A new approach to sintering and boriding of steels 'Boro-sintering': Formation, microstructure and wear behaviors

Autor: Azmi Erdogan, Müge Kalkandelen, Bilal Kursuncu, M. Sabri Gök, Ali Günen
Přispěvatelé: Mühendislik ve Doğa Bilimleri Fakültesi -- Metalurji ve Malzeme Mühendisliği Bölümü, Günen, Ali, Kalkandelen, Müge
Rok vydání: 2020
Předmět:
Wear resistance
Dry sliding wear
Resistance
Sintering
Growth
Borides
02 engineering and technology
Iron compounds
Boriding | Chromium Boride | Nimonic Alloy
chemistry.chemical_compound
0203 mechanical engineering
Economic advantages
Materials Chemistry
Tribological behavior
Ductile
Microstructure
Different pressures
Work tool steel
Pressing
Boro-sintering
Physics
Surfaces and Interfaces
021001 nanoscience & nanotechnology
Condensed Matter Physics
Hardness
Surfaces
Coatings and Films
Wear of materials
020303 mechanical engineering & transports
Applied
0210 nano-technology
Vickers microhardness
FeB
Materials science
Iron
Materials Science
Mechanical-properties
Sintering durations
Fe2B
BORO
Process duration
Boride
Sliding wear
Boriding
Metallurgy
General Chemistry
AISI 1010
Stainless-steel
Kinetics
chemistry
Microhardness
Coatings & Films
Sintering process
Zdroj: SURFACE & COATINGS TECHNOLOGY
ISSN: 0005-2698
Popis: WOS: 000526984400027
In this study, sintering and boriding methods are applied as a single step, and it is aimed to gain time and economic advantage. For this purpose, powder mixtures prepared in suitable compositions were subjected to sintering and boro-sintering processes. In the boro-sintering process, the sintering was carried out in the boriding atmosphere and the two processes were carried out together. The processing, microstructure, hardness and dry sliding wear behavior of the samples were studied. The powders were pressed under different pressures, and their effects on the properties of the final component were investigated. The sintering process was carried out for 2 h at 1000 degrees C, and the boro-sintering process was carried out at 1000 degrees C for 2, 4 and 6 h. Fe2B and Fe2B + FeB boride phases occurred depending on the boro-sintering process duration. Boride layer thickness varied between 120 and 400 mu m according to boro-sintering duration and cold press pressure. Vickers micro-hardness and Ball-on-disc wear tests were performed on the samples. Whereas 205-215 HV hardnesses were obtained in the sintered samples, 1252-1705 HV hardness values were reached by boro-sintering process. Increased cold pressing pressure reduced wear losses. However, the long boro-sintering time increased surface hardness, but reduced wear resistance.
Scientific Research Funds of Bartin University [2018-FEN-A-023]
This work was supported by Scientific Research Funds of Bartin University (Project Number: 2018-FEN-A-023).
Databáze: OpenAIRE
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