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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 12    No. 4    August 2002

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Influence of heat treatment on tribological
behaviors of novel wrought aluminum bronze
ZHANG Wei-wen(张卫文), NGAI Tungwai Leo(倪东惠), XIA Wei(夏  伟),
QIU Cheng(邱  诚),CHEN Wei-ping(陈维平)

College of Mechanical Engineering, South China University of Technology,
Guangzhou 510640, China

Abstract:Influence of heat treatment on mechanical properties and tribological behaviors of Ti and B modified wrought aluminum bronze were studied. The results show that different strength and plasticity combination of the alloy after solution treatment can be obtained by adjusting the ageing temperature. When aged at 450℃, the tensile strength σb, yield strength σ0.2, elongation δ and hardness of the alloy are 1050MPa, 780MPa, 4.5%, HB282, respectively. When aged at 650℃, those of the alloy are 905MPa, 600MPa, 12%, HB232, respectively. Under boundary lubrication condition with pressure above 22.2MPa, alloy with low temperature ageing has the best wear property. However, under the condition involving impact or shock loading, alloy with high temperature ageing is preferable. If the load is not heavy, the alloy under extrusion state is favorable for wear-resisting parts. 

 

Key words: aluminum bronze; heat treatment; tribological behaviors

ISSN 1672-7029
CN 43-1423/U

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