| Autor: |
Turnad Lenggo Gintar, Hasan Fawad, Ahmad Majdi Abdul-Rani, Adam Umar Alkali |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Applied Mechanics and Materials. :1287-1291 |
| ISSN: |
1662-7482 |
| Popis: |
An experimental investigation had been carried out for heating-only on samples of type 304 stainless steel with oxyacetylene gas flame set to neutral flame with temperature 27000-3300°C. The flame effect on surface integrity was investigated in terms of hardness test and microstructural characterization. Substrates temperatures were raised to 355°C as well as 550°C while oxyacetylene flame travels at approximate of 74 mm/min along the span of the material. The experimental outcome revealed the microstructures from two examined conditions: Initial grain structures as well as grain structure when flame heated to 355°C has retained austenite crystal structure while flame heating to 5000-550°C revealed chromium carbide precipitates. Within the investigated temperature range of 5000-550°C, preheating was evidently proven to result to sensitization. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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