کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4986793 | 1454956 | 2017 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tribological performance of laser-patterned chain links - Influence of pattern geometry and periodicity
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Tribological performance of laser-patterned chain links - Influence of pattern geometry and periodicity Tribological performance of laser-patterned chain links - Influence of pattern geometry and periodicity](/preview/png/4986793.png)
چکیده انگلیسی
In this work, we study friction and wear of laser-patterned chain links (42CrMo4 steel) using a specially modified ball-on-disk tribometer under linear reciprocating sliding (normal load of 15N and sliding velocity of 3 cm/s). The results of the laser-patterned surfaces are compared to the behaviour of polished and serial chain links. Direct laser interference patterning (wavelength of 355 nm and pulse duration of 10 ns) was used to produce homogeneous line- or cross-like patterns with periodicities of 7 and 15 µm as well as a depth of roughly 1 µm. Light microscopy and white light interferometry was utilized to carefully analyse these surfaces and the resulting wear tracks. It could be shown that line-like surface patterns induce a detrimental behaviour regarding the resulting coefficient of friction, whereas cross-like patterns appear to be beneficial in terms of friction and wear reduction. This can be explained by the existence of closed lubrication pockets, which provide a secondary oil effect and build-up an additional hydrodynamic pressure. Furthermore, the findings observed in this work allow for a better understanding of the tribological performance of the serial chain link, mainly induced by a good load-bearing capability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volumes 370â371, 15 January 2017, Pages 51-58
Journal: Wear - Volumes 370â371, 15 January 2017, Pages 51-58
نویسندگان
Andreas Rosenkranz, Frederik Krupp, Leander Reinert, Frank Mücklich, Bernd Sauer,