| Autor: |
Qianyi Zhang, Yucheng Zhao, Guanglin Yuan, Weiming Yang |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Results in Physics, Vol 15, Iss , Pp - (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2211-3797 |
| DOI: |
10.1016/j.rinp.2019.102335 |
| Popis: |
In this paper, the microstructure and mechanical properties of FeCrMoVC high-speed steels fabricated using a rapid solidification technique were investigated. It was found that the alloy with free V content exhibited ultra-high fracture strength of 4900 MPa and large compression strain of 31.8%, but a lower yield strength of 1100 MPa. In contrast, with V content to 4 at%, the yield strength increased significantly to 3200 MPa. Micro-structure analysis revealed that the V addition plays an important role in promoting the formation of skeleton-like carbide (V6C5 phase), which can hinder the rapid propagation of shear bands, resulting in a good mechanical property. This special hard and finely ramified carbide network throughout the overall specimen can be regarded as a specific structure signal for the excellent mechanical properties of FeCrMoVC alloys. This result of the alloy with good mechanical property is expected to be used in industry as a high strength tool steel. Keywords: Microstructure, High-strength, Large compression strain, Carbide network |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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