冲电流,采用自行设计的低频中压脉冲电源研究了脉冲电流对Al-Cu-Mg合金凝固过程中热裂纹的影响。结果表明,脉冲电流可以有效抑制热裂纹的产生与扩展,在脉冲频率0~400 Hz范围内,随着脉冲频率的增加,裂纹体积在下降,在400 Hz的时候,裂纹体积最小达到43.18 mm~3,但继续增加脉冲电流频率,裂纹体积在增加。
|
| 关 键 词： | 脉冲电流，热裂纹，裂纹体积 |
| 收稿时间： | 2016-07-04 |
| 修稿时间： | 2016-07-27 |
Effect of Pulse Current on Hot Cracking During Solidification of Al-Cu-Mg Alloy |
| |
| zhangwangao,hushicheng,shenjian and tianyulin. Effect of Pulse Current on Hot Cracking During Solidification of Al-Cu-Mg Alloy[J]. Nonferrous Metals Engineering, 2017, 7(6) |
| |
| Authors: | zhangwangao hushicheng shenjian tianyulin |
| |
| Affiliation: | School of mechanical and electrical engineering, Central South University,School of mechanical and electrical engineering, Central South University,School of mechanical and electrical engineering, Central South University,School of mechanical and electrical engineering, Central South University |
| |
| Abstract: | By applying the pulse current,the industrial alloy was treated by low frequency medium voltage pulse power supply designed by ourselves.the effect of pulse current on the thermal crack of Al-Cu-Mg alloy during the solidification process was studied.Test results show that:Pulse current can effectively suppress the generation of hot cracks, in the range of pulse frequency 0-400HZ, with the increase of frequency, the size of the crack down, at the time of 400HZ, the minimum crack volume up to 43.18mm3,But continue to increase the pulse current frequency, the crack volume is increased. |
| |
| Keywords: | Pulse Current Hot Cracking Crack Volume |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《有色金属工程》浏览原始摘要信息 |
|
点击此处可从《有色金属工程》下载全文 |
|
