[article]
Titre : |
Repeatability estimation in galling resistance testing |
Type de document : |
texte imprimé |
Auteurs : |
Scott R. Hummel, Auteur ; Jeffrey Helm, Auteur |
Année de publication : |
2011 |
Article en page(s) : |
05 p. |
Note générale : |
Tribology |
Langues : |
Anglais (eng) |
Mots-clés : |
Adhesion Plastic deformation Probability Stainless steel Welding |
Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
Résumé : |
Galling is a severe form of mechanical surface damage, commonly observed in metals, that is accompanied by adhesive transfer, extensive plastic deformation, and/or cold-welding of the mating surfaces. It can lead to seizure or rapid failure of machine components. Stainless steels are particularly prone to galling. A new galling test and analysis method that reflects the statistical nature of galling is described. The new ASTM method (G196), which embodies a probabilistic approach to galling, is superior to an older ASTM test method (G98), which produces only a single threshold stress for a given combination of materials. A computer-modeled experiment involving a 300 series stainless steel is used to illustrate how the enhanced analysis can be applied to determine the repeatability of galling test results. |
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. 132 N° 4 (Octobre 2010) . - 05 p.
[article] Repeatability estimation in galling resistance testing [texte imprimé] / Scott R. Hummel, Auteur ; Jeffrey Helm, Auteur . - 2011 . - 05 p. Tribology Langues : Anglais ( eng) in Transactions of the ASME . Journal of tribology > Vol. 132 N° 4 (Octobre 2010) . - 05 p.
Mots-clés : |
Adhesion Plastic deformation Probability Stainless steel Welding |
Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
Résumé : |
Galling is a severe form of mechanical surface damage, commonly observed in metals, that is accompanied by adhesive transfer, extensive plastic deformation, and/or cold-welding of the mating surfaces. It can lead to seizure or rapid failure of machine components. Stainless steels are particularly prone to galling. A new galling test and analysis method that reflects the statistical nature of galling is described. The new ASTM method (G196), which embodies a probabilistic approach to galling, is superior to an older ASTM test method (G98), which produces only a single threshold stress for a given combination of materials. A computer-modeled experiment involving a 300 series stainless steel is used to illustrate how the enhanced analysis can be applied to determine the repeatability of galling test results. |
DEWEY : |
621.5 |
ISSN : |
0742-4787 |
En ligne : |
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] |
|