A superficial coating to improve oxidation and decarburization resistance of bearing steel at high temperature

2012 ◽  
Vol 258 (11) ◽  
pp. 4977-4982 ◽  
Author(s):  
Xiaojing Wang ◽  
Lianqi Wei ◽  
Xun Zhou ◽  
Xiaomeng Zhang ◽  
Shufeng Ye ◽  
...  
Keyword(s):  
High Temperature ◽  
Bearing Steel ◽  
Superficial Coating

Friction and Wear Properties of α-Al2O3-Coated SiC Particle Reinforced Nickel Matrix Composites Sliding against Bearing Steel

2017 ◽  
Vol 266 ◽  
pp. 155-164
Author(s):  
Chao Feng ◽  
Yi Xie ◽  
Zhong Wu
Keyword(s):  
High Temperature ◽  
Friction And Wear ◽  
Sol Gel ◽  
Bearing Steel ◽  
Wear Behaviour ◽  
Nickel Matrix ◽  
Wear Properties ◽  
Sic Particles ◽  
Friction And Wear Properties ◽  
Sic Composites

In this study, attempt has been made to investigate the effect of SiC particles on the friction and wear properties of Ni/SiC composites manufactured by electrodeposition, especially for the composites with high-temperature treatment.For this purpose, α-Al2O3 was coated on the surfaces of SiC particles by sol-gel technology to inhibit interfacial reaction of SiC and nickel at high temperature. Both of the Ni/α-Al2O3-coated SiC (Ni/CSp) and Ni/uncoated SiC (Ni/UCSp) composites were treated at 600 °C to study the resulting wear behaviour. The results indicated that with heat treatment at 600 °C, the Ni/CSp composite had better tribological properties than the Ni/UCSp composite. It was proved that the uncoated SiC particles have reacted completely with nickel leaving many defects, while the coated SiC particles still remained in the Ni/CSp composite hardening the nickel matrix and supporting the counterpart, thus improving the wear resistance of Ni/CSp composite with relatively low friction coefficient and wear mass loss compared to the Ni/UCSp composite.

Microstructure and Friction Behavior of AISI 52100 and D2 Steels Subjected to Ultrasonic Nanocrystalline Surface Modification (UNSM) Technique at a High Temperature

2016 ◽  
Vol 879 ◽  
pp. 164-168
Author(s):  
Auezhan Amanov ◽  
Jun Hyong Kim ◽  
Young Sik Pyun
Keyword(s):  
Surface Modification ◽  
High Temperature ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Bearing Steel ◽  
Friction Behavior ◽  
Friction And Wear Behavior ◽  
Aisi 52100 ◽  
Before And After ◽  
Dry Conditions

In this study, two different AISI 52100 bearing and D2 tool steels were subjected to ultrasonic nanocrystalline surface modification (UNSM) technique at ambient and high temperature of 500 °C. The objective of this study is to characterize the microstructure and to investigate the effectiveness of UNSM technique on the friction and wear behavior of those steels. The friction and wear behavior of the specimens against AISI52100 bearing steel ball with a diameter of 10 mm was carried out using a micro-tribo tester under dry conditions. The hardness with respect to depth from the top surface was measured using a microhardness. The change in the microstructure of the specimens before and after UNSM treatment was characterized by scanning electron microscopy (SEM). The findings from this preliminary study are expected to be implemented to the bearings and tools to increase the efficiency and performance of the components.

Sign in / Sign up

Export Citation Format

Share Document