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Mechanical properties of vanadium-alloyed austempered ductile iron for crankshaft applications
《机械工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11465-023-0746-2
关键词: austempered ductile iron (ADI) vanadium alloying mechanical properties crankshafts retained austenite
Experimental research on ductile fracture criterion in metal forming
Song YU, Weiming FENG
《机械工程前沿(英文)》 2011年 第6卷 第3期 页码 308-311 doi: 10.1007/s11465-011-0233-z
Ductile fracture criterion is key limitation parameter in material forming. Accuracy predicting surface and internal failure in plastic deformation process affects on the technology design of workpiece and die greatly. Tension, compression, torsion and shearing test on 45# steel are utilized for providing the experimental values of the critical values at fracture, and 11 widely used ductile fracture criterion are selected to simulate the physical experiments and their relative accuracy for predicting and quantifying fracture initiation sites are investigated. The comparing results show that metal forming process under high triaxiality can be estimated successively using both Normalized Cockcroft-latham and the Brozzo ductile fracture criteria, but the Ayada and general Rice-Tracey model work very well for the low triaxiality cases.
关键词: ductile fracture criteria metal forming process material experiment stress triaxiality
A review on ductile mode cutting of brittle materials
Elijah Kwabena ANTWI, Kui LIU, Hao WANG
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 251-263 doi: 10.1007/s11465-018-0504-z
Brittle materials have been widely employed for industrial applications due to their excellent mecha-nical, optical, physical and chemical properties. But obtaining smooth and damage-free surface on brittle materials by traditional machining methods like grinding, lapping and polishing is very costly and extremely time consuming. Ductile mode cutting is a very promising way to achieve high quality and crack-free surfaces of brittle materials. Thus the study of ductile mode cutting of brittle materials has been attracting more and more efforts. This paper provides an overview of ductile mode cutting of brittle materials including ductile nature and plasticity of brittle materials, cutting mechanism, cutting characteristics, molecular dynamic simulation, critical undeformed chip thickness, brittle-ductile transition, subsurface damage, as well as a detailed discussion of ductile mode cutting enhancement. It is believed that ductile mode cutting of brittle materials could be achieved when both crack-free and no subsurface damage are obtained simultaneously.
关键词: ductile mode cutting brittle materials critical undeformed chip thickness brittle-ductile transition subsurface damage molecular dynamic simulation
Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 217-223 doi: 10.1007/s11709-012-0169-3
关键词: residual stress ductile crack growth resistance complete Gurson model eigenstrain method
Ductile extension of 3-D external circumferential cracks in pipe structures
Wuchao YANG, Xudong QIAN
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 294-303 doi: 10.1007/s11709-011-0115-9
关键词:
ductile fracture
computational cell method
G-T model
Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel
ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai
《机械工程前沿(英文)》 2007年 第2卷 第3期 页码 350-355 doi: 10.1007/s11465-007-0061-3
关键词: ELID peripheral electrolytic in-process nickel-electroplated monolayer measurement
《医学前沿(英文)》 doi: 10.1007/s11684-023-1001-2
关键词: iron deficiency anemia intravenous iron ferric carboxymaltose iron sucrose Hb response early response
Mohammad Reza AZADI KAKAVAND, Reza ALLAHVIRDIZADEH
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1251-1270 doi: 10.1007/s11709-019-0554-2
关键词: flexural-shear-axial failure drift capacity reinforced concrete columns statistical analysis fragility curves
《环境科学与工程前沿(英文)》 2022年 第16卷 第6期 doi: 10.1007/s11783-021-1506-3
• The early corrosion process in the cast iron pipes was investigated.
关键词: Cast iron pipe corrosion Drinking water distribution systems Chlorine disinfection Iron-oxidizing bacteria Coupling effects
Performance of iron-air battery with iron nanoparticle-encapsulated C–N composite electrode
《能源前沿(英文)》 doi: 10.1007/s11708-023-0913-5
关键词: energy storage and conversion metallic composites nanocomposites iron-air battery iron anode
Redox reactions of iron and manganese oxides in complex systems
Jianzhi Huang, Huichun Zhang
《环境科学与工程前沿(英文)》 2020年 第14卷 第5期 doi: 10.1007/s11783-020-1255-8
关键词: Iron oxides manganese oxides reduction oxidation complex systems reaction kinetics and mechanisms
《环境科学与工程前沿(英文)》 2021年 第15卷 第4期 doi: 10.1007/s11783-020-1358-2
• Microbes enhance denitrification under varying DO concentrations and SIF dosages.
关键词: Scrap iron filing Nitrate removal Phosphate removal Mixed culture denitrification Zero valent iron
Highly selective and green recovery of lithium ions from lithium iron phosphate powders with ozone
《化学科学与工程前沿(英文)》 2023年 第17卷 第6期 页码 749-758 doi: 10.1007/s11705-022-2261-0
关键词: lithium iron phosphate powder stoichiometric number selective leaching lithium recovery
Synthesis of iron(II) complexes with asymmetric N
Wolfgang Bauer, Tanja Ossiander, Birgit Weber
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 400-408 doi: 10.1007/s11705-018-1753-4
The synthesis of new Schiff base-like ligands with asymmetric substituents pattern and their iron complexes with pyridine as axial ligand is described. Two of the ligands and one of the iron(II) complexes were characterized by single crystal X-ray structure analysis. One of the the iron(II) complexes shows spin crossover behavior while the others remain in the high spin state. The influence of the reduced symmetry of the ligand on the properties of the complexes is discussed.
关键词: iron Schiff base-like ligands magnetism spin crossover X-ray structures
Methanol to propylene: the effect of iridium and iron incorporation on the HZSM-5 catalyst
Alireza MOHAMMADREZAEI, Sadegh PAPARI, Mousa ASADI, Abas NADERIFAR, Reza GOLHOSSEINI
《化学科学与工程前沿(英文)》 2012年 第6卷 第3期 页码 253-258 doi: 10.1007/s11705-012-0902-4
标题 作者 时间 类型 操作
Influence of welding residual stresses on the ductile crack growth resistance of circumferentially cracked
Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG
期刊论文
Ductile extension of 3-D external circumferential cracks in pipe structures
Wuchao YANG, Xudong QIAN
期刊论文
Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel
ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai
期刊论文
randomized, controlled, open label non-inferiority trial of intravenous ferric carboxymaltose versus ironsucrose in patients with iron deficiency anemia in China
期刊论文
Enhanced empirical models for predicting the drift capacity of less ductile RC columns with flexural,
Mohammad Reza AZADI KAKAVAND, Reza ALLAHVIRDIZADEH
期刊论文
Synergistic effects of sodium hypochlorite disinfection and iron-oxidizing bacteria on early corrosionin cast iron pipes
期刊论文
Scrap Iron Filings assisted nitrate and phosphate removal in low C/N waters using mixed microbial culture
期刊论文
Highly selective and green recovery of lithium ions from lithium iron phosphate powders with ozone
期刊论文
Synthesis of iron(II) complexes with asymmetric N
Wolfgang Bauer, Tanja Ossiander, Birgit Weber
期刊论文