Feasibility study of welding dissimilar Advanced and Ultra High Strength Steels
| Autor: | Francois Njock Bayock, Paul Kah, Mvola Belinga, Antti Salminen, Xiaochen Yang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Technology Materials science Chemical technology Weldability Metallurgy welding quality 02 engineering and technology Welding TP1-1185 021001 nanoscience & nanotechnology Condensed Matter Physics Machine industry welding parameters law.invention ahss 020901 industrial engineering & automation law uhss dissimilar weld joint General Materials Science welding processes 0210 nano-technology |
| Zdroj: | Reviews on Advanced Materials Science, Vol 59, Iss 1, Pp 54-66 (2020) |
| ISSN: | 1605-8127 |
| Popis: | This study concerns the weldability of dissimilar Ultra high-strength steel (UHSS) and advanced high-strength steel (AHSS), which is used in the modern machine industry. The materials offered superior strength as well as relatively low weight, which reduces microstructure contamination during a live cycle. The choice of the welding process base of the base material (BM) and welding parameters is essential to improve the weld joint quality. S700MC/S960QC was welded using a gas metal arc welding (GMAW) process and overmatched filler wire, which was performed using three heat input (7, 10, and 15 kJ/cm). The weld samples were characterized by a Vickers-hardness test, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). The test reveals a decrease of softening areas in the HAZ and the formation of the stable formation of Bainite-Ferrite for S700MC and Bainite-martensite for S960QC when the heat input of 10 kJ/cm is used. It is recommended to use the GMAW process and Laser welding (Laser beam-MIG), with an optimal welding parameter, which will be achieved a high quality of manufacturing products. |
| Databáze: | OpenAIRE |
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