The effects of ultrasonic nanocrystal surface modification temperature on the mechanical properties and fretting wear resistance of Inconel 690 alloy

A review of fretting study on nuclear power equipment

An overview of burst, buckling, durability and corrosion analysis of lightweight FRP composite pipes and their applicability

Effect of oxidation time on the impact wear of micro-arc oxidation coating on aluminum alloy

A numerical simulation of fretting wear profile taking account of the evolution of third body layer

Impact fretting wear behavior of 304 stainless steel thin-walled tubes under low-velocity

Impact fretting wear test of alloy Zr-4 tubes with varied diameter–thickness ratios (D/t ratio) against a GCr15 steel cylinder was performed with a new impact wear testing device at dry room temperature. The deformation behavior, impact energy absorption, and damage of the tested tubes resulting from the influence of diameter, thickness, and impact cycles were investigated. Results showed that under the same tube outer diameter, an increase in the D/t ratio leads to an increase in contact time and a reduction in peak force, energy absorption ratio, and damage degree. Under the same wall thickness, an increase in the D/t ratio leads to reduced contact time, peak force, energy absorption ratio, and depth. The bending section coefficient significantly affects contact stiffness, and wear damage is positively correlated to the bending moment value of the tube. The wear mechanisms of impact fretting wear of alloy Zr-4 tubes are contact fatigue spalling and oxidation.

Influence of diameter–thickness ratio on alloy Zr-4 tube under low-energy impact fretting wear

Impact fretting wear of Inconel 690 tube with different supporting structure under cycling low kinetic energy

In many industrial devices, impact-sliding wear is caused by a variety of complex vibrations between the contacted interfaces. Under actual conditions, impact and sliding motions do not occur in only one direction, and different complex impact-sliding motions exist on the tribology surfaces. In this study, an impact-sliding wear test rig is developed to investigate the wear effect of different complex motions. Using this rig, multi-type impact-sliding wear effects are realized and measured, such as those derived from unidirectional, reciprocating, and multi-mode combination motions. These three types of impact–sliding wear running behavior are tested and the wear damage mechanism is discussed.

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Development of a novel cycling impact–sliding wear rig to investigate the complex friction motion

The impact tests were conducted on metallic materials with different bulk hardness and Young’s moduli. Analysis of the dynamics response during the tribological process showed that the tested materials had similar energy absorption, where the peak contact force increased as the tests continued. Moreover, wear volume decreased with the increase in Young’s modulus of metals, except for Cr with a relatively low hardness. Wear rate was gradually reduced to a steady stage with increasing cycles, which was attributed to the decrease in contact stress and work-hardening effect. The main wear mechanism of impact was characterized by delamination, and the specific surface degradation mechanisms were depending on the mechanical properties of materials. The absorbed energy was used to the propagation of micro-cracks in the subsurface instead of plastic deformation, when resistance of friction wear and plastic behavior was improved. Hence, both the hardness and Young’s modulus played important roles in the impact wear of metallic materials.

Zhi-qiang Chen

Papers

Impact fretting wear behavior of 304 stainless steel thin-walled tubes under low-velocity

Influence of diameter–thickness ratio on alloy Zr-4 tube under low-energy impact fretting wear

Impact fretting wear of Inconel 690 tube with different supporting structure under cycling low kinetic energy

Development of a novel cycling impact–sliding wear rig to investigate the complex friction motion

Low-Velocity Impact Wear Behavior of Ball-to-Flat Contact Under Constant Kinetic Energy