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and mechanically mixed layer formation during worn surfaces analysis. Key words: functional graded materials; centrifuge casting; adhesive wear; Taguchi; tribology Cite this article as: N. RADHIKA, Manu... (Figure 3) higher concentration of well distributed reinforcement particles (light phase) over the copper matrix (dark phase). Figure 3 Microstructure observed at inner periphery 4 Adhesive wear......
University, Changsha 410083, China) Abstract: An adhesive bonding technology of NiFe2O4/Cu cermet and 45# steel was investigated using aluminum chromium phosphate as binder, CuO as curing agents and NiFe2O4 ceramic powder and Cu-Ag powder as fillers. Strength of bonded joint, microstructure of bonding interface and phase composition of the adhesive layers were characterized. The effects of binders......
under the same cutting condition. The wear forms of both ceramic tools are crater and flank, and the wear mechanisms are mainly adhesive wear and abrasive wear. Key words: micro/nano composite; ceramic tool; 40CrNiMo; cutting performance; adhesive wear 陶瓷刀具由于其独特的性能,在切削难加工材料方面显示出强大的优势.但陶瓷刀具材料硬脆性导致的低可靠性影响着陶瓷刀具的推广应用,高强度,高硬度和高韧性等一直是陶瓷刀具材料研究者追求的目标[1-3].在微米粉体中加入适量纳米粉体,配以合理制备工艺,可获得较高力学性能的微纳米复合陶瓷刀具材料[4-5......
) by hot-filament-assisted chemical vapor deposition (HFCVD). The morphology and quality of the diamond films were evaluated by SEM, AFM and Raman spectroscopy, respectively. The adhesive strength.... Key words: diamond film; titanium alloy; adhesive strength; tribological behavior; corrosion resistance 植入义齿已经成为目前最有效的修复牙列缺损及缺失的方法[1].然而,由于种植义齿部件多,结构复杂,临床上易产生意外及并发症[2-3],其中,最常见的并发症是部件松动,尤其是螺钉松动,据报道,其发病......
protection, which provides the possibility for application of industrialized production. Key words: electroless plating; Ni-P/Ni-W-P duplex coating; laser treatment; adhesive wear; nanocrystallization 1... deposit depends on the attractive force that operates between the nickel atoms from the coating and iron atoms from the counter steel ball (hardened high carbon-high chromium steel). Adhesive wear......
attributed to the tribochemical products of the reaction between nitrogen and phosphorus additives on the surface of the metal. The wear mechanisms of copper foil and roll contain adhesive,plowing,peeling and others,in which adhesive wear plays a leading role. Ω is better to solve the problem of friction and wear during rolling instead of the four-ball test results.Key words:copper foil; additive......
with conductive adhesive electrical measurement method was applied to measuring the THM coupling crack propagation rate of brittle rock continuously. Research results show that both calculation... of THM coupling crack initiation rate. Key words: crack initiation rate; thermal-hydro-mechanical coupling test; conductive adhesive electrical method; fracture mechanism; brittle rock 1 Introduction......
surfaces of all the Ti-15Mo-xNb alloys under different loads. The friction coefficient of the Ti-15Mo-5Nb alloy under 1 N is the lowest. The wear principal mechanism for Ti-15Mo-xNb alloys is adhesive wear. Key words: β-type Ti-Mo-Nb alloys; wear resistance; adhesive wear; microstructure; mechanical properties 1 Introduction Due to their many advantageous properties, the application......
复合材料胶接修补参数优化研究 万小朋1,赵美英1,李小刚1 (1.西北工业大学航空学院,陕西西安,710072) 摘要:针对复合材料层合板穿透性损伤,采用圆形复合材料补片胶接修补方式,对影响胶接修补效率的多个因素进行分析计算.修补结构采用"双板-胶元"模型,有限元分析运用NASTRAN软件.所得结论对工程设计有一定的实用价值. 关键词:复合材料; 胶接修理; 有限元; composite materials; adhesive bonding repair; finite element; [全文内容正在添加中] ......
on ZK60 and ME20 alloys was investigated. The results indicated that differences in the alloy compositions significantly influenced the initial deposition process and the adhesive strength, corrosion... activation rather than on the precipitates. Owing to differences in the initial deposition process, the coating on ZK60 alloy had higher adhesive strength and better corrosion resistance than that on ME20......
