Joining of duplex stainless steel through selective microwave hybrid heating technique without using filler material
| Autor: | Shankar Sehgal, Virinder Kumar |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Heat-affected zone Materials science Duplex (telecommunications) Microwave applicator 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Indentation hardness law.invention law 0103 physical sciences Composite material Process time 0210 nano-technology Microwave Heating effect Susceptor |
| Zdroj: | Materials Today: Proceedings. 28:1314-1318 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.04.509 |
| Popis: | In this paper, the feasibility of joining duplex stainless steel (SS2205) through a novel microwave joining technique has been investigated. Specimens of cross-section 3.5 mm × 5 mm were selected for butt joining purpose, completed by each half of SS2205 and SS2205. Experiments were carried out in a microwave applicator at 2.45 GHz frequency and 900 W. Duplex stainless steel specimens have been successfully joined through selective microwave hybrid heating technique at 300 s of exposure time. The vertical cavity-type feeder was used to feed charcoal in order to concentrate the heating effect around the joining region. Charcoal powder was used as a susceptor to initiate as well as accelerate the heating process. Optimum process time for joining of SS2205-SS2205 has been found by the trial method, using a constant gap of 30 s between successive trials. The joints have been characterized mechanically through the micro-hardness test. Hardness tests validate a proportional increase in hardness from heat affected zone to the joining region for all manufactured joints. |
| Databáze: | OpenAIRE |
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