Modeling Hardenable Stainless Steels Using Calculated Martensite Start Temperatures in Thermodynamic Equilibrium Calculations
| Autor: | Merlin Seifert, Werner Theisen |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Quenching
Work (thermodynamics) Materials science Structural material Thermodynamic equilibrium Metallurgy Metals and Alloys 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Carbide 010309 optics Mechanics of Materials Martensite 0103 physical sciences Dilatometer 0210 nano-technology Hardenability |
| Zdroj: | Metallurgical and Materials Transactions A. 47:5953-5959 |
| ISSN: | 1543-1940 1073-5623 |
| Popis: | In this work, martensite start temperatures of several martensitic stainless steels containing different amounts and types of carbides were calculated by means of thermodynamic equilibrium calculations. Two different equations were introduced into the Thermo-Calc® software. The calculations were performed for the respective compositions at austenitization temperature and compared to martensite start temperatures measured using a quenching dilatometer. The purpose was to estimate hardenability and hardness of newly developed steels. Even though the equations used were determined empirically for specific alloying systems, general trends for the investigated steels were found to be reproduced very well. Thus, the comparison of martensite start temperatures of different steels in comparable alloying systems is highly effective for modeling new steels and for predicting their hardenability. |
| Databáze: | OpenAIRE |
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