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Subsurface damage pattern and formation mechanism of monocrystalline -GaO in grinding process

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0677-3

Abstract: However, the deformation mechanism in ultraprecision machining has not yet been revealed.The aim of this study is to investigate the damage pattern and formation mechanism of monocrystallineTransmission electron microscopy was used to observe the subsurface damage in rough, fine, and ultrafine, revealing the mechanism of the mechanical effect of grits on the damage pattern.The formation of nanocrystals and amorphous phase was related to the grinding conditions and material

Keywords： monocrystalline beta-phase gallium oxide     grinding process     subsurface damage     nanocrystals     amorphous    

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Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0680-8

Abstract: As undesirable results and challenging breakthroughs, the surface damage and integrity of these materialsThis review summarizes an up-to-date progress of the damage formation mechanisms and suppression strategiesFirst, the formation mechanisms of milling damage, including delamination, burr, and tear, are analyzedSecond, the grinding mechanisms, covering material removal mechanism, thermal mechanical behavior, surfaceintegrity, and damage, are discussed.

Keywords： milling     grinding     fiber-reinforced composites     damage formation mechanism     delamination     material removalmechanism     surface integrity     minimum quantity lubrication    

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Formation mechanism and modeling of surface waviness in incremental sheet forming

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0679-1

Abstract: surface quality has always been a challenge for incremental sheet forming (ISF), whereas the generation mechanismIn this paper, the formation mechanism and the prediction of waviness are both investigated through experimentsengineering application, a theoretical model for waviness height is proposed based on the generation mechanismThis work is favorable for the perfection of formation mechanism and control of surface quality in ISF

Keywords： surface waviness     incremental sheet forming     numerical simulation     formation mechanism     deformation history    

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The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 265-269 doi: 10.1007/s11465-014-0311-0

Abstract: The paper presents a method of theoretical analysis in order to explicate the formation mechanism ofAnd these influences are explained from the perspective of formation mechanism of residual stress in

Keywords： residual stress     analytical model     strain     plastic     cutting parameter    

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Reduced kinetic mechanism of -heptane oxidation in modeling polycyclic aromatic hydrocarbon formation

ZHONG Beijing, XI Jun

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 326-332 doi: 10.1007/s11708-008-0047-9

Abstract: A reduced mechanism, which could couple with the multidimensional computational fluid dynamics code forof a reacting flow, was developed for chemical kinetic modeling of polycyclic aromatic hydrocarbon formationmechanism that includes only 83 reactions and 56 species through sensitivity analysis.mechanism, which demonstrate that the model based on this reduced mechanism can properly describe -heptanequantitatively predict polycyclic aromatic hydrocarbon (such as benzene, naphthalene, phenanthrene and pyrene) formation

Keywords： phenanthrene     multidimensional computational     sensitivity analysis     polycyclic     mechanism    

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Influence of construction-induced damage on the degradation of freeze–thawed lightweight cellular concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 781-792 doi: 10.1007/s11709-021-0733-9

Abstract: During the construction of lightweight cellular concrete (LCC), material damage frequently occurs, causingThe construction-induced damage can be more significant than those from the service environment of LCCmethod established to simulate the damage in the laboratory setting.The damage evolution is provided with the rationality of the damage equation, verified by comparing themeasured and predicted damage variables.

Keywords： lightweight cellular concrete     construction-induced damage     freeze-thaw action     microstructure     degradationmechanism    

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Impact and inhibitory mechanism of phenolic compounds on the formation of toxic Maillard reaction products

Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 3,   Pages 321-329 doi: 10.15302/J-FASE-2017182

Abstract: dominant reactions occurring during thermal treatment of food, the Maillard reaction not only leads to the formationof aroma, browning color and taste compounds, but also contributes to the formation of some unpleasantIn this review, some recent studies on the impact of dietary polyphenols on the formation of acrylamidepolyphenols not only scavenge free radicals, but also react with reactive carbonyl species, thus lowering the formationsafety, and suggests some directions for further study of natural products as inhibitors against the formation

Keywords： advanced glycation end products     acrylamide     food safety     heterocyclic amine     Maillard reaction     polyphenols    

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Study of the Damage Mechanism of the Cooling Pipe in Liquid Zinc

Yuan Wangjiao,He Jiangsan

Strategic Study of CAE 2005, Volume 7, Issue 9,   Pages 56-60

Abstract: The damage of the cooling pipe in liquid zinc is caused by high temperature corrosion and stress corrosion

Keywords： liquid zinc     cooling pipe     damage mechanism     high temperature corrosion     stress corrosion    

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Damage mechanism and evaluation model of compressor impeller remanufacturing blanks: A review

Haiyang LU, Yanle LI, Fangyi LI, Xingyi ZHANG, Chuanwei ZHANG, Jiyu DU, Zhen LI, Xueju RAN, Jianfeng LI, Weiqiang WANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 402-411 doi: 10.1007/s11465-019-0548-8

Abstract: The theoretical and technological achievements in the damage mechanism and evaluation model obtainedThe mechanism and evaluation model of ultra-high cycle fatigue, erosion wear, and corrosion damage wereFor ultra-high cycle fatigue damage, the characteristics of ultra-high cycle fatigue of the impellerFor corrosion damage, the electrochemical and stress corrosion behaviors of the impeller material andThrough this research, the key scientific problems of the damage behavior and mechanism of remanufacturing

Keywords： remanufacturing     centrifugal compressor impeller     remanufacturing blank     damage mechanism     evaluation model    

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Analysis on the technological innovation network formation and operation mechanism for the significant

Wang Mengjun,Zhang Zhensen

Strategic Study of CAE 2011, Volume 13, Issue 8,   Pages 62-66

Abstract: And the dynamic mechanism, the collaborative mechanism and the learning mechanism are discussed,which

Keywords： significant construction project     technological innovation network     formation mechanism     operation mechanism    

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Mechanism insight into the formation of HS from thiophene pyrolysis: A theoretical study

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1404-8

Abstract:

• Possible formation pathways of H2S were revealed in thiophene

Keywords： Density functional theory     Waste rubber     Thiophene     H2S     Pyrolysis    

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Atomistic understanding of interfacial processing mechanism of silicon in water environment: A ReaxFF

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 570-579 doi: 10.1007/s11465-021-0642-6

Abstract: interfacial process between silicon and amorphous silica in water environment, exploring the removal and damagemechanism caused by pressure, velocity, and humidity.passivation layer could alleviate the contact between the abrasive and the substrate, thus reducing the damagemultibridge bonds and chain removal appear under high pressure, which cause higher removal rate and severer damageThese results reveal the internal cause of the discrepancy in damage and removal rate under different

Keywords： silicon     ReaxFF     molecular dynamics     friction     damage    

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Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 248-257 doi: 10.1007/s11705-019-1853-9

Abstract: Hierarchical ZSM-5 zeolite with radial mesopores is controllably synthesized using piperidine in a NaOH solution. The piperidine molecules enter the zeolite micropores and protect the zeolite framework from extensive desilication. The areas containing fewer aluminum atoms contain fewer piperidine protectant molecules and so they dissolve first. Small amounts of mesopores are then gradually generated in areas with more aluminum atoms and more piperidine protectant. In this manner, radial mesopores are formed in the ZSM-5 zeolite with a maximal preservation of the micropores and active sites. The optimal hierarchical ZSM-5 zeolite, prepared with a molar ratio of piperidine to zeolite of 0.03, had a mesopore surface area of 136 m ·g and a solid yield of 80%. The incorporation of the radial mesopores results in micropores that are interconnected which shortened the average diffusion path length. Compared to the parent zeolite, the hierarchical ZSM-5 zeolite possesses more accessible acid sites and has a higher catalytic activity and a longer lifetime for the alkylation of benzene.

Keywords： hierarchical ZSM-5 zeolite     protective desilication     piperidine     radial mesopores     benzene alkylation    

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Mechanism of hepatocellular damage in rat caused by low serum selenium

LU Yi, QU Bo, LIU Chang, YU Liang, Liu Xuemin, WANG Haohua, JIANG An, ZHANG Xiaogang

Frontiers of Medicine 2008, Volume 2, Issue 3,   Pages 255-258 doi: 10.1007/s11684-008-0048-4

Abstract: The aim of this paper is to investigate the mechanism of hepatocellular damage in rats caused by lowIt indicated that the damage caused by selenium deficiency was through the process of oxidation.Selenium deficiency led to apoptosis of hepatocytes where oxidative damage to mitochondria might be the

Keywords： process     glutathione peroxidase     hepatocellular damage     group     Keshan Disease    

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Review of the damage mechanism in wind turbine gearbox bearings under rolling contact fatigue

Yun-Shuai SU, Shu-Rong YU, Shu-Xin LI, Yan-Ni HE

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 434-441 doi: 10.1007/s11465-018-0474-1

Abstract: contact fatigue (RCF) and they are observed to fail due to axial cracking, surface flaking, and the formationThe underlying dominant mechanisms were discussed with emphasis on the formation mechanism of WEAs.Although numerous studies have been carried out, the formation of WEAs remains unclear.The prevailing mechanism of the rubbing of crack faces that generates WEAs was questioned by the authorsmechanism.

Keywords： rolling contact fatigue (RCF)     white etching area (WEA)     white etching crack (WEC)     adiabatic shear band (ASB)    

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Title Author Date Type Operation

Subsurface damage pattern and formation mechanism of monocrystalline -GaO in grinding process

Journal Article

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Journal Article

Formation mechanism and modeling of surface waviness in incremental sheet forming

Journal Article

The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Journal Article

Reduced kinetic mechanism of -heptane oxidation in modeling polycyclic aromatic hydrocarbon formation

ZHONG Beijing, XI Jun

Journal Article

Influence of construction-induced damage on the degradation of freeze–thawed lightweight cellular concrete

Journal Article

Impact and inhibitory mechanism of phenolic compounds on the formation of toxic Maillard reaction products

Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG

Journal Article

Study of the Damage Mechanism of the Cooling Pipe in Liquid Zinc

Yuan Wangjiao,He Jiangsan

Journal Article

Damage mechanism and evaluation model of compressor impeller remanufacturing blanks: A review

Haiyang LU, Yanle LI, Fangyi LI, Xingyi ZHANG, Chuanwei ZHANG, Jiyu DU, Zhen LI, Xueju RAN, Jianfeng LI, Weiqiang WANG

Journal Article

Analysis on the technological innovation network formation and operation mechanism for the significant

Wang Mengjun,Zhang Zhensen

Journal Article

Mechanism insight into the formation of HS from thiophene pyrolysis: A theoretical study

Journal Article

Atomistic understanding of interfacial processing mechanism of silicon in water environment: A ReaxFF

Journal Article

Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Journal Article

Mechanism of hepatocellular damage in rat caused by low serum selenium

LU Yi, QU Bo, LIU Chang, YU Liang, Liu Xuemin, WANG Haohua, JIANG An, ZHANG Xiaogang

Journal Article

Review of the damage mechanism in wind turbine gearbox bearings under rolling contact fatigue

Yun-Shuai SU, Shu-Rong YU, Shu-Xin LI, Yan-Ni HE

Journal Article