[article]
| Titre : |
Particle size effects on slurry erosion of 5117 steels |
| Type de document : |
texte imprimé |
| Auteurs : |
A. Abouel-Kasem, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
07 p. |
| Note générale : |
Tribology |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Erosion Impact (mechanical) Particle size Slurries Steel Surface morphology Wear |
| Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
| Résumé : |
The effect of particles size and shape on erosion rates and erosion mechanisms of 5117 steels are investigated using slurry whirling-arm ring. Six different sized silica sand particles are used as erodent. These particles are characterized in terms of their average diameter, aspect ratio, and circularity factor. The measured average diameter varies from 112.7 µm to 516.4 µm. The wear tests are carried out at impact velocity of 15 m/s and 30 deg and 90 deg impact angles using a sand-water mixture of 1 wt % concentration. Analysis of erosion rates shows that there exists threshold energy of impacting particles at which a transition in erosion rate is noticed for sizes of 200 µm. It is also observed that the erosion rate increases with the increase in shape factors (aspect ratio and circularity factor). The surface morphology of the eroded surface at impact of 30 deg shows that below 200 µm, the erosion mechanism is indentation and material extrusion and above 200 µm, the erosion mechanism is ploughing. |
| DEWEY : |
621.5 |
| ISSN : |
0742-4787 |
| En ligne : |
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] |
in Transactions of the ASME . Journal of tribology > Vol. 133 N° 1 (Janvier 2011) . - 07 p.
[article] Particle size effects on slurry erosion of 5117 steels [texte imprimé] / A. Abouel-Kasem, Auteur . - 2012 . - 07 p. Tribology Langues : Anglais ( eng) in Transactions of the ASME . Journal of tribology > Vol. 133 N° 1 (Janvier 2011) . - 07 p.
| Mots-clés : |
Erosion Impact (mechanical) Particle size Slurries Steel Surface morphology Wear |
| Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
| Résumé : |
The effect of particles size and shape on erosion rates and erosion mechanisms of 5117 steels are investigated using slurry whirling-arm ring. Six different sized silica sand particles are used as erodent. These particles are characterized in terms of their average diameter, aspect ratio, and circularity factor. The measured average diameter varies from 112.7 µm to 516.4 µm. The wear tests are carried out at impact velocity of 15 m/s and 30 deg and 90 deg impact angles using a sand-water mixture of 1 wt % concentration. Analysis of erosion rates shows that there exists threshold energy of impacting particles at which a transition in erosion rate is noticed for sizes of 200 µm. It is also observed that the erosion rate increases with the increase in shape factors (aspect ratio and circularity factor). The surface morphology of the eroded surface at impact of 30 deg shows that below 200 µm, the erosion mechanism is indentation and material extrusion and above 200 µm, the erosion mechanism is ploughing. |
| DEWEY : |
621.5 |
| ISSN : |
0742-4787 |
| En ligne : |
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] |
|
Particle size effects on slurry erosion of 5117 steels in Transactions of the ASME . Journal of tribology, Vol. 133 N° 1 (Janvier 2011)
