Liquation behavior in the weld HAZ of high Si nodular iron
- Title
- Liquation behavior in the weld HAZ of high Si nodular iron
- Author
- 이창희
- Keywords
- alloys; carbon and graphite; welding; segregation; focused ion beam (FIB)
- Issue Date
- 2012-04
- Publisher
- Korean Institute Metals Materials
- Citation
- Metals and Materials International, 18(2), P.371-377
- Abstract
- In the present study, liquation behavior including the constitutional liquation phenomena in the weld heataffected zone (HAZ) of nodular cast iron with 4% Si was investigated. The thermal cycle of the weld HAZ was simulated using a Gleeble simulator at various peak temperatures and a fast heating rate of 1000 degrees C/sec was selected to observe the constitutional liquation phenomenon. Differential thermal analysis has shown that the eutectic constituents of gamma + Laves and gamma + Fe3C begin to melt at 1120 degrees C and 1140 degrees C, respectively. Meanwhile, constitutional liquation by gamma/graphite reaction occurred above 1140 degrees C, due to carbon enrichment around the graphite nodules.
- URI
- https://link.springer.com/article/10.1007/s12540-012-2024-4http://hdl.handle.net/20.500.11754/49745
- ISSN
- 1598-9623
- DOI
- 10.1007/s12540-012-2024-4
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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