Effect of Cooling Methods on Microstructure and Mechanical Properties of Ti-3573 Alloy after Solution Treatment
| Autor: | Zhuang Li, Jin Yu Li, Run Qi Zhang, Wen Hao Cai, Hao Xu Wang, Li Zhang, Yi Qin Cai, Xi Jun Cui, Qi Zhou |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Alloy 02 engineering and technology Solution treatment engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences Cooling rate Mechanics of Materials 0103 physical sciences Cooling methods engineering Fracture (geology) General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Materials Science Forum. 1003:54-59 |
| ISSN: | 1662-9752 |
| Popis: | In metastable beta Ti alloys, microstructural features can be varied over a wide range of length scales by changing different heat treatment parameters. Effect of cooling methods on microstructure and mechanical properties of Ti-3537 alloy after solution treatment was investigated. The result shows that with the decrease of cooling rate, the Vickers hardness of the alloy gradually increases. Among the three cooling methods of OQ, AC and FC, Ti-3573 alloy has the best shape and moderate yield strength, but tensile strength. The fractography of the β-substrate specimens showed that the fracture mode was ductile fracture. In the FC state, the α phase precipitates in a large amount in the Ti-3573 alloy, the yield strength and the tensile strength are greatly increased and the elongation is remarkably lowered. The tensile fracture shows a shallow fracture dip with low toughness. |
| Databáze: | OpenAIRE |
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