ugg stivali Electrochemical methods of high-sulfur

Electrochemical methods of high-sulfur cast iron desulfurization

ianJournalofMetallurgy, 1999,[link widoczny dla zalogowanych],28 (6): 249 ~ 253. Language: English Abstract: The design and development of a set of electrochemical test device,, ql to study laboratory-scale iron desulfurization process of molten iron of applied current, the results show that the applied current and voltage may accelerate the rate of desulfurization. Title: ductile iron parts of the endurance limit based on natural defects in the design of: MarquisGary, RabbRoger, SiivonenLaura Source: ASTMSpecialTechnicalPublicaton, 2000,1372:411 ~ 426. Language: English Abstract: The cast iron is widely used in generator sets and diesel engines with a large ocean-going ship. The current trend is to bear the fatigue loading of key parts replaced with ductile cast iron. To take full advantage of the advantages of high fatigue strength of ductile iron, and to ensure the reliability of the design must be typical of these large casting defects and the defects on the fatigue limit have a better understanding of the impact. Convergence tests, including constant vibration of axial loading, constant amplitude torsion and simple variable amplitude loading,, ql statistical methods for many different thickness of the casting defects were assessed, based on the actual bearing area, including the hardness and the fracture mechanism and other parameters, including model agree well with the fatigue test results. For a ferrite pearlite ductile iron, ductile pearlite hardness has also been applied to this model, the model also established a limit and reverse the lasting connection between the tensile endurance limit. With the Hive and the endurance limit chart shows the average stress between the equations. Title: Plasma spraying Alz0,[link widoczny dla zalogowanych], coating wear in the harsh conditions of the tribological behavior: PantelisDI, PsyllakiP, AlexopoulosN. Source: Wear, 2000,237 (2) :197-204. Language: English Abstract: The plasma-T-sprayed coatings are widely used Al0 improve the wear resistance of many metallic matrix,[link widoczny dla zalogowanych], but the specific plasma spraying a number of organizations (layered micro-cracks, incomplete fusion particles, combined with the interface strength is not enough, porosity) affect the mechanical properties of the coating, and further affect their tribological behavior. In this study, based on the use of ductile iron used in the atmospheric plasma spray preparation 450m thick A1: O, coating, and studied the wear behavior. Wear test conditions are very harsh (normal force 3 ~ 5o-160N,[link widoczny dla zalogowanych], sliding speed of 140m �� s a relative humidity of 60%). Pair is used after quenching I) 2 tool steel. Discussion of the ceramic coating microstructure on the friction coefficient and wear coefficient, wear mechanism is also discussed. Title: flake graphite, and vermicular graphite cast iron, the relationship between dynamic and static toughness of: HsuCheng-Hsun, LeeShen-Chih, ShyYih-Hsun, ChiouWei-Tang. Source: MaterialsScienceandEngineeringA: StucturalMaterials: Properties, MicrostructureandProcessing, 2000,28 (1): 115 ~ 122. Language: English Summary: Those who do not happen too much broken up the rear of gray cast iron and plastic deformation of compacted graphite iron into brittle materials are provided in these materials, fracture toughness test on the pre-fatigue crack Kc is a very difficult task. Fracture toughness Kc and contrast this static and dynamic impact toughness of these problems do not exist. Because the stress-strain brittle relations between the material is linear and the actual impact of brittle materials do not shear lip fracture smoother,[link widoczny dla zalogowanych], these are to meet the test of linear elastic fracture toughness Kc requirements. Able to find the toughness of brittle materials that the linear relationship between the two is a very interesting thing. Respectively, gray iron and compacted graphite cast iron of the annealing, normalizing, austempering, change the matrix in order to obtain different static (K �� c) and dynamic (impact) toughness. CGD points through loads calculated a third fracture toughness, the toughness calculated for comparison are also listed out. Analysis found that the dynamic impact toughness (x), static toughness K. c (Y) and calculated toughness (z) of Q, for the gray cast iron has the following linear relationship: y = 4.02X-O. 81; Z = I. 75X +2.99. The compacted graphite cast iron has the following relationship: Y = 0.86X +20.2: Z = O. 77X +4.772002.4
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