scholarly journals Effect of destabilization treatment on microstructure, hardness and abrasive wear of high chromium hardfacing

2013 ◽  
Vol 59 (No. 4) ◽  
pp. 128-135 ◽  
Author(s):  
R. Chotěborský ◽  
P. Hrabě
Keyword(s):  
Abrasive Wear ◽  
Arc Welding ◽  
Treatment Time ◽  
Martensite Phase ◽  
Abrasive Wear Resistance ◽  
Austenitic Matrix ◽  
Time Intervals ◽  
High Chromium ◽  
Secondary Carbides ◽  
The Matrix

Hardfacing metals are widely used in arc welding and plasma transfer arc technologies and industries. However, application of hardfacing in agriculture is limited due to low toughness after weld depositing. This study was focused on destabilization of high chromium hardfacing metal. The hardfacing was destabilized at 900 and 1,000°C in the different treatment time intervals. Destabilization treatment showed precipitation of secondary carbides leading to partial transformation of austenite to martensite phase in the matrix. The results show that increasing destabilization temperature increased volume of carbide phase in austenitic matrix which affects abrasive wear resistance.  

scholarly journals Effect of heat treatment on the microstructure, hardness and abrasive wear resistance of high chromium hardfacing

2013 ◽  
Vol 59 (No. 1) ◽  
pp. 23-28 ◽  
Author(s):  
R. Chotěborský
Keyword(s):  
Heat Treatment ◽  
Fracture Toughness ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Abrasive Wear Resistance ◽  
Air Cooling ◽  
High Chromium ◽  
Secondary Carbides ◽  
Cooling Conditions ◽  
Dendritic Austenite

The effect of destabilization heat treatment on the microstructure, hardness, fracture toughness and abrasive wear resistance of high chromium hardfacing was investigated. The results from the study shows that the hardness, frac­ture toughness and abrasive wear resistance are influenced by temperature of destabilization heat treatment and air and furnace cooling conditions, respectively. Destabilization treatment of materials by furnace cooling caused higher secondary carbides in the dendritic austenite whilst by air cooling it showed smaller particles of secondary carbide. Also, it was found that destabilization temperature at 1,000°C improves hardness compared with hardfacing after weld depositing. The study, however, indicated that Palmqvist fracture toughness method is a useful technique for measuring the fracture toughness of high chromium hardfacing compared to Vicker’s hardness method.    

Microstructure and Wear Characteristics of Fe-Based Hard-Facing Alloy Claddings Formed by Gas Tungsten Arc Welding

2012 ◽  
Vol 706-709 ◽  
pp. 3028-3033 ◽  
Author(s):  
C.M. Lin ◽  
W. Wu
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Arc Welding ◽  
Martensite Phase ◽  
Gas Tungsten Arc Welding ◽  
Abrasive Wear Resistance ◽  
Cladding Layer ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Cladding Layers

The current investigation discusses the effect of Mn and Si contents on the microstructure and abrasive wear characteristic in Fe-based hard-facing alloy. A series of Fe-based hard-facing alloys are successfully fabricated onto the S45C steel by gas tungsten arc welding (GTAW). Results reveal that microstructure contains great amounts of martensite phases and moderate amounts of austenite phases. Si element added into Fe-based hard-facing alloy can not obviously affect the properties of the claddings, such as martensite phase, hardness, and abrasive wear resistance. Nevertheless, Mn element added into Fe-based hard-facing alloy can efficiently affect the martensite phase, hardness, and abrasive wear resistance of the claddings. The martensite contents decreases with the increasing of Mn contents in the cladding layers. The hardness increases as the Mn contents decreases, because the martensite contents increases. The abrasive wear resistance is not only related to the hardness of the cladding layer but the martensite contents of the cladding layer. The abrasive wear resistance is an inverse proportion to Mn contents of the cladding layers. Especially, the cladding layers containing 1.4Si-0.3Mn has the highest hardness of HRC 60.1 and the lowest wear loss of 0.37g.

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.

scholarly journals Microstructural evolution during austempering of a ASTM A-532 CLASS III type high chromium white cast iron undergoing abrasive wear

2017 ◽  
Vol 26 (46) ◽  
Author(s):  
Oscar Fabián Higuera-Cobos ◽  
Jeison Bucurú-Vasco ◽  
Andrés Felipe Loaiza-Patiño ◽  
Mónica Johanna Monsalve-Arias ◽  
Dairo Hernán Mesa-Grajales
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Cast Iron ◽  
Chemical Composition ◽  
Abrasive Wear ◽  
Retained Austenite ◽  
White Cast Iron ◽  
Abrasive Wear Resistance ◽  
Class Iii ◽  
High Chromium

This paper studies the influence of variables such as holding temperatures and times during austempering of High Chromium White Cast Iron (HCWCI), with the following chemical composition: Cr 25 %, C 3 %, Si 0.47 %, Mn 0.74 % and Mo 1.02 %. The aim of the austempering was to modify the percentage of retained austenite and its correlation to abrasive wear resistance under different conditions.Microhardness tests, SEM-EDS and XRD were performed to determine mechanical properties, chemical composition, and type of carbides and microstructures present, respectively. The tests complied with the ASTM G-65 standard. Results showed that the best performance against abrasion was achieved for austempering at 450 ºC with holding time of 6 hours.

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.

scholarly journals Abrasive Wear Behavior of Cryogenically Treated Boron Steel (30MnCrB4) Used for Rotavator Blades

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 436 ◽  
Author(s):  
Tejinder Pal Singh ◽  
Anil Kumar Singla ◽  
Jagtar Singh ◽  
Kulwant Singh ◽  
Munish Kumar Gupta ◽  
...  
Keyword(s):  
Abrasive Wear ◽  
Wear Behavior ◽  
Cryogenic Treatment ◽  
Research Work ◽  
Abrasive Wear Resistance ◽  
Boron Steel ◽  
Secondary Carbides ◽  
Untreated Material ◽  
Abrasive Wear Behavior ◽  
Sand Grain Size

Rotavator blades are prone to significant wear because of the abrasive nature of sand particles. The aim of this research work is to investigate the effect of cryogenic treatment and post tempering on abrasive wear behavior, in the presence of angular quartz sand (grain size of 212–425 μm), of rotavator blade material of boron steel (30MnCrB4). Cryogenic treatment has caused an improvement in the abrasive wear resistance and microhardness of 30MnCrB4 by 60% and 260.73%, respectively, compared to untreated material due to enhancement in hardness, the conversion of retained austenite into martensite, and the precipitation of secondary carbides in boron steel after exposure to cryogenic temperature. Economic analysis justifies the additional cost of cryogenic treatment.

scholarly journals Microstructure and Abrasive Wear Resistance of Metal Matrix Composite Coatings Deposited on Steel Grade AISI 4715 by Powder Plasma Transferred Arc Welding Part 1. Mechanical and Structural Properties of a Cobalt-Based Alloy Surface Layer Reinforced with Particles of Titanium Carbide and Synthetic Metal–Diamond Composite

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2382
Author(s):  
Artur Czupryński
Keyword(s):  
Wear Resistance ◽  
Surface Layer ◽  
Abrasive Wear ◽  
Arc Welding ◽  
Metal Matrix ◽  
Abrasive Wear Resistance ◽  
Diamond Composite ◽  
Plasma Transferred Arc ◽  
Synthetic Metal ◽  
Plasma Transferred Arc Welding

The article discusses test results concerning an innovative surface layer obtained using the cladding with powder plasma transferred arc welding (PPTAW) method. The above-named layer, being a metal matrix composite (MCM), is characterised by high abrasive wear resistance, resistance to pressure and impact loads, and the possibility of operation at elevated temperatures. The layer was made using powder in the form of a cobalt alloy-based composite reinforced with monocarbide TiC particles and superhard spherical particles of synthetic metal–diamond composite provided with tungsten coating. The surface layer was deposited on a sheet made of low-alloy structural steel grade AISI 4715. The layer is intended for surfaces of inserts of drilling tools used in the extraction industry. The results showed the lack of the thermal and structural decomposition of the hard layer reinforcing the matrix during the cladding process, its very high resistance to metal-mineral abrasive wear and its resistance to moderate impact loads. The abrasive wear resistance of the deposited layer with particles of TiC and synthetic metal–diamond composite was about than 140 times higher than the abrasive wear resistance of abrasion resistant heat-treated steel having a nominal hardness of 400 HBW. The use of diamond as a metal matrix reinforcement in order to increase the abrasive resistance of the PPTAW overlay layer is a new and innovative area of inquiry. There is no information related to tests concerning metal matrix surface layers reinforced with synthetic metal–diamond composite and obtained using PPTAW method.

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