外文题目: Angle-dependent lubricated tribological properties of stainless steel by femtosecond laser surface texturing
作者: Wang, Zhuo; Li, Yang-Bo; Bai, Feng; Wang, Cheng-Wei; Zhao, Quan-Zhong
刊名: Opt. Laser Technol.
年: 2016 卷: 81 页： 60--66
英文关键词:
Femtosecond laser processing; Surface texturing; Lubricated tribological properties; Stainless steel
CUTTING TOOLS; PERFORMANCE; FRICTION; ABLATION; REDUCTION; COATINGS; FILMS; FACE; SEAL
英文摘要:
Lubricated tribological properties of stainless steel were investigated by femtosecond laser surface texturing. Regular-arranged micro-grooved textures with different spacing and micro-groove inclination angles (between micro-groove path and sliding direction) were produced on AISI 304L steel surfaces by an 800 nm femtosecond laser. The spacing of micro-groove was varied from 25 to 300 mu m, and the inclination angles of micro-groove were measured as 90 and 45. The tribological properties of the smooth and textured surfaces with micro-grooves were investigated by reciprocating ball-on-flat tests against Al2O3 ceramic balls under starved oil lubricated conditions. Results showed that the spacing of micro-grooves significantly affected the tribological property. With the increase of micro-groove spacing, the average friction coefficients and wear rates of textured surfaces initially decreased then increased. The tribological performance also depended on the inclination angles of micro-grooves. Among the investigated patterns, the micro-grooves perpendicular to the sliding direction exhibited the lowest average friction coefficient and wear rate to a certain extent. Femtosecond laser-induced surface texturing may remarkably improve friction and wear properties if the micro-grooves were properly distributed. (C) 2016 Elsevier Ltd. All rights reserved.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1016/j.optlastec.2016.01.034


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