scholarly journals COMPUTER SIMULATION OF FILLING SAND MOLD PROCESS WITH MELT FOR BLANKS OF STANDARD TENSILE SAMPLES OF CAST IRON PRODUCTION

2021 ◽  
pp. 73-80
Author(s):  
A. A. Baron ◽  
L. V. Palatkina ◽  
S. V. Palatkin
Keyword(s):  
Mechanical Properties ◽  
Computer Simulation ◽  
Cast Iron ◽  
Mold Filling ◽  
Sand Mold ◽  
Iron Production ◽  
Filling Process ◽  
Software Complex ◽  
Grey Cast ◽  
Characteristic Features

Visualization of the mold filling process in the environment of the LVMFlow software complex made it possible to identify the characteristic features of filling sand-shaped grey cast iron with melt to obtain samples for testing mechanical properties.

scholarly journals Microstructure evolution and mechanical properties of drop-tube processed, rapidly solidified grey cast iron

2016 ◽  
Vol 654 ◽  
pp. 143-150 ◽  
Author(s):  
Olamilekan Oloyede ◽  
Timothy D. Bigg ◽  
Robert F. Cochrane ◽  
Andrew M. Mullis
Keyword(s):  
Mechanical Properties ◽  
Cast Iron ◽  
Microstructure Evolution ◽  
Grey Cast Iron ◽  
Drop Tube ◽  
Grey Cast ◽  
Rapidly Solidified

scholarly journals A rapid approach to estimate the mechanical properties of grey cast iron castings

2018 ◽  
Vol 24 (3) ◽  
pp. 213 ◽  
Author(s):  
Paolo Ferro ◽  
Thomas Borsato ◽  
Franco Bonollo ◽  
Stefano Padovan
Keyword(s):  
Mechanical Properties ◽  
Cast Iron ◽  
Master Curve ◽  
Mechanical Characterization ◽  
Grey Cast Iron ◽  
Iron Castings ◽  
Solidification Kinetics ◽  
Grey Cast ◽  
Microstructure Morphology

<p>Grey cast iron is a brittle or quasi-brittle material very sensitive to the microstructure morphology deriving from its solidification kinetics. This is the reason why different zones of a casting, even with the same thickness, may be characterized by different mechanical properties according to the solidification time. The mechanical characterization of the alloy made by following the Standards that refer to values obtained from separately casted samples is insufficient for a designer who needs to know the specific properties of the material in each zone of interest of the casting. In this work a method is described to predict the mechanical properties of castings made of GH 190 cast iron that correlates the solidification times with the ultimate tensile strength through a master curve, supposed to depend only on alloy chemical composition. This predictive approach was successfully validated with experimental mechanical characterization of a real industrial casting.</p>

scholarly journals Comparative Experimental Study of Tribo-Mechanical Performance of Low-Temperature PVD Based TiN Coated PRCL Systems for Diesel Engine

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Ghulam Moeen Uddin ◽  
Muhammad Sajid Kamran ◽  
Jawad Ahmad ◽  
Muhammad Ghufran ◽  
Muhammad Asim ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cast Iron ◽  
Low Temperature ◽  
Cylinder Liner ◽  
Ceramic Coatings ◽  
Grey Cast Iron ◽  
Tin Coating ◽  
Ic Engine ◽  
Trade Offs ◽  
Grey Cast

Piston ring and cylinder liner (PRCL) interface is a major contributor to the overall frictional and wear losses in an IC engine. Physical vapor deposition (PVD) based ceramic coatings on liners and rings are being investigated to address these issues. High temperature requirements for applications of conventional coating systems compromise the mechanical properties of the substrate materials. In the current study, experimental investigation of tribo-mechanical properties is conducted for various titanium nitride (TiN) coated PRCL interfaces in comparison with a commercial PRCL system. Low-temperature PVD based TiN coating is successfully achieved on the grey cast iron cylinder liner samples. Surface roughness of the grey cast iron cylinder liner substrates and the thickness of TiN coating are varied. A comprehensive comparative analysis of various PRCL interfaces is presented and all the trade-offs between various mechanical and tribological performance parameters are summarized. Coating thickness between 5 and 6 micrometres reports best tribo-mechanical behaviour. Adhesion and hardness are found to be superior for the TiN coatings deposited on cylinder liner samples with higher roughness, i.e., ~ 5-micron Ra. Maximum 62 % savings on the COF is reported for a particular PRCL system. Maximum 97% saving in cylinder liner wear rate is reported for another PRCL system.

scholarly journals INFLUENCE OF THE POURING DIRECTION ON THE QUALITY OF THE MELT ENTERING THE MOLD AND OBTAINING A GOOD STANDARD CAST IRON SAMPLE

2021 ◽  
pp. 75-79
Author(s):  
A. A. Baron ◽  
L. V. Palatkina ◽  
S. V. Palatkin
Keyword(s):  
Computer Simulation ◽  
Cast Iron ◽  
Flow Rate ◽  
Axial Zone ◽  
Cast Sample ◽  
Iron Sample ◽  
Grey Cast ◽  
Optimal Values ◽  
Good Standard

The paper presents the results of computer simulation (on the example of grey cast iron of SCH 20 grade) of the influence of melt pouring direction on the degree of defects of shrinkage origin in the axial zone of the neck of a tensile sample when filling the mold cavity with a standard cast sample for optimal values of melt mass flow rate.

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