Grain boundary segregation of sulfur in iron |
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| Affiliation: | 1. Department of Mechanical Engineering, RYM Engineering College, Ballari, Karnataka, India;2. Deputy Manager, Aircraft Research & Design Centre, HAL, Bangalore 560037, Karnataka, India;3. Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumakuru 572103, Karnataka, India;1. Department of Mechanical Engineering, Karpagam College of Engineering, Coimbatore 641032, India;2. Department of Mechanical Engineering, NIT Trichy-620015, India;3. Department of Mechanical Engineering, Government College of Technology, Coimbatore 641013, India;1. Department of Mechanical Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran;2. Department of Mechanical Engineering, University College of Nabi Akram (UCNA), Tabriz, Iran;1. Department of Materials Science and Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran;2. Department of basic sciences, Hamedan University of Technology, Hamedan 65155, Iran;3. Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, South Korea |
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| Abstract: | This paper reports a study of grain boundary segregation of sulfur in iron. The results show that if the amount of sulfur in the alloy is greater than the solubility limit, the amount of segregation increases with increasing ageing temperature. When the temperature is raised above the point where all sulfur goes into solution, the amount of segregation decreases with increasing temperature. These results can be explained quite straightforwardly by McLean's model for segregation. However, at high bulk concentrations. Auger analysis may be difficult because the signal obtained from a grain boundary facet will arise from a combination of segregated sulfur and precipitated sulfur. |
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