AI Article Synopsis
- The study examines how the dissolution of carbides affects martensite oversaturation and mechanical properties during steel heat treatment.
- Various external factors can influence the kinetics of carbide dissolution, and the research uses dilatometer analysis to monitor this process.
- It specifically compares the austenitization of 100CrMnSi6-4 bearing steel after spheroidization and soft annealing, aiming to quantify the amount of undissolved cementite and its impact on carbon content and final properties post-quenching.
Article Abstract
The dissolution of carbides during the heating to the quenching temperature has a significant effect on the martensite oversaturation and the resulting mechanical properties. The kinetics of dissolution can be influenced by various external factors. This work deals with monitoring the carbide dissolution utilizing dilatometer analysis. The austenitization of 100CrMnSi6-4 bearing steel in two initial states was compared-after accelerated spheroidization annealing and conventional soft annealing. The main objective was to determine the amount of undissolved cementite during austenitization in the temperature range where only austenite and cementite are present in the structure. The austenitization temperature determines the degree of cementite dissolution and, consequently, the carbon content in austenite and thus the final properties after quenching. The cementite dissolution was quantified from dilatometric curves and image analysis.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180380 | PMC |
| http://dx.doi.org/10.3390/ma16093523 | DOI Listing |
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