Sintered Fe-Ni-Si-C alloys
| Autor: | Rungtip Krataithong, Tiwat Kaewkam, Thanyaporn Yotkaew, Panya Kansuwan, Ruangdaj Tongsri, Pongsak Wila, Nattaya Tosangthum, Naoto Ohtake |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 1137:012035 |
| ISSN: | 1757-899X 1757-8981 |
| DOI: | 10.1088/1757-899x/1137/1/012035 |
| Popis: | The aim of this research is to explore the effect of nickel content on microstructural development and mechanical properties of sintered Fe-Ni-Si-C alloys. The sintered alloys were prepared from powder mixtures of pre-alloyed Fe-Ni-based powders (nickel contents varied as 0.45, 0.90, 1.80, and 4.00 wt.%) and fixed 4 wt.% silicon carbide powder by using a powder metallurgical process. Sintering was performed in a vacuum furnace at 1250°C for 45 minutes and slow cooling in the furnace. Microstructures of sintered alloys varied with nickel contents. Nickel showed a strong influence on promoting bainitic ferrite/martensite-austenite (BF/M-A) structure formation. Retained austenite in BF/M-A structure was found to increase with increasing nickel content. Tensile properties (strength and elongation value) of sintered alloys increased with increasing nickel content. |
| Databáze: | OpenAIRE |
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