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| Effect of Supergravity on Segregation Behavior of Pb-Sn Alloy |
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Received:June 19, 2012
Revised:June 20, 2012
Accepted:June 20, 2012
Published Online:November 26, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.12.014 |
| KeyWord:supergravity; Pb-Sn alloy; segregation; solidification structure; stratification |
| Author | Institution |
| LI Jingwei |
北京科技大学 钢铁冶金新技术国家重点实验室 北京 |
| SUN Shitong |
北京科技大学 钢铁冶金新技术国家重点实验室 北京 |
| GUO Zhan-cheng |
北京科技大学 钢铁冶金新技术国家重点实验室 北京 |
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| Abstract: |
| The effect of supergravity on the segregation behavior of solidification microstructure of metal was studied within the centrifugal furnace with Pb-Sn alloy as a sample. The results show that visible stratification occurs on Pb-Sn alloys which solidify under different supergravity fields. Under the supergravity field, Pb-rich (the denser solid) particles precipitate toward to the bottom of the sample and Sn-rich particles float to its top. The segregation also becomes obvious with increase of gravity coefficient. Segregation and stratification of microstructure on Pb-Sn alloy could be realized under supergravity. |
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