Effects of Primarily Solidified Dendrite and Thermal Treatments on the M23C6 Precipitation Behavior of High-Chromium White Iron
| Autor: | Chang-Yong Jo, Baig-Gyu Choi, Young-Gy Song, Je-Hyun Lee, Jun-Seok Oh |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Austenite
M23C6 precipitation behavior Materials science Mining engineering. Metallurgy Precipitation (chemistry) Metallurgy Metals and Alloys TN1-997 chemistry.chemical_element Thermal treatment high-Cr white iron conventional heat treatment Carbide Dendrite (crystal) Chromium chemistry General Materials Science ThermoCalc Dissolution Eutectic system dendrite volume fraction modified heat treatment |
| Zdroj: | Metals, Vol 11, Iss 1690, p 1690 (2021) Metals Volume 11 Issue 11 |
| ISSN: | 2075-4701 |
| Popis: | The precipitation behavior of M23C6 carbide during thermal treatment of high-Cr white iron with various fractions of primarily solidified dendrite was studied and reviewed. M23C6 precipitation in the primarily solidified dendrite occurred preferentially during conventional heat treatment, whereas it occurred scarcely in the eutectic austenite. The reaction between M7C3 and austenite caused the dissolution of M7C3 into austenite, followed by precipitation of M23C6 along the periphery of eutectic M7C3. Relatively low-temperature thermal treatment (modified heat treatment) led to precipitation of M23C6 particles in the eutectic austenite, which is presumed to be caused by solubility difference depending on temperature. |
| Databáze: | OpenAIRE |
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