Abstract
This paper demonstrates how recent advances in synchrotron technology have allowed for the real-time X-ray imaging of solidification in Al-Si alloys, despite the small difference in atomic number of these elements. The experiments performed at the SPring-8 synchrotron, involved imaging the solidification of Al-1wt.%Si and Al-4wt.%Si alloys under a low-temperature gradient and a cooling rate of around 0.3 C/s. The nucleation and growth of the primary aluminum grains as well as the onset of eutectic solidification were clearly observed. In the alloys containing Al-4wt.%Si, contrast was sufficient to characterize the nucleation rate and growth velocity of the aluminum grains. The importance of improving observation of solidification in the Al-Si system by increasing the time resolution during critical events is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 134-140 |
| Number of pages | 7 |
| Journal | Materials Characterization |
| Volume | 85 |
| DOIs | |
| Publication status | Published - Oct 14 2013 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Real time synchrotron X-ray observations of solidification in hypoeutectic Al-Si alloys. / Nogita, Kazuhiro; Yasuda, Hideyuki; Prasad, Arvind; McDonald, Stuart D.; Nagira, Tomoya; Nakatsuka, Noriaki; Uesugi, Kentaro; Stjohn, David H.
In: Materials Characterization, Vol. 85, 14.10.2013, p. 134-140.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Real time synchrotron X-ray observations of solidification in hypoeutectic Al-Si alloys
AU - Nogita, Kazuhiro
AU - Yasuda, Hideyuki
AU - Prasad, Arvind
AU - McDonald, Stuart D.
AU - Nagira, Tomoya
AU - Nakatsuka, Noriaki
AU - Uesugi, Kentaro
AU - Stjohn, David H.
PY - 2013/10/14
Y1 - 2013/10/14
N2 - This paper demonstrates how recent advances in synchrotron technology have allowed for the real-time X-ray imaging of solidification in Al-Si alloys, despite the small difference in atomic number of these elements. The experiments performed at the SPring-8 synchrotron, involved imaging the solidification of Al-1wt.%Si and Al-4wt.%Si alloys under a low-temperature gradient and a cooling rate of around 0.3 C/s. The nucleation and growth of the primary aluminum grains as well as the onset of eutectic solidification were clearly observed. In the alloys containing Al-4wt.%Si, contrast was sufficient to characterize the nucleation rate and growth velocity of the aluminum grains. The importance of improving observation of solidification in the Al-Si system by increasing the time resolution during critical events is discussed.
AB - This paper demonstrates how recent advances in synchrotron technology have allowed for the real-time X-ray imaging of solidification in Al-Si alloys, despite the small difference in atomic number of these elements. The experiments performed at the SPring-8 synchrotron, involved imaging the solidification of Al-1wt.%Si and Al-4wt.%Si alloys under a low-temperature gradient and a cooling rate of around 0.3 C/s. The nucleation and growth of the primary aluminum grains as well as the onset of eutectic solidification were clearly observed. In the alloys containing Al-4wt.%Si, contrast was sufficient to characterize the nucleation rate and growth velocity of the aluminum grains. The importance of improving observation of solidification in the Al-Si system by increasing the time resolution during critical events is discussed.
UR - http://www.scopus.com/inward/record.url?scp=84885104040&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885104040&partnerID=8YFLogxK
U2 - 10.1016/j.matchar.2013.08.015
DO - 10.1016/j.matchar.2013.08.015
M3 - Article
AN - SCOPUS:84885104040
VL - 85
SP - 134
EP - 140
JO - Materials Characterization
JF - Materials Characterization
SN - 1044-5803
ER -