High-strength wire + arc additive manufactured steel
| Autor: | Feng Chen, Hu Ruizhang, Yang Tuoyu, Maoxue Liu, Chun Guo, Liyong Zhang, Wei Baoli |
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| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Materials science Metals and Alloys High strength steel 02 engineering and technology Crystal structure 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Arc (geometry) 020901 industrial engineering & automation Phase composition Materials Chemistry Physical and Theoretical Chemistry Composite material 0210 nano-technology |
| Zdroj: | International Journal of Materials Research. 111:325-331 |
| ISSN: | 2195-8556 1862-5282 |
| DOI: | 10.3139/146.111890 |
| Popis: | High-strength 690-MPa steel was prepared using a wire + arc additive manufacturing (WAAM) technology. The phase composition, microstructure, and crystal structure of highstrength 690-MPa steel samples were analysed, and the results show that a sample prepared using WAAM technology achieves a good formation quality. The metallographic structure was mainly acicular ferrite, massive ferrite, and granular bainite. The microhardness distribution of the vertical and horizontal sections of the samples is uniform. Excellent mechanical properties of the specimen were shown, including a horizontal yield strength of 536 MPa, a tensile strength of 760 MPa, an elongation of 23.5%, a Charpy impact value of 70 J at -508C, a vertical yield strength of 486 MPa, a tensile strength of 758 MPa, an elongation of 21.5%, and a Charpy impact value of 51 J at -508C. |
| Databáze: | OpenAIRE |
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