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题名:
Tribological properties of two kinds of rare earth complexes as lubricant additives for laser cladding coatings
作者: Zhang HB(张浩波)1,2,3; Xia YQ(夏延秋)1; Liu ZL(刘志鲁)1; Zhao, Jun2
所属部门: 固体润滑国家重点实验室
所属课题: 空间润滑材料组
通讯作者: 夏延秋
学科分类: 材料科学与物理化学
关键词: Steel ; Friction ; Wear resistance ; Rare earth complex ; Additives
刊名: Industrial Lubrication and Tribology
DOI: 10.1108/00368791211196862
ISSN号: 0036-8792
发表日期: 2012
卷: 64, 期:1, 页:23-32
收录类别: SCI
英文摘要: Purpose The purpose of this paper is to test two kinds of rare earth complexes of Lanthanum Dialkyldithiophosphate (LaDDP) and Lanthanum Dialkylphosphate (LaDP) as lubricant additives in liquid paraffin for the untreated 60Si2Mn steel and laser‐cladding Ni35A coating on 60Si2Mn steel sliding pairs which are a potential substitute for Zinc Dialkldithiophosphate (ZnDDP).
Design/methodology/approach Tribological properties were evaluated by an Optimol‐SRV oscillating friction and wear test. The morphologies of the worn surfaces were observed by a scanning electron microscope (SEM), and the chemical states of several typical elements on the worn surfaces were examined by means of X‐ray photoelectron spectroscopy (XPS).
Findings Treated laser cladding coatings of steel can improve its hardness and strength and the coated steel possess higher load‐carrying capacity than that of 60Si2Mn; The rare earth complexes of LaDDP and LaDP possess good oil‐solubility, friction‐reducing and wear resistance properties. Those rare earth complexes as additives in liquid paraffin during the friction process can form a protective film containing rare earth oxide, sulfate and sulfur‐containing compound during the friction process.
Research limitations/implications The paper presents two kinds of potentially useful, environmentally‐friendly and highly efficient substitutes for the ZnDDP additives in lubricants.
Practical implications Owing to their good friction‐reducing and wear resistance properties, LaDDP and LaDP are two optimum and promising industry lubrication additives.
Originality/value This work is a new application of rare earth complex as lubricant additive in liquid paraffin, which provides a new direction for designing friction pairs and lubricant additive. The tribology experiments have been carried out through the variation of experiment conditions.
资助者: "Hundreds Talent Program" of CAS;the "973" Program (2007CB607601);NSFC (50421502;50405040)
语种: 英语
影响因子: 0.402
兰州化物所论文排名: 第一作者单位
WOS记录号: WOS:000301698600004
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.licp.ac.cn/handle/362003/19320
Appears in Collections:固体润滑国家重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Gansu Agr Univ, Coll Sci, Lanzhou, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China

Recommended Citation:
Zhang HB,Xia YQ,Liu ZL,et al. Tribological properties of two kinds of rare earth complexes as lubricant additives for laser cladding coatings[J]. Industrial Lubrication and Tribology,2012-01-01,64(1):23-32.
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