Fabrication and electrical sliding wear of graphitic Cu–Cr–Zr matrix composites
-
Yongzhong Zhan
and
Jianmin Zeng
Abstract
The present work was undertaken to prepare graphitic Cu–Cr –Zr matrix composites in order to develop new materials for application under sliding contact in an electrical field. The electrical sliding wear behavior of the graphite (Gr)/CuCrZr composite was investigated from a microstructural viewpoint, compared with the matrix alloy. The results indicate that by using the water atomized Cu–Cr–Zr powder and copper-coated graphite particles as starting materials, compact and homogeneous microstructure can be obtained in the composites. Fine and coherent particulate precipitations are formed in the Cu–Cr–Zr matrix during the aging treatment process, which help to improve the mechanical properties. Under the electrical sliding wear condition, incorporation of graphite in the Cu–Cr–Zr matrix not only decrease the wear loss of the sliding pair but also maintain steady-state friction coefficient. The main reason is that the graphite film that smears on the contacting surfaces can alleviate materials loss induced by electric arc discharge and adhesion wear. Proper aging treatment helps to make full use of the solid lubricant effect of the graphite particles.
The authors gratefully acknowledge financial support provided by the Foundation of Guangxi Education Office (No. 2004-20) and the Guangxi Science Foundation (0542011).
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© 2006 Carl Hanser Verlag, München
Articles in the same Issue
- Contents
- Phase separation in Si–(B)–C–N polymer-derived ceramics
- Solidification curves for commercial Mg alloys obtained from heat-transfer modeled DTA experiments
- Thermodynamic assessment of the Mg–Nd system
- Solid-state reaction in Ni/Si multilayered films, characterized by magneto-optical and optical spectroscopies
- Phase diagram of the Co–Cu–Ti system at 850 °C
- Effects of an electric field applied during the solution heat treatment of the Al–Mg –Si–Cu alloy AA6111 on the subsequent natural aging kinetics and tensile properties
- Fabrication and electrical sliding wear of graphitic Cu–Cr–Zr matrix composites
- Further results on creep behaviour of sand-cast Mg–2.8Nd–0.8Zn–0.5Zr–0.3Gd alloy at 0.56 to 0.61Tm under stresses 40 to 90 MPa
- On the creep resistance in cast Ni-base superalloys
- Formation, stability, and presence of magnesium nitride in magnesium recycling processes
- From waste to high strength alloy – recycling of magnesium chips
- Sigma phase formation and its effect on mechanical properties in the corrosion-resistant superalloy K44
- Personal/Personelles
- Press / Presse
- Contents
- Articles Basic
- Phase separation in Si–(B)–C–N polymer-derived ceramics
- Solidification curves for commercial Mg alloys obtained from heat-transfer modeled DTA experiments
- Thermodynamic assessment of the Mg–Nd system
- Solid-state reaction in Ni/Si multilayered films, characterized by magneto-optical and optical spectroscopies
- Phase diagram of the Co–Cu–Ti system at 850 °C
- Effects of an electric field applied during the solution heat treatment of the Al–Mg –Si–Cu alloy AA6111 on the subsequent natural aging kinetics and tensile properties
- Articles Applied
- Fabrication and electrical sliding wear of graphitic Cu–Cr–Zr matrix composites
- Further results on creep behaviour of sand-cast Mg–2.8Nd–0.8Zn–0.5Zr–0.3Gd alloy at 0.56 to 0.61Tm under stresses 40 to 90 MPa
- On the creep resistance in cast Ni-base superalloys
- Formation, stability, and presence of magnesium nitride in magnesium recycling processes
- From waste to high strength alloy – recycling of magnesium chips
- Sigma phase formation and its effect on mechanical properties in the corrosion-resistant superalloy K44
- Notifications/Mitteilungen
- Personal/Personelles
- Press / Presse
Articles in the same Issue
- Contents
- Phase separation in Si–(B)–C–N polymer-derived ceramics
- Solidification curves for commercial Mg alloys obtained from heat-transfer modeled DTA experiments
- Thermodynamic assessment of the Mg–Nd system
- Solid-state reaction in Ni/Si multilayered films, characterized by magneto-optical and optical spectroscopies
- Phase diagram of the Co–Cu–Ti system at 850 °C
- Effects of an electric field applied during the solution heat treatment of the Al–Mg –Si–Cu alloy AA6111 on the subsequent natural aging kinetics and tensile properties
- Fabrication and electrical sliding wear of graphitic Cu–Cr–Zr matrix composites
- Further results on creep behaviour of sand-cast Mg–2.8Nd–0.8Zn–0.5Zr–0.3Gd alloy at 0.56 to 0.61Tm under stresses 40 to 90 MPa
- On the creep resistance in cast Ni-base superalloys
- Formation, stability, and presence of magnesium nitride in magnesium recycling processes
- From waste to high strength alloy – recycling of magnesium chips
- Sigma phase formation and its effect on mechanical properties in the corrosion-resistant superalloy K44
- Personal/Personelles
- Press / Presse
- Contents
- Articles Basic
- Phase separation in Si–(B)–C–N polymer-derived ceramics
- Solidification curves for commercial Mg alloys obtained from heat-transfer modeled DTA experiments
- Thermodynamic assessment of the Mg–Nd system
- Solid-state reaction in Ni/Si multilayered films, characterized by magneto-optical and optical spectroscopies
- Phase diagram of the Co–Cu–Ti system at 850 °C
- Effects of an electric field applied during the solution heat treatment of the Al–Mg –Si–Cu alloy AA6111 on the subsequent natural aging kinetics and tensile properties
- Articles Applied
- Fabrication and electrical sliding wear of graphitic Cu–Cr–Zr matrix composites
- Further results on creep behaviour of sand-cast Mg–2.8Nd–0.8Zn–0.5Zr–0.3Gd alloy at 0.56 to 0.61Tm under stresses 40 to 90 MPa
- On the creep resistance in cast Ni-base superalloys
- Formation, stability, and presence of magnesium nitride in magnesium recycling processes
- From waste to high strength alloy – recycling of magnesium chips
- Sigma phase formation and its effect on mechanical properties in the corrosion-resistant superalloy K44
- Notifications/Mitteilungen
- Personal/Personelles
- Press / Presse
