Pack-Boriding of Pure Iron with Powder Mixtures Containing ZrB2

Author:

Calik A.1,Ucar N.2,Karakas M.S.3,Tanis H.4

Affiliation:

1. Department of Manufacturing Engineering , Applied Sciences University of Isparta , Isparta 32260 , Turkey

2. Department of Physics , Süleyman Demirel University , Isparta 32260 , Turkey

3. Department of Metallurgical and Materials Engineering , Konya Technical University , Konya 42130 , Turkey

4. Department of Manufacturing Engineering , Süleyman Demirel University , Isparta 32260 , Turkey

Abstract

Abstract Boriding of pure iron was investigated using the powder pack method with boriding powder mixtures containing different weight fractions of ZrB2 (5 %, 10 %, 15 % and 20 %). The samples were borided in an electric resistance furnace for an exposure time of 4 h at 1,173 K temperature under atmospheric pressure. Borided samples were characterized by optical microscopy, X-ray diffraction analyses and microhardness tests. Results showed that the boride layers consisted mainly of FeB and Fe2B phases. No significant difference in boride layer thicknesses (average 140 μm) could be observed as a function of ZrB2 content. The needle-like morphology of the boride layer became more prominent with increasing weight fraction of ZrB2 in the boriding powders. The average microhardness of the boride layer decreased with increasing ZrB2 content due to changes in the morphology of the boride layer.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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1. Thermodynamic Aspects of Powder-Pack Boronizing;Journal of Phase Equilibria and Diffusion;2024-02-07

2. Surface Characterization and Boriding of Nickel and Cobalt Alloys;Protection of Metals and Physical Chemistry of Surfaces;2022-08

3. Simulating the Growth of Dual-Phase Boride Layer on AISI M2 Steel by Two Kinetic Approaches;Coatings;2021-04-09

4. A fuzzy control method for optimal cutting temperature of pure iron;International Journal of Materials and Product Technology;2021

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