Effect of copper on the thermal conductivity, wear resistance, and machinability of gray cast iron

1989 ◽  
Vol 31 (4) ◽  
pp. 262-265 ◽  
Author(s):  
A. A. Zhukov ◽  
V. P. Polovinchuk ◽  
V. S. Churkin ◽  
E. V. Kaubrak ◽  
V. A. Kuz'menko ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Wear Resistance ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Effect Of Copper

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.

Experimental Methods for NiCrBSi-WC Cladding on Gray Cast Iron Trim Cutter Die

2015 ◽  
Vol 761 ◽  
pp. 298-302
Author(s):  
N.I.S. Hussein ◽  
S.R. Kamarul ◽  
Mohamad Nizam Ayof
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Rejection Rate ◽  
Cutting Edge ◽  
Gray Cast ◽  
Filler Material ◽  
Burr Formation ◽  
Resistant Material ◽  
Wear Resistant

The wear on the cutting edge of the gray cast iron trim cutter die will result in the burr formation on the trimmed blanks. This will increase the rejection rate, and hence, decreasing the efficiency of the production. By applying a wear resistant material, the wear rate on the cutting edge of the die is believed to be minimized. In this paper, the methodology of the experiment on the cladding process using gas metal arc as the heat source, and NiCrBSi-WC as the filler material on gray cast iron substrate is presented. NiCrBSi-WC is chosen as the filler material because of its outstanding wear resistance characteristic. Furthermore, it is a popular choice as a wear resistant material in various types of industry. The purpose of the planned experiment is to maximize the wear resistance of the trim cutting die. It is also a fraction of the case study based on the parts production in the automotive industry in Malaysia.

Influence of Orientations of Bionic Unit Fabricated by Laser Remelting on Fatigue Wear Resistance of Gray Cast Iron

2015 ◽  
Vol 24 (6) ◽  
pp. 2511-2520 ◽  
Author(s):  
Zhi-Kai Chen ◽  
Ti Zhou ◽  
Hai-feng Zhang ◽  
Wan-shi Yang ◽  
Hong Zhou
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Laser Remelting ◽  
Fatigue Wear

Microstructure and tribological properties of gray cast iron specimens coated by aluminizing, boronizing, chromizing and siliconizing

2012 ◽  
Vol 1516 ◽  
pp. 115-120 ◽  
Author(s):  
T. Murakami ◽  
K. Matsuzaki ◽  
Y. Gomi ◽  
S. Sasaki ◽  
H. Inui
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Tribological Properties ◽  
Gray Cast Iron ◽  
Steel Ball ◽  
Gray Cast ◽  
Iron Plate ◽  
Aisi 52100 ◽  
Alpha Olefin ◽  
Aisi 52100 Steel

ABSTRACTIn this study, aluminized, boronized, chromized and siliconized gray cast iron plate specimens were prepared, and their microstructures and tribological properties were investigated. The surfaces of the aluminized, boronized, chromized and siliconized specimens mainly consisted of FeAl, Fe2B, (Cr, Fe)23C6 and FeSi phases, respectively. Also, the surface of the boronized specimen exhibited the highest microvickers hardness of all the specimens. The aluminized, boronized and chromized specimens exhibited friction coefficients as low as the non-coated specimens when sliding against AISI 52100 steel ball specimens in poly-alpha-olefin. In addition, the boronized and chromized specimens exhibited much higher wear resistance than the non-coated specimens.

scholarly journals Effect of silicon carbide modifiers on the physical-mechanical properties of gray cast iron and cast iron with spheroidal graphite

2021 ◽  
Vol 340 ◽  
pp. 01006
Author(s):  
Vladimir A. Poluboyarov ◽  
Anatoliy N. Cherepanov ◽  
Viktor A. Kuznetsov ◽  
Zoya A. Korotaeva ◽  
Alexander A. Zhdanok
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Wear Resistance ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Term Treatment ◽  
Gray Cast ◽  
Spheroidal Graphite ◽  
Short Term Treatment ◽  
Maximal Increase

The influence of mechanochemically produced modifiers on the properties of cast iron at out-of-furnace modification has been studied. Short-term treatment in mechanochemical activators makes it possible to produce composite modifiers, which are wetted with iron melts, are uniformly distributed therein and effectively influence the crystallization processes. The effect of a modifier based on silicon carbide and chromium (as a protector metal) on the physical-mechanical properties of gray cast-iron and cast-iron with spheroidal graphite is considered. The introduction of SiC in the amount of 0.01-0.1 wt.% into gray cast iron causes the formation of mainly perlitic structure and, as a consequence, an increase in strength, hardness and wear resistance. For SiC content 0.1 wt.%, the tensile strength of GG-15 samples increased by 22.7%, GG-25 by 8%. The maximal increase in the hardness is observed for SiC concentration: for GG-15 – 0.1, for GG-25 – 0.01 wt.%. The GG-25 sample with 0.1 wt.% SiC exhibited the highest wear resistance. The introduction of SiC (0.01 – 0.1 wt.%) into cast iron with spheroidal graphite causes an increase in ferrite content, which promotes a substantial increase in impact viscosity and wear resistance (the highest wear resistance is observed with the introduction of 0.05 wt.% SiC).

scholarly journals Increasing wear resistance of the protective sleeve of the centrifugal pump made of gray cast iron by surface hardening

2021 ◽  
pp. 103
Author(s):  
Nataliia Lalazarova ◽  
Оlga Afanasieva ◽  
Olena Popova ◽  
Oleksiy Dmytrenko
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
High Frequency ◽  
Gray Cast Iron ◽  
Operating Time ◽  
Hardened Layer ◽  
Gray Cast ◽  
Centrifugal Pumps ◽  
Surface Quenching ◽  
Surface Induction

One of the weak spots that reduce the guaranteed operating time of centrifugal pumps is the assembly that includes the seal and protective sleeves. The main purpose of the bushings in the rotor kit is to protect the shaft from corrosion, erosion and wear. The sleeve operates under abrasive wear conditions by packing elements and abrasive particles that get into the liquid pumped by the pump. The protective sleeves made of gray cast iron do not meet the service life in connection with accelerated surface wear. Goal. The purpose of the work is to ensure high wear resistance of cast iron pump parts by heat treatment. Method. The chemical composition was determined on a portable laser analyzer Laser Z200 C +. The structure was studied using an optical microscope. The wear was investigated by the roller-block method on a friction machine. Surface quenching was carried out with a high-frequency lamp generator in a single-turn inductor. Results. The microstructure of gray cast iron as cast consists of pearlite, ferite, double phosphide eutectic and inclusions of lamellar graphite. Microhardness of small-lamellar pearlite is Н50 = 1550–2220 MPa, microhardness of phosphide eutectic is Н50 = 6500–8000 MPa. Surface induction quenching by high-frequency currents followed by low tempering is an effective way to increase the wear resistance of cast iron products of small cross-section and does not cause warping. Cast iron for surface quenching should have a pearlite structure, and graphite should be contained in the form of small inclusions. The optimal heating temperature for induction hardening was determined as 900 °С, which made it possible to obtain the microstructure of the hardened layer – martensite, double phosphide eutectic and graphite. Scientific novelty. The developed modes of surface quenching make it possible to preserve a double phosphide eutectic in the structure of the surface layer, which makes it possible to obtain high hardness and wear resistance of the hardened layer. Practical significance. Surface induction quenching with low tempering of cast gray iron increased its wear resistance by 2,4 times. The previous normalization had practically no effect on the durability of cast iron, since its structure contains less than 10% ferrite.

scholarly journals Effects of quench-tempering and laser hardening treatment on wear resistance of gray cast iron

2020 ◽  
Vol 9 (4) ◽  
pp. 8163-8171 ◽  
Author(s):  
Bingxu Wang ◽  
Yuming Pan ◽  
Yu Liu ◽  
Na Lyu ◽  
Gary C. Barber ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Laser Hardening ◽  
Gray Cast ◽  
Hardening Treatment

DURA-BAR G2

Alloy Digest ◽  
2020 ◽  
Vol 69 (1) ◽  
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Physical Properties ◽  
Tensile Properties ◽  
Gray Cast Iron ◽  
Vibration Damping ◽  
Gray Cast ◽  
Damping Properties ◽  
Continuous Cast ◽  
Cast Products

Abstract Dura-Bar G2 is a gray cast iron bar is used for continuous cast products. It is a good fit for a variety of applications due to its good machinability, wear resistance, and vibration damping properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on machining. Filing Code: CI-65. Producer or source: Charter Dura-Bar, Inc.

Effect of the structure and hardness of gray cast iron on its wear resistance

1970 ◽  
Vol 6 (6) ◽  
pp. 515-517
Author(s):  
V. V. Spasskii ◽  
I. V. Patalakha ◽  
P. D. Kurochkin ◽  
A. A. Chernyi
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Gray Cast

Development of a laser surface melting process for improvement of the wear resistance of gray cast iron

Wear ◽  
1983 ◽  
Vol 86 (2) ◽  
pp. 315-325 ◽  
Author(s):  
A. Blarasin ◽  
S. Corcoruto ◽  
A. Belmondo ◽  
D. Bacci
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Melting Process ◽  
Surface Melting ◽  
Laser Surface ◽  
Laser Surface Melting ◽  
Gray Cast
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