2011 Fiscal Year Final Research Report
In-situ observation of solidification process of weld by using synchrotron radiation towards construction of simulation model of weld solidification
| Project/Area Number |
22760559
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Material processing/treatments
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Keywords | 接合・溶接 / 溶接凝固 / 溶接金属 |
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| Research Abstract |
The solidification process in stainless steel welds was analyzed using a time-resolved X-ray diffraction technique. By using an undulator beam and a novel X-ray detector, not only the phase evolution during the solidification process but also the liquid reduction during the solidification process were analyzed in the reciprocal lattice space. Furthermore, to estimate the temperature that stimulates stray grain formation, the temperature profile at the centerline of a weld bead was measured by using a radiation thermometer with immersion-type optical fiber. It was shown that the acquired physical quantity concerning to solidification weld was useful toward construction of the phase-field model of weld solidification.
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[Remarks] 紀要. H. Terasaki, K. Moriguchi, Y. Komizo, On the application of multi-phase field modeling to the micro-stractural change in welding process, Transactions of JWRI,(2010), 43-46.
