The Structural Properties of Fe-Ti-B Based Alloys Produced by Mechanical Alloying

• Authors: O. Kon , U. Sen
• Languages of publication: EN

Abstracts

EN

In the present study, the production of Fe-Ti-B based alloys was realized and their structure and properties were investigated. Mechanical alloying proceeds by the continual cold welding and fracturing of the constituent mixture of Ti+4B+5Fe powder when subjected to the large compressive forces of a high speed mill. The powder charge together with 7 mm diameter steel balls were loaded into a tool steel grinding container at approximately 350 RPM for 20 h. The samples were shaped as cylinder of Ø15×8 mm dimensions by uniaxial pressing at 450 MPa. Then, the green body materials were produced by sintering at 1100°C for 1-4 h in argon atmosphere. The morphology of composite materials was investigated by optical microscopy and scanning electron microscopy and phase analysis was realized by x-ray diffraction analysis. The bulk densities of the materials were measured using by Archimedes method. Also, the micro-hardness of the samples was measured by Vickers indentation technique. As a result, Fe, iron boride (FeB, Fe₂B) and titanium boride (TiB₂) phases were detected in the phase analysis of the Fe-Ti-B based materials. The hardness of the materials was measured between 1107 HV_{0.05} and 1551 HV_{0.05}, depending on sintering time. The densities of the samples were determined between 4.205 g/cm³ and 4.219 g/cm³.

Keywords

EN

81.20.Ev; 06.30.Dr; 62.20.Qp

Discipline

• 62.20.Qp: Friction, tribology, and hardness(see also 46.55.+d Tribology and mechanical contacts in continuum mechanics of solids; for materials treatment effects on friction related properties, see 81.40.Pq)
• 81.20.Ev: Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
• 06.30.Dr: Mass and density

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 4
• Pages: 1214-1217

Dates

published

2015-04

Contributors

author

O. Kon

• Sakarya University, Technical Education Faculty, Metal Education, Department, 54187, Serdivan Sakarya, Turkey
• Sakarya University, Engineering Faculty, Department of Metallurgy and, Materials Engineering, 54187, Serdivan Sakarya, Turkey

author

U. Sen

• Sakarya University, Technical Education Faculty, Metal Education, Department, 54187, Serdivan Sakarya, Turkey
• Sakarya University, Engineering Faculty, Department of Metallurgy and, Materials Engineering, 54187, Serdivan Sakarya, Turkey

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Identifiers

DOI

10.12693/APhysPolA.127.1214