期刊
SURFACE ENGINEERING
卷 37, 期 5, 页码 658-668出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/02670844.2020.1821572
关键词
Laser surface texturing; grooves; friction; wear
资金
- National Natural Science Foundation of China [U1609209]
- Natural Science Foundation of Zhejiang Province [LZ20E050003, LY20E050027]
Experimental study was conducted on directional friction and wear control by nanosecond pulsed laser selective texturing of grooves on stainless steel and titanium surfaces, showing that optimal groove aspect ratio and orientation angle can reduce friction coefficient and minimize wear for sliding pairs.
The commensurate contact condition plays a key role in the directional friction properties and wear performance when two surfaces slide against each other. An experimental study on bidirectional friction and wear control by nanosecond pulsed laser selective texturing of grooves on AISI 304 stainless steel (SS) and TA2 titanium (Ti) surfaces of the sliding components was proposed. The influence of the aspect ratio (AR) and groove orientation angle on directional friction properties and wear performance was investigated. The AR(2)and 75 degrees samples performed best with 68.13 and 21.71% overall average coefficient of friction reduction for the Ti-Ti and SS-SS interfaces, respectively. The AR(5.5)generated the least wear for the Ti-Ti and SS-SS pairs. The results take us a step closer to deriving a more effective, accurate, and dependable guideline for designing laser-machined surface grooves for directional sliding friction control.
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