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Effects of surface roughness and alloying element on surfacemorphology and tribology of low-alloy steel after gas-nitrocarburizing |
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| รหัสดีโอไอ | |
| Creator | 1. Naruenat Polyiam 2. Prasert Aengchuan 3. Nipon Taweejun 4. Piyamon Poapongsakorn |
| Title | Effects of surface roughness and alloying element on surfacemorphology and tribology of low-alloy steel after gas-nitrocarburizing |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 4 |
| Page no. | 1190-1196 |
| Keyword | gas nitrocarburizing, surface roughness, low alloy steel, wear |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | This paper aimed to study the effects of initial surface preparation and Chromium (Cr) content on morphology andtribological properties of gas nitrocarburized AISI 1015 steel and AISI 4115 steel. Two different surface preparation methods,i.e., polishing and machining, were employed in order to achieve different surface roughnesses and topologies. Surface treatmentwas performed using nitrocaburizing technique. After the surface treatment, white layers formed by gas nitrocarburizing wereobserved and analyzed by following techniques; surface roughness test, optical microscopy, scanning electron microscopy, X-raydiffraction, microhardness test, and pin-on-disk test. It was found that morphology and tribological properties of thenitrocaburized steels were significantly influenced by the initial surface roughness. The results indicate that the wear volume lossincreases with an increase in the initial surface roughness, whereas increasing of Cr element increases the surface hardness ofsteel, but decreases the wear resistance. |
