Application of the Hydraulic Diameter of Interdendritic Space for Calculating the Ultimate Tensile Strength of Gray Cast Iron

2021 ◽  
Vol 410 ◽  
pp. 74-79
Author(s):  
Aleksandr A. Baron ◽  
Lyubov' V. Palatkina ◽  
Stanislav V. Palatkin
Keyword(s):  
Tensile Strength ◽  
Cast Iron ◽  
Comparative Analysis ◽  
Ultimate Tensile Strength ◽  
Gray Cast Iron ◽  
Volume Fraction ◽  
Hydraulic Diameter ◽  
Gray Cast ◽  
Iron Castings ◽  
Interdendritic Space

A comparative analysis of methods for estimating the gray cast iron ultimate tensile strength σu by the hydraulic diameter of interdendritic space DHydIP and the volume fraction of primary austenite dendrites fdc is performed. Almost the same accuracy of cast iron castings σu estimation according to both these parameters DHydIP and fdc of the primary microstructure is shown.

scholarly journals Pengaruh Flux Elektroda AWS 5.1 E 6013 Dicelup Oli pada Pengelasan Besi Cor Kelabu FC-25 Terhadap Kekuatan Tarik

2019 ◽  
Vol 3 (2) ◽  
pp. 57
Author(s):  
Aris Hermanto ◽  
Iswanto Iswanto
Keyword(s):  
Tensile Strength ◽  
Cast Iron ◽  
Ultimate Tensile Strength ◽  
Base Metal ◽  
Test Specimen ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Material Base ◽  
Specimen Material ◽  
Welding Electrode

In this study using specimens of gray cast iron Fc-25 (grade 2500). The test specimen is needed there 12 specimens include three test specimen material (base metal), 3 specimen variety of welding electrodes cast CI-A1, 3 specimen variety of welding using welding electrodes AWS 5.1 E6013 without immersion oil, three specimens variation welding using welding electrodes 5.1 AWS E6013 with immersion oil. The results of testing specimens welding electrodes cast CI-A1 in the amount of 16.63 MPa with 0.84% strain and a variety of welding electrode AWS E6013 5.1 with immersion oil also has the highest ultimate tensile strength of welding another variation in the amount of 17.98 MPa with a strain of 0.48% , While the lowest was tensile strength using a variety of welding electrode AWS E6013 5.1 without immersion oil that is 16.28 MPa with a strain of 0.49%.

scholarly journals ON THE POSSIBILITY OF APPLYING A NEW PARAMETER OF THE PRIMARY STRUCTURE OF GRAY CAST IRON TO EVALUATE THE STRENGTH OF CASTINGS

2020 ◽  
pp. 66-71
Author(s):  
A. A. Baron ◽  
L. V. Palatkina
Keyword(s):  
Tensile Strength ◽  
Cast Iron ◽  
Ultimate Tensile Strength ◽  
Correlation Coefficient ◽  
Primary Structure ◽  
Gray Cast Iron ◽  
Eutectic Phase ◽  
Gray Cast ◽  
Primary Austenite ◽  
Lamellar Graphite

The possibility of evaluating the strength of pearlite gray cast iron with lamellar graphite using the ratio of the area of the interdendritic eutectic phase to the perimeter of the primary austenite dendritic crystals was investigated. It is found that this parameter increases from 15,1 to 39,3 as the ultimate tensile strength of cast iron decreases from 300 to 180 MPa. The correlation coefficient for this relationship was 0.9.

Production of High-Quality Castings from Gray Iron by Differentiated Cooling in Iron Mould

2019 ◽  
Vol 973 ◽  
pp. 15-20 ◽  
Author(s):  
Natalia I. Gabelchenko ◽  
Artem A. Belov ◽  
Oksana N. Meshcheryakova
Keyword(s):  
Tensile Strength ◽  
Cast Iron ◽  
Cooling Rate ◽  
Gray Cast Iron ◽  
Gray Iron ◽  
Gray Cast ◽  
High Quality ◽  
Iron Castings

The paper considers the possibility of improving the quality of gray cast iron castings by controlling the cooling rate of castings in a mold. It is shown that the use of differentiated cooling can increase tensile strength of cast iron by 12-16%

ISO 185/JL/225

Alloy Digest ◽  
2020 ◽  
Vol 69 (9) ◽  
Keyword(s):  
Tensile Strength ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Heat Treating ◽  
International Organization ◽  
Gray Cast ◽  
Damping Capacity ◽  
Lower Strength ◽  
Test Pieces ◽  
Lower Carbon

Abstract ISO 185/JL/225 is an intermediate-tensile-strength gray cast iron that has a predominantly pearlitic matrix, and a tensile strength of 225–325 MPa (33-47 ksi), when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter test bars. Compared with the lower strength gray cast iron grades, ISO 185/JL/225 contains lower carbon and silicon contents, while still maintaining excellent thermal conductivity, damping capacity, and machinability. This datasheet provides information on composition, physical properties, tensile properties, and compressive strength as well as fatigue. It also includes information on heat treating. Filing Code: CI-73. Producer or source: International Organization for Standardization (ISO).

ISO 185/JL/350

Alloy Digest ◽  
2021 ◽  
Vol 70 (9) ◽  
Keyword(s):  
Thermal Conductivity ◽  
Tensile Strength ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
High Strength ◽  
Heat Treating ◽  
Gray Cast ◽  
Spheroidal Graphite ◽  
Cast Irons ◽  
Test Pieces

Abstract ISO 185/JL/350 is a higher-tensile-strength gray cast iron that has a pearlitic matrix, and a tensile strength of 350–450 MPa (51–65 ksi), when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter test bars. It provides a combination of high strength while still maintaining good thermal conductivity compared with other types of cast iron. This grade approaches the maximum tensile strength attainable in gray cast iron. Applications therefore tend to be confined to those where thermal conductivity requirements in service preclude the use of one of the other higher-strength materials such as spheroidal graphite cast irons, which have inferior thermal properties. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on wear resistance as well as casting and heat treating. Filing Code: CI-85. Producer or source: International Organization for Standardization.

MEEHANITE GC275

Alloy Digest ◽  
2021 ◽  
Vol 70 (2) ◽  
Keyword(s):  
Tensile Strength ◽  
Cast Iron ◽  
Physical Properties ◽  
Tensile Properties ◽  
Gray Cast Iron ◽  
Heat Treating ◽  
Gray Cast ◽  
Strength Grade ◽  
Test Pieces

Abstract Meehanite GC275 is a pearlitic gray cast iron that has a minimum tensile strength of 275 MPa (40 ksi) when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter, test bars. This intermediate-tensile-strength grade has a fine, close-grained structure that is ideal for finishing cuts. It is used for a wide variety of applications on account of its useful combination of good all round properties with adaptability to production of small and large volumes. This datasheet provides information on physical properties, hardness, and tensile properties as well as fatigue. It also includes information on heat treating, machining, and joining. Filing Code: CI-78. Producer or source: Meehanite Metal Corporation.

ISO 185/JL/275

Alloy Digest ◽  
2021 ◽  
Vol 70 (3) ◽  
Keyword(s):  
Tensile Strength ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Heat Treating ◽  
Gray Cast ◽  
Damping Capacity ◽  
Wear Properties ◽  
Lower Strength ◽  
Test Pieces ◽  
Lower Carbon

Abstract ISO 185/JL/275 is an intermediate-tensile-strength gray cast iron that has a pearlitic matrix and a tensile strength of 275–375 MPa (40–54 ksi), when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter test bars. Compared with the lower strength gray cast iron grades, ISO 185/JL/275 contains lower carbon and silicon contents, while still maintaining good thermal conductivity and damping capacity. Owing to its higher tensile strength and hardness, it exhibits superior wear properties. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and bend strength as well as fatigue. It also includes information on casting and heat treating. Filing Code: CI-79. Producer or source: International Organization for Standardization.

Influence of Alloying on the Uniformity of Strength and Structure of Gray Iron

2012 ◽  
Vol 490-495 ◽  
pp. 3348-3352
Author(s):  
Li Li Xiao ◽  
Feng Zhang Ren ◽  
Meng Qi Liu ◽  
Yu Fei Wang ◽  
Na Wen Zhang ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Cast Iron ◽  
Cutting Force ◽  
Gray Cast Iron ◽  
Brinell Hardness ◽  
Pure Copper ◽  
Gray Iron ◽  
Gray Cast ◽  
Micro Hardness ◽  
Cast Irons

Two gray cast irons with equal tensile strength were prepared to investigate the influence of alloying on the machinability of gray iron. After 75SiFe modifying treatment, they were alloyed by the mixture additive containing RE, Cr, Mn, Si and Fe with a certain proportion and pure copper, respectively. The hardness, section sensitivity, structuralhomogenity and machinability were tested in this experiment. The results show that both of the gray irons have the same brinell hardness and the micro-hardness. The section sensitivity of the gray iron alloyed by the mixture additive is smaller than the gray iron alloyed by copper. The main cutting force of the cast iron alloyed by the mixture additive is lower than that of the cast iron alloyed by copper, therefore, the gray cast iron alloyed by the mixture additive has a better machinability than the cast iron alloyed by copper.

Grey Cast Iron Strength аs Function оf Primary Austenite Dendrites Volume Fraction

2020 ◽  
Vol 299 ◽  
pp. 729-733
Author(s):  
A.A. Baron ◽  
L.V. Palatkina ◽  
I.L. Gonik
Keyword(s):  
Composite Material ◽  
Cast Iron ◽  
Ultimate Strength ◽  
Primary Structure ◽  
Gray Cast Iron ◽  
Volume Fraction ◽  
Grey Cast Iron ◽  
Gray Cast ◽  
Grey Cast ◽  
Quantitative Contribution

On the basis of approach to primary structure of gray cast iron as to an analog of the composite material, reinforced by discrete fibers, the quantitative contribution of dendritic crystals and the eutectic matrix to ultimate strength in tension is defined.

scholarly journals Evaluation of the Mechanical Properties of Gray Cast Iron Using Electrical Resistivity Measurement

2016 ◽  
Vol 16 (4) ◽  
pp. 29-32 ◽  
Author(s):  
M. Bieroński ◽  
O. Krasa ◽  
M. Koza ◽  
D. Ksiąźek ◽  
R. Kuś
Keyword(s):  
Tensile Strength ◽  
Electrical Resistivity ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Carbon Equivalent ◽  
Electrical Resistivity Measurement ◽  
Regression Equations ◽  
Power Functions ◽  
The Relationship

Abstract In this paper an attempt to determine the relationship between the electrical resistivity and the tensile strength and hardness of cast iron of carbon equivalent in the range from 3.93% to 4.48%. Tests were performed on the gray cast iron for 12 different melts with different chemical composition. From one melt poured 6 samples. Based on the study of mechanical and electro-resistive determined variation characteristics of tensile strength, hardness and resistivity as a function of the carbon equivalent. Then, regression equations were developed as power functions describing the relationship between the resistivity of castings and their tensile strength and hardness. It was found a high level of regression equations to measuring points, particularly with regard to the relationship Rm=f(ρ). The obtained preliminary results indicate the possibility of application of the method of the resistance to rapid diagnostic casts on the production line, when we are dealing with repeatable production, in this case non variable geometry of the product for which it has been determinated before a regression equation.

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