| Distribution uniformity of added elements in twin-roll cast Al-Zn-Mg-Cu alloy by multi-electromagnetic fields | |
| Alternative Title | Distribution uniformity of added elements in twin-roll cast Al–Zn–Mg–Cu alloy by multi-electromagnetic fields |
| Su Xin1; Xu GuangMing1; Jiang DingHui3 | |
| 2015 | |
| Source Publication | RARE METALS
 |
| ISSN | 1001-0521 |
| Volume | 34Issue:8Pages:546-552 |
| Abstract | The micromorphology and the concentration of massive precipitates produced by twin-roll casting (TRC) processes without and with multi-electromagnetic fields for Al-Zn-Mg-Cu alloy at 670 degrees C were investigated in detail by means of optical microscopy (OM) and electron probe micro analyzer (EPMA). The results clearly show that under a 0.2 T static magnetic field, the macro-segregation bands are remarkably alleviated according to the order of uniform static magnetic field, half-wave oscillating electromagnetic field as well as alternating oscillating electromagnetic field, as compared with the non-field TRC process (B = 0). Moreover, under the alternating oscillating electromagnetic TRC process, almost all segregation bands disappear. Additionally, through the observation on a smaller scale, the netlike precipitates elongated and broken by electromagnetic force, and replaced by numerous bulk depositions. EPMA analysis shows that the added atoms are diffused from deposition to alpha (Al) matrix, resulting in that the solute concentration in and around the precipitates is tending toward uniformity and stability. |
| Other Abstract | The micromorphology and the concentration of massive precipitates produced by twin-roll casting (TRC) processes without and with multi-electromagnetic fields for Al–Zn–Mg–Cu alloy at 670 ℃ were investigated in detail by means of optical microscopy (OM) and electron probe micro analyzer (EPMA). The results clearly show that under a 0.2 T static magnetic field, the macro-segregation bands are remarkably alleviated according to the order of uniform static magnetic field, half-wave oscillating electromagnetic field as well as alternating oscillating electromagnetic field, as compared with the non-field TRC process (B = 0). Moreover, under the alternating oscillating electromagnetic TRC process, almost all segregation bands disappear. Additionally, through the observation on a smaller scale, the netlike precipitates elongated and broken by electromagnetic force, and replaced by numerous bulk depositions. EPMA analysis shows that the added atoms are diffused from deposition to α (Al) matrix, resulting in that the solute concentration in and around the precipitates is tending toward uniformity and stability. |
| Keyword | MICROSTRUCTURES Al-Zn-Mg-Cu alloy Electromagnetic field Twin-roll casting Macro-segregation bands |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Basic Research Program of China] |
| CSCD ID | CSCD:5482487 |
| Citation statistics |
Cited Times:3[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/147611 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院金属研究所 2.上海市地震局 3.Guangdong Donggong Informat Science & Technol Co Ltd, Foshan 510000, Peoples R China |
| Recommended Citation GB/T 7714 | Su Xin,Xu GuangMing,Jiang DingHui. Distribution uniformity of added elements in twin-roll cast Al-Zn-Mg-Cu alloy by multi-electromagnetic fields[J]. RARE METALS,2015,34(8):546-552. |
| APA | Su Xin,Xu GuangMing,&Jiang DingHui.(2015).Distribution uniformity of added elements in twin-roll cast Al-Zn-Mg-Cu alloy by multi-electromagnetic fields.RARE METALS,34(8),546-552. |
| MLA | Su Xin,et al."Distribution uniformity of added elements in twin-roll cast Al-Zn-Mg-Cu alloy by multi-electromagnetic fields".RARE METALS 34.8(2015):546-552. |
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