Peter Jurči
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View article: Growth, characterization, and kinetic modeling of diiron boride layers on W302 steel
Growth, characterization, and kinetic modeling of diiron boride layers on W302 steel Open
This study was focused on solid boriding of W302 steel, by using a Durborid powder with lowered active boron content, to obtain pure diiron boride layers. The processes were realized at temperatures from the range of 950–1050 °C and for ho…
View article: Boride layers on high-carbon high-chromium tool steels: Microstructure-mechanical properties relationship
Boride layers on high-carbon high-chromium tool steels: Microstructure-mechanical properties relationship Open
High-carbon high-alloyed steels (Sleipner, K 190, Sverker 21, Sverker 3) were boronised at 1323 K for 10 h. The layers that developed were composed of FeB and Fe2B phases. Beneath the borides, transient regions were found with the presence…
View article: Effect of Heat and Cryogenic Treatments on Microstructure and Properties of 12% Tin Bronze
Effect of Heat and Cryogenic Treatments on Microstructure and Properties of 12% Tin Bronze Open
In the present work, 12% tin bronze (CuSn12) was subjected to solutioning, artificial aging, and cryogenic treatment. The as-received CuSn12 material contained the α-solid solution and the δ-eutectoid (a mixture of the α- and δ-phases). So…
View article: Characterization of Boride Layers on S235 Steel and Calculation of Activation Energy Using Taylor Expansion Model
Characterization of Boride Layers on S235 Steel and Calculation of Activation Energy Using Taylor Expansion Model Open
S235 low-carbon steel was boronized between 1123 K and 1273 K using a commercial powder mixture (Durborid) to study the formation and growth behavior of boride layers. The type of interface and thickness of the resulting layers were determ…
View article: Influence of Boride Layer Composition on Toughness Strength on Vanadis 6 Tool Steel
Influence of Boride Layer Composition on Toughness Strength on Vanadis 6 Tool Steel Open
View article: Effect of Cryogenic Treatments on Hardness, Fracture Toughness, and Wear Properties of Vanadis 6 Tool Steel
Effect of Cryogenic Treatments on Hardness, Fracture Toughness, and Wear Properties of Vanadis 6 Tool Steel Open
The ability of cryogenic treatment to improve tool steel performance is well established; however, the selection of optimal heat treatment is pivotal for cost reduction and extended tool life. This investigation delves into the influence o…
View article: Cryogenic Treatment of Martensitic Steels: Microstructural Fundamentals and Implications for Mechanical Properties and Wear and Corrosion Performance
Cryogenic Treatment of Martensitic Steels: Microstructural Fundamentals and Implications for Mechanical Properties and Wear and Corrosion Performance Open
Conventional heat treatment is not capable of converting a sufficient amount of retained austenite into martensite in high-carbon or high-carbon and high-alloyed iron alloys. Cryogenic treatment induces the following alterations in the mic…
View article: Microstructure – Properties relationship in laser-welded AZ31B magnesium alloy
Microstructure – Properties relationship in laser-welded AZ31B magnesium alloy Open
The AZ31B magnesium alloy was laser-welded at three different (1.2, 1.6, and 2 kW) laser output powers in the present work. All the butt weld joints are almost defect-free. The size of the weld joint slightly increases with increasing lase…
View article: Cryogenic Treatment of Martensitic Steels: Microstructural Fundamentals and Implications for Mechanical, Wear and Corrosion Performance
Cryogenic Treatment of Martensitic Steels: Microstructural Fundamentals and Implications for Mechanical, Wear and Corrosion Performance Open
Conventional heat treatment is not capable of converting a sufficient amount of retained austenite into martensite in high-carbon or high-carbon and high-alloyed iron alloys. Cryogenic treatment induces the following alterations in the mic…
View article: The effect of the diode laser beam power on the behaviour of the ZrC powder pre-coat and the 145Cr6 steel substrate during laser processing
The effect of the diode laser beam power on the behaviour of the ZrC powder pre-coat and the 145Cr6 steel substrate during laser processing Open
The paper presents both the production method and its impact on selected properties of composite coatings reinforced with hard ZrC particles. The Fe/ZrC coatings were produced using diode laser by remelting the pre-coat in the form of past…
View article: Optimization of wear-, fracture- and corrosion performance of Vanadis 6 steel through cryogenic treatment and tempering
Optimization of wear-, fracture- and corrosion performance of Vanadis 6 steel through cryogenic treatment and tempering Open
Vanadis 6 cold work tool steel was vacuum austenitized, room temperature quenched, differently cryogenically treated (-75, -140 and -196 °C for different durations) and double tempered, at temperatures of either 170 or 530 °C. Galling resi…
View article: Characterizations and Kinetic Modelling of Boride Layers on Bohler K190 Steel
Characterizations and Kinetic Modelling of Boride Layers on Bohler K190 Steel Open
In this study, the Bohler K190 steel, manufactured by the powder metallurgy (PM) process, was subjected to the boronizing process. This thermochemical treatment was carried out in the range of 1173 to 1323 K, for 1–10 h. The scanning elect…
View article: Characterizations and Kinetic Modelling of Boride Layers on Bohler K190 Steel
Characterizations and Kinetic Modelling of Boride Layers on Bohler K190 Steel Open
In this study, the Bohler K 190 steel was used. The steel was manufactured by the powder metallurgy (PM) process. The boronizing process was carried out in the range of 1173 to 1323 K, for 1-10 h. The samples were boronized in solid medium…
View article: Characterization and Boron Diffusion Kinetics on the Surface-Hardened Layers of Royalloy Steel
Characterization and Boron Diffusion Kinetics on the Surface-Hardened Layers of Royalloy Steel Open
The Royalloy steel was boronized at 1173, 1223, 1248, 1273 or 1323 K for 1, 3, 5, 7 or 10 h using a Durborid powder mixture. The boronized samples were analyzed by scanning electron microscopy, X-ray diffraction and Vickers microhardness t…
View article: Heat Treatment of Metallic Materials in Modern Industry
Heat Treatment of Metallic Materials in Modern Industry Open
The Heat Treatment of Metallic Materials in Modern Industry is a Special Issue of the journal Materials, which aims to publish original full-length articles and review papers on basic and applied research centered around the given topic, a…
View article: Microstructure and Selected Properties of Iron–Vanadium Coatings Obtained by the Laser Processing of a VC Pre-Coat Applied on Steel—Single and Multiple Laser Tracks Study
Microstructure and Selected Properties of Iron–Vanadium Coatings Obtained by the Laser Processing of a VC Pre-Coat Applied on Steel—Single and Multiple Laser Tracks Study Open
This paper presents the results of the microstructure, mechanical and physicochemical properties of coatings produced by the remelting of a VC pre-coat applied in the form of a paste on 145Cr6 steel. The remelting process was carried out u…
View article: Influence of Manufacturging Parameters on Microstructure, Chemical Composition, Microhardness, Corrosion and Wear Resistance of ZrC Coatings Produced on Monel®400 Using Laser Processing Technology
Influence of Manufacturging Parameters on Microstructure, Chemical Composition, Microhardness, Corrosion and Wear Resistance of ZrC Coatings Produced on Monel®400 Using Laser Processing Technology Open
This paper presents the influence of production parameters and analysis of ZrC coatings production on Monel®400 substrate. The effects of laser beam power on the microstructure, chemical composition, corrosion resistance and on selected me…
View article: Optimization of cryogenic treatment to improve the tribological behavior of Vanadis 6 steel using the Taguchi and grey relation approach
Optimization of cryogenic treatment to improve the tribological behavior of Vanadis 6 steel using the Taguchi and grey relation approach Open
In this work, Vanadis 6 cold work ledeburitic tool steel was cryogenically treated at different temperatures, and then low- or high-temperature tempered. The current research focused on the effect of process variables on the calculated wea…
View article: Assessment of Boron Diffusivities in Nickel Borides by Two Mathematical Approaches
Assessment of Boron Diffusivities in Nickel Borides by Two Mathematical Approaches Open
In the work of this contribution, two kinetics models have been employed to assess the boron diffusivities in nickel borides in case of Inconel 718 alloy. The first approach, named the alternative diffusion model (ADM), used the modified v…
View article: Effect of Sub-Zero Treatments and Tempering on Corrosion Behaviour of Vanadis 6 Tool Steel
Effect of Sub-Zero Treatments and Tempering on Corrosion Behaviour of Vanadis 6 Tool Steel Open
Sub-zero treatment of Vanadis 6 steel resulted in a considerable reduction of retained austenite amount, refinement of martensite, enhancement of population density of carbides, and modification of precipitation behaviour. Tempering of sub…
View article: Simulation of boronizing kinetics of ASTM A36 steel with the alternative kinetic model and the integral method
Simulation of boronizing kinetics of ASTM A36 steel with the alternative kinetic model and the integral method Open
In this study, two different mathematical models have been proposed for estimating the diffusivities of boron in the Fe 2 B layer on ASTM A36 steel in the range of 1173 to 1273 K with exposure times of 2 to 8 h. The boride incubation perio…
View article: Simulating the Growth of Dual-Phase Boride Layer on AISI M2 Steel by Two Kinetic Approaches
Simulating the Growth of Dual-Phase Boride Layer on AISI M2 Steel by Two Kinetic Approaches Open
Two kinetic approaches (integral method and Dybkov method) have been applied for simulating the boriding kinetics of AISI M2 steel in the range of 1173 to 1323 K, by including the effect of incubation periods. For the integral method, a pe…
View article: CrxNy coatings prepared by magnetron sputtering method
CrxNy coatings prepared by magnetron sputtering method Open
View article: THE INFLUENCE OF AUSTENITIZING TEMPERATURE LEVEL ON MICROSTRUCTURE DEVELOPMENT IN CHROMIUM LEDEBURITIC TOOL STEEL
THE INFLUENCE OF AUSTENITIZING TEMPERATURE LEVEL ON MICROSTRUCTURE DEVELOPMENT IN CHROMIUM LEDEBURITIC TOOL STEEL Open
The main goal of this article is to present the results of state the microstructure in chromium ledeburitic tool steel commercially named Sverker 3.This material was treated by austenitizing at various temperatures and then quenched in oil…
View article: Optimization of Abrasive Wear Performance of PM Vanadis 6 tool steel using Taguchi approach: A statistical study on the effects of heat treatment and testing conditions.
Optimization of Abrasive Wear Performance of PM Vanadis 6 tool steel using Taguchi approach: A statistical study on the effects of heat treatment and testing conditions. Open
The friction and wear behavior of cold-work tool steel materials is a subject of interest to researchers and tribologists.Both friction and wear are the key factors affecting the life of a tool.This study investigates the abrasive wear per…
View article: The Effect of Process Parameters on the Microstructure and Mechanical Properties of AW5083 Aluminum Laser Weld Joints
The Effect of Process Parameters on the Microstructure and Mechanical Properties of AW5083 Aluminum Laser Weld Joints Open
In this article, the effect of process parameters on the microstructure and mechanical properties of AW5083 aluminum alloy weld joints welded by a disk laser were studied. Butt welds were produced using 5087 (AlMg4.5MnZr) filler wire, with…
View article: History, Developments and Trends in the Heat Treatment of Steel
History, Developments and Trends in the Heat Treatment of Steel Open
Ferrous alloys (steels and cast irons) and their heat treatment have attracted a great amount of basic and applied research due to their decisive importance in modern industrial branches such as the automotive, transport and other industri…
View article: Influence of Laser Cladding Parameters on Microstructure, Microhardness, Chemical Composition, Wear and Corrosion Resistance of Fe–B Composite Coatings Reinforced with B4C and Si Particles
Influence of Laser Cladding Parameters on Microstructure, Microhardness, Chemical Composition, Wear and Corrosion Resistance of Fe–B Composite Coatings Reinforced with B4C and Si Particles Open
The paper presents the study results of a laser cladding process of C45 steel using powder mixtures. The aim of this study was to investigate the microstructure, X-ray diffraction (XRD), chemical composition (EDS), microhardness, corrosion…
View article: Microstructural changes in high-alloyed tool steels by sub-zero treatments
Microstructural changes in high-alloyed tool steels by sub-zero treatments Open
View article: THE INFLUENCE OF LASER PROCESSING ON MICROSTRUCTURE AND SELECTED PROPERTIES OF THE DIFFUSION BORONIZED LAYERS PRODUCED ON TOOL STEEL FOR METAL FORMING
THE INFLUENCE OF LASER PROCESSING ON MICROSTRUCTURE AND SELECTED PROPERTIES OF THE DIFFUSION BORONIZED LAYERS PRODUCED ON TOOL STEEL FOR METAL FORMING Open
The paper presents the study results of microstructure, phase composition, microhardness and wear resistance of Vanadis-6 tool steel after diffusion boriding and laser processing.In this study the diode laser device was used.As a result of…