Microstructure and wear resistance of high-carbon pearlitic CrMo wear-resistant cast steels containing submicron-sized precipitates
Vanadium (V) plays a crucial role in the formation of precipitates. In this study, different amounts of submicron-sized precipitates were introduced in high-carbon pearlitic CrMo wear-resistant cast steel by the addition of V. The result shows that the microstructure of high-carbon CrMo wear-resista...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424030114 |
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| Summary: | Vanadium (V) plays a crucial role in the formation of precipitates. In this study, different amounts of submicron-sized precipitates were introduced in high-carbon pearlitic CrMo wear-resistant cast steel by the addition of V. The result shows that the microstructure of high-carbon CrMo wear-resistant cast steel consists of lamellar pearlite and submicron-sized precipitates. With higher V content, the density of submicron-sized precipitates increases. The wear resistance of the steel also enhances with the addition of V, which is primarily attributed to the formation of submicron-sized precipitates resulting in the enhancement of initial mechanical properties and the creation of a harder work-hardening layer in worn surface. The wear mechanisms involve microploughing, microcutting, microfatigue, and microcracking in high-carbon pearlitic CrMo wear-resistant cast steel, but the introduction of submicron-sized precipitates leads to a substantial reduction in the depth of microploughing and microcutting. |
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| ISSN: | 2238-7854 |