Boriding of Binary Ni-Ti and Ternary Ni-Ti-Cu Shape Memory Alloys

• Authors: N. Ucar , N. Turku , A. Ozdemir , A. Calik
• Languages of publication: EN

Abstracts

EN

In this work, the boriding of binary (Ni-Ti) and ternary (Ni-Ti-Cu) shape memory alloys was carried out in a solid medium at 1173 K for 8 h using the powder pack method with Ekabor-Ni powders. Characterization of boride layer formed on the surface of alloys was identified by optical microscopy and scanning electron microscopy. TiB₂, NiB₂ and SiC phases in the boride layer of borided binary (Ni-Ti) and ternary (Ni-Ti-Cu) shape memory alloys was confirmed by X-ray diffraction analysis. The microhardness and thickness of the boride layers were measured. The obtained hardness values show a hardness anomaly due to porosity and structural defects with increase of Cu content, while a decrease in the value of hardness moving from the boride layer to main structure was observed.

Keywords

EN

61.66.Dk; 61.72.-y; 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)
• 61.72.-y: Defects and impurities in crystals; microstructure(for radiation induced defects, see 61.80.-x; for defects in surfaces, interfaces, and thin films, see 68.35.Dv and 68.55.Ln; see also 85.40.Ry Impurity doping, diffusion, and ion implantation technology; for effects of crystal defects and doping on superconducting transition temperature, see 74.62.Dh)
• 61.66.Dk: Alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 130
• Issue: 1
• Pages: 492-495

Dates

published

2016-07

Contributors

author

N. Ucar

• Physics Department, Faculty of Arts and Sciences, Suleyman Demirel University, Isparta, Turkey

author

N. Turku

• Physics Department, Faculty of Arts and Sciences, Suleyman Demirel University, Isparta, Turkey

author

A. Ozdemir

• Physics Department, Faculty of Arts and Sciences, Suleyman Demirel University, Isparta, Turkey

author

A. Calik

• Manufacturing Engineering Department, Faculty of Technology, Suleyman Demirel University, Isparta, Turkey

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Identifiers

DOI

10.12693/APhysPolA.130.492