NDLI: Effects of Unreacted Ti Particles on the Dry Sliding Tribological Behavior of Squeeze-Cast (SiCp + Ti)/7075Al Hybrid Composites Under Different Applied Loads

Content Provider	Springer Nature Link
Author	Liu, Yixiong Zheng, Zhenxing Yang, Chao Zhu, Dezhi Chen, Weiping
Copyright Year	2017
Abstract	The effects of Ti particles on the dry sliding tribological behavior of squeeze-cast (SiCp + Ti)/7075Al hybrid composites were investigated. The incorporated Ti particles exerted significant influence on the tribological behavior of the composites except for the wear mechanism. Ti particles could hinder the crack of SiC particles on the contact surface of the composites, which made the composites show an obvious break-in stage at the beginning of the test. The friction coefficient showed varied amplitude and wave fluctuation trends due to the interactions among the debris, the composite and the counterpart without the influence of Ti particles. Moreover, the incorporated Ti particles exerted different effects on the wear resistance of the composites under different applied loads. Ti particles, which could hinder the fracture of SiC particles and the formation and propagation of the cracks in the subsurface deformation, improved the wear resistance of the composites under low applied load. The interfacial stresses in the vicinity of Ti particles increased sharply due to the different strains between the matrix and Ti particles under high applied load, which eventually invalidated the strengthening effects of the Ti particles. Finally, the wear resistance of the composites was deteriorated with the increase in applied load.
Starting Page	1
Ending Page	9
Page Count	9
File Format	PDF
ISSN	10238883
Journal	Tribology Letters
Volume Number	65
Issue Number	2
e-ISSN	15732711
Language	English
Publisher	Springer US
Publisher Date	2017-02-09
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Composite materials Squeeze casting Tribological behavior Wear Microstructure Tribology, Corrosion and Coatings Surfaces and Interfaces, Thin Films Theoretical and Applied Mechanics Physical Chemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Mechanics of Materials Mechanical Engineering Surfaces and Interfaces

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