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Wear Behavior and Mechanism of a Sliding Pair of 0.1C-3Cr-2W-V Nitrided Steel Rubbing against an aluminum bronze Alloy

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Journal of Iron and Steel Research International 2016年第3期23卷 281-288页

作者： Guang-hong WANG Sheng-guan QU Zhi-hua XIONG Fu-qiang LAI Xiao-qiang LI Mao-sheng YANG School of Mechanical and Automotive Engineering South China University of Technology Institute of Special Steel Central Iron and Steel Research Institute

Wear behavior and mechanism of plasma nitrided steel oscillating against a heat-treated and an untreated aluminum bronze alloy were investigated using an Optimol SRV *** influence of heat treatment on the mechanical properties of the alloy was ***,the wear debris was also examined to understand the wear *** results show that a 220-230μm nitrided layer,which was harder than the substrate,was obtained on the steel *** tensile strength and hardness of the alloy are found to be significantly improved by the heat treatment associated with low impact *** heat treatment of the alloy did not obviously decrease the friction coefficient of the nitrided steel-bronze ***,the wear loss of the nitrided steel increased when it mated with the treated bronze by a severe three-body *** nitrided steel was mainly damaged by fatigue *** plane contact conditions,the wear debris was mainly generated from the bronze part and can escape from the interface before being oxidized,leading to the phase structure of all the debris being copper rather than copper oxides.

关键词： steel plasma nitriding aluminum bronze sliding wear three-body abrasion

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Effect of Deformation on Phase Transformation of α+γ2→β in aluminum bronze

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Journal of Rare Earths 2006年第S2期 266-268页

作者：宋伟杨景茹阎丽娟 College of Mathematics and Physics Yanshan University 2. Department of Information and Mecharonics Engineering Hebei Building Material College of Professional Technology 3. School of Safety and Resource Engineering China University of Mining & Technology(Beijing)

The phase transformation kinetics of α+γ2→β in aluminum bronze under different condition were studied by DSC, and the effect of deformation on the phase transformation of α+γ2→β in aluminum bronze was discussed. The results show that the transformation temperature, transformation time and transformation activation energy of α+γ2→β in aluminum bronze can be decreased through deformation. As a result, the deformation can accelerate the phase transformation of α+γ2→β.

关键词： aluminum bronze phase transformation transformation rare earths

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Research of Tribological Behaviors of a New aluminum bronze

Research of Tribological Behaviors of a New Aluminum Bronze

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14～(th) Congress of International Federation for Heat Treament and Surface Engineering

作者： XU Jian-lin, WANG Zhi-ping, CHEN Chao1. State Key Lab of Gansu New Non-ferrous Metal Materials, Lanzhou University of Science and Technology, Lanzhou, China 2. College of Mechanic-Electronic Engineering, Lanzhou University of Science and Technology, Lanzhou, China

＜正＞ The tribological behaviors were investigated in a new high strength and wear resistant aluminum bronze, with its friction coefficient and wear-rate lower than those of ZQA19-4 and ZQA110-4-4 alloys in terms of Chinese national standard. The results showed that different tribological behaviors were attributed material itself. Under boundary lubrication condition, major wear mechanisms of aluminum bronze are adhesive wear and attrition wear. Its wearability depends mainly on material microstructure, shedding hard-particles, rakes and small pits that can store lubricant. The new aluminum bronze may find wide application in high sliding speed, heavy load and boundary lubrication condition.

关键词： aluminum bronze tribological behaviors

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Preparation of aluminum bronze rotating band for large caliber projectiles by high velocity arc spraying

Preparation of aluminum bronze rotating band for large calib...

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第十一届全国摩擦学大会

作者： Bin Wu Xiao-lei Chen Zhi-qiang Zou Ling-hui Fang Xu-hua Yu Jing Zheng Army Officer Academy

In this paper,aluminum bronze coatings were fabricated by high velocity arc spraying(HVAS) *** and microharhness of the prepared coatings were ***-on-disc dry sliding wear tests were conducted in an ambient condition to examine the tribological behavior of the ***-static engraving processes of rotating bands made of as-sprayed aluminum bronze coating and bulk copper were studied by using rate-controlled push test methodology on an MTS 810 Material Testing *** results show that the as-sprayed aluminum bronze coatings have dense microstructure with porosity of about 1.6 %.Meanwhile,the as-sprayed coating presents a higher microhardness than pure *** friction coefficient of coatings is about 0.2-0.3 in steady *** mechanisms of the as-sprayed coatings were *** engraving test results show that aluminum bronze rotating band presents high bonding strength and good *** HVAS aluminum bronze coating should be a possible substitution for the state of the art copper rotating band.

关键词： aluminum bronze Rotating band Large caliber projectile High velocity arc spraying

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Effects of Ce in novel bronze and its plasma sprayed coating

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Transactions of Nonferrous Metals Society of China 2012年第9期22卷 2139-2145页

作者：李文生刘毅王智平马超王顺才兰州理工大学材料科学与工程学院有色金属新材料国家重点实验室中国兰州730050 南安普顿大学工程学院国家先进摩擦学中心南安普顿SO171BJ英国

A novel aluminum bronze over the Cu-Al binary alloy eutectoid Cu-14Al-4.5Fe was prepared by a jointly-charging one-melting technique and conventional sand casting. The bronze coatings were atmospherically plasma sprayed on the 45# medium carbon steel substrate. The effect of rare earth Ce on the microstructures and Vickers hardness of the cast alloy and coatings were characterized by scanning electron microscopy, X-ray diffraction, electronic probe microanalysis, transmission electron microscopy and microhardness measurements. The results indicate that the hardness of both as-cast alloy and coating are enhanced by the addition of 0.6% Ce due to the refinement of κ phases which are well distributed in the matrix. The rapid solidification in the plasma spray processing retains Fe-supersaturated in the Al-bronze alloy coatings, which avoids the formation of eutectoid （α＋γ2） phase and stacking faults are found in the coatings with Ce added, accordingly improves the mechanical properties.

关键词： rare earth Ce aluminum bronze plasma spraying coating

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