scholarly journals Changes in Abrasive Wear Resistance during Miller Test of High-Manganese Cast Steel with Niobium Carbides Formed in the Alloy Matrix

2021 ◽  
Vol 11 (11) ◽  
pp. 4794
Author(s):  
Grzegorz Tęcza
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Cast Steel ◽  
Cold Work ◽  
Abrasive Wear Resistance ◽  
Dynamic Loads ◽  
High Fracture Toughness ◽  
High Manganese ◽  
Niobium Content ◽  
Miller Test

High-manganese Hadfield cast steel is commonly used for machine components operating under dynamic load conditions. The high fracture toughness and abrasive wear resistance of this steel are the result of an austenitic structure, which—while being ductile—at the same time tends to surface harden under the effect of cold work. Absence of dynamic loads (e.g., in the case of sand abrasion) causes rapid and premature wear of parts. To improve the abrasive wear resistance of high-manganese cast steel for operation under the conditions free from dynamic loads, primary niobium carbides are produced in this cast steel during the melting process to obtain in castings, after melt solidification, the microstructure consisting of an austenitic matrix and primary niobium carbides uniformly distributed in this matrix. The measured hardness of the tested samples as cast and after solution heat treatment is 260–290 HV and is about 30–60 HV higher than the hardness of common Hadfield cast steel, which is 230 HV. Compared to common Hadfield cast steel, the abrasive wear resistance of the tested high-manganese cast steel measured in the Miller test is at least three times higher at the niobium content of 3.5 wt%. Increasing the niobium content to 4.5 wt%. in the tested samples increases this wear resistance even more.

scholarly journals Cast High-Manganese Steel – the Effect of Microstructure on Abrasive Wear Behaviour in Miller Test

2015 ◽  
Vol 15 (2) ◽  
pp. 35-38 ◽  
Author(s):  
B. Kalandyk ◽  
G. Tęcza ◽  
R. Zapała ◽  
S. Sobula
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Cast Steel ◽  
Abrasive Wear Resistance ◽  
Manganese Steel ◽  
Hadfield Steel ◽  
Wear Behaviour ◽  
Stable Complex ◽  
High Manganese ◽  
High Manganese Steel

Abstract The results of the modification of austenitic matrix in cast high-manganese steel containing 11÷19% Mn with additions of Cr, Ni and Ti were discussed. The introduction of carbide-forming alloying elements to this cast steel leads to the formation in matrix of stable complex carbide phases, which effectively increase the abrasive wear resistance in a mixture of SiC and water. The starting material used in tests was a cast Hadfield steel containing 11% Mn and 1.34% C. The results presented in the article show significant improvement in abrasive wear resistance and hardness owing to the structure modification with additions of Cr and Ti.

Wear Resistance of 18%Cr-9%Ni Steel Used for Cast Parts of Pumps Operating in Corrosive – Erosive Environments

2013 ◽  
Vol 58 (3) ◽  
pp. 841-844
Author(s):  
B. Kalandyk
Keyword(s):  
Wear Resistance ◽  
Titanium Nitride ◽  
Abrasive Wear ◽  
Cast Steel ◽  
Experimental Studies ◽  
Abrasive Wear Resistance ◽  
Test Cycle ◽  
Abrasive Medium ◽  
Miller Test ◽  
Cast Parts

Abstract This paper presents the results of experimental studies, the main aim of which has been to demonstrate that changes in the microstructure of austenitic 18%Cr-9%Ni cast steel provoked by the addition of 1.4% boron, and boron with titanium, give increased wear resistance. After melting the high-alloyed 18%Cr-9%Ni cast steel with an addition of boron, and boron with titanium, metallographic examinations were conducted using light microscopy and SEM. These examinations revealed in the austenitic structure of the 18%Cr-9%Ni cast steel, the presence of a eutectic rich in boron and chromium, and characterised by a microhardness of 1838-1890 μ HV20. Additionally, in the cast steel inoculated with boron and titanium, the presence of titanium nitride precipitates was observed. Changes that have occurred in the microstructure as a result of introducing the additions of boron, and boron with titanium, also caused an increase of the cast steel hardness from 212 HV30 to 290-320 HV30 and 320-350 HV30, respectively. To determine the abrasive wear resistance, 16-hour Miller test was performed (ASTM G 75-07), wherein the abrasive medium was a mixture of SiC and water. Obtaining the hard, rich in boron and chromium, eutectic and titanium nitride precipitates in the structure of 18%Cr-9%Ni cast steel increased the abrasive wear resistance by approximately 21%, according to the data recorded in the sixteenth hour of the test cycle. As an additional benchmark point for the results obtained served the wear resistant, structural, L35GSM steel used for castings working in difficult conditions. Comparing the values of abrasive wear resistance obtained for the 18%Cr-9%Ni cast steel and cast L35GSM steel, an increase in the wear resistance of the 18%Cr-9%Ni cast steel by about 35% has been proved.

BÖHLER K100

Alloy Digest ◽  
2020 ◽  
Vol 69 (3) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Abrasive Wear ◽  
Tool Steel ◽  
Cold Work ◽  
Abrasive Wear Resistance ◽  
High Carbon ◽  
High Chromium ◽  
Cold Work Tool Steel

Abstract Böhler K100 is a high-carbon, high-chromium (12%), alloy cold-work tool steel that is suitable for medium run tooling in applications where a very good abrasive wear resistance is needed but where demands on chipping resistance are small. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming and machining. Filing Code: TS-788. Producer or source: voestalpine Böhler Edelstahl GmbH & Co.

BÖHLER K107

Alloy Digest ◽  
2020 ◽  
Vol 69 (9) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Abrasive Wear ◽  
Cold Work ◽  
Heat Treating ◽  
Abrasive Wear Resistance ◽  
Tungsten Alloy ◽  
High Carbon ◽  
Cold Work Tool Steel ◽  
Very High

Abstract Böhler K107 is a high-carbon (2.1%), 12% chromium. 0.7 % tungsten, alloy cold-work tool steel that is used in applications where a very high abrasive wear resistance is needed, but where demands on chipping resistance are small. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming and heat treating. Filing Code: TS-799. Producer or source: voestalpine Böhler Edelstahl GmbH&Co KG.

On effect of surface hardening on impact and abrasive wear resistance of Hadfi eld steel

2020 ◽  
pp. 252-255
Author(s):  
V.I. Bolobov ◽  
V.S. Bochkov ◽  
E.V. Akhmerov ◽  
V.A. Plashchinsky ◽  
E.A. Krivokrisenko E.A.
Keyword(s):  
Plastic Deformation ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Work Hardening ◽  
Surface Hardening ◽  
Cold Work ◽  
Abrasive Wear Resistance ◽  
Hadfield Steel ◽  
Mining Equipment ◽  
Effect Of Surface

On the example of Hadfield steel, as the most common material of fast-wearing parts of mining equipment, the effect of surface hardening by plastic deformation on their impact and abrasive wear resistance is considered. Wear test is conducted on magnetic ironstone as typical representative of abrasive and hard rock. As result of wear of initial samples with hardness of ∼200 HB and samples pre-hardened with different intensities to the hardness of 300, 337 and 368 HB, it is found that during the initial testing period, the initial samples pass the “self-cold-work hardening” stage with increase in hardness to ∼250 HB, which remains virtually unchanged during further tests; the hardness of the pre-hardened samples does not change significantly throughout the tests. It is established that the rate of impact-abrasive wear of pre-hardened samples is significantly (up to 1.4 times) lower than the original ones that are not subjected to plastic deformation, and decreases with increasing degree of cold-work hardening. Preliminary surface hardening by plastic deformation can serve as effective way to increase the service life of fast-wearing working parts of mining equipment.

Influence of Alloying and Heat Treatment on the Abrasive and Impact–Abrasive Wear Resistance of High-Manganese Steel

2017 ◽  
Vol 47 (11) ◽  
pp. 705-709 ◽  
Author(s):  
K. N. Vdovin ◽  
N. A. Feoktistov ◽  
D. A. Gorlenko ◽  
V. P. Chernov ◽  
I. B. Khrenov
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Abrasive Wear Resistance ◽  
Manganese Steel ◽  
High Manganese ◽  
High Manganese Steel

UDDEHOLM SVERKER 3

Alloy Digest ◽  
2020 ◽  
Vol 69 (8) ◽  
Keyword(s):  
Wear Resistance ◽  
Compressive Strength ◽  
Abrasive Wear ◽  
Cold Work ◽  
Heat Treating ◽  
Abrasive Wear Resistance ◽  
Tungsten Alloy ◽  
High Carbon ◽  
Long Run ◽  
Cold Work Tool Steel

Abstract Uddeholm Sverker 3 is a high-carbon, chromium-tungsten, alloy cold-work tool steel. It is suitable for medium and long run tooling in applications where a very good abrasive wear resistance is needed. Uddeholm Sverker 3 contains large carbides, which are advantageous for abrasive wear resistance but which reduce chipping resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and compressive strength. It also includes information on heat treating. Filing Code: TS-797. Producer or Source: Uddeholms AB.

INDUSTEEL D2

Alloy Digest ◽  
2020 ◽  
Vol 69 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Tool Steel ◽  
Cold Work ◽  
Abrasive Wear Resistance ◽  
High Carbon ◽  
High Hardenability ◽  
High Chromium ◽  
Cold Work Tool Steel ◽  
D3 Tool Steel

Abstract Industeel D2 is an air-hardening, high-carbon (1.5%), high-chromium (12%), alloy cold-work tool steel that also contains molybdenum and vanadium. It is specifically designed to provide high abrasive wear resistance and high hardenability. This grade can be used for cutting and deformation tools submitted to high abrasive wear. It can be used when Type D3 tool steel shows an excessive sensitivity to cracking or chipping. This datasheet provides information on composition, physical properties, hardness, and elasticity. Filing Code: TS-791. Producer or source: Industeel France (a subsidiary of ArcelorMittal.

DEUTSCHE EDELSTAHLWERKE CRYODUR 2080

Alloy Digest ◽  
2020 ◽  
Vol 69 (5) ◽  
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Tool Steel ◽  
Cold Work ◽  
Heat Treating ◽  
Abrasive Wear Resistance ◽  
High Carbon ◽  
High Chromium ◽  
Specialty Steel ◽  
Cold Work Tool Steel

Abstract Deutsche Edelstahlwerke Cryodur 2080 is a high-carbon (2%), high-chromium (12%), alloy cold-work tool steel that is suitable for medium run tooling in applications where a very good abrasive wear resistance is needed but where demands on chipping resistance are small. This datasheet provides information on composition, hardness, and elasticity. It also includes information on forming and heat treating. Filing Code: TS-792. Producer or source: Deutsche Edelstahlwerke Specialty Steel GmbH.

Sign in / Sign up

Export Citation Format

Share Document